[GitHub] johnyangk closed pull request #116: [NEMO-211] Move Java package and Maven artifact from edu.snu.nemo to org.apache.nemo

[GitBox <gi...@apache.org>]

johnyangk closed pull request #116: [NEMO-211] Move Java package and Maven artifact from edu.snu.nemo to org.apache.nemo
URL: https://github.com/apache/incubator-nemo/pull/116
 
 
   

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
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diff --git a/README.md b/README.md
index 76c875e5f..dc53a5d68 100644
--- a/README.md
+++ b/README.md
@@ -78,8 +78,8 @@ Please refer to the [Contribution guideline](.github/CONTRIBUTING.md) to contrib
 ./bin/run_beam.sh \
 	-job_id mr_default \
 	-executor_json `pwd`/examples/resources/beam_test_executor_resources.json \
-	-optimization_policy edu.snu.nemo.compiler.optimizer.policy.DefaultPolicy \
-	-user_main edu.snu.nemo.examples.beam.WordCount \
+	-optimization_policy org.apache.nemo.compiler.optimizer.policy.DefaultPolicy \
+	-user_main org.apache.nemo.examples.beam.WordCount \
 	-user_args "`pwd`/examples/resources/test_input_wordcount `pwd`/examples/resources/test_output_wordcount"
 
 ## YARN cluster example
@@ -87,8 +87,8 @@ Please refer to the [Contribution guideline](.github/CONTRIBUTING.md) to contrib
 	-deploy_mode yarn \
  	-job_id mr_transient \
 	-executor_json `pwd`/examples/resources/beam_test_executor_resources.json \
- 	-user_main edu.snu.nemo.examples.beam.WordCount \
- 	-optimization_policy edu.snu.nemo.compiler.optimizer.policy.TransientResourcePolicy \
+ 	-user_main org.apache.nemo.examples.beam.WordCount \
+ 	-optimization_policy org.apache.nemo.compiler.optimizer.policy.TransientResourcePolicy \
 	-user_args "hdfs://v-m:9000/test_input_wordcount hdfs://v-m:9000/test_output_wordcount"
 ```
 ## Resource Configuration
@@ -134,8 +134,8 @@ Nemo Compiler and Engine can store JSON representation of intermediate DAGs.
 ./bin/run_beam.sh \
 	-job_id als \
 	-executor_json `pwd`/examples/resources/beam_test_executor_resources.json \
-  	-user_main edu.snu.nemo.examples.beam.AlternatingLeastSquare \
-  	-optimization_policy edu.snu.nemo.compiler.optimizer.policy.TransientResourcePolicy \
+  	-user_main org.apache.nemo.examples.beam.AlternatingLeastSquare \
+  	-optimization_policy org.apache.nemo.compiler.optimizer.policy.TransientResourcePolicy \
   	-dag_dir "./dag/als" \
   	-user_args "`pwd`/examples/resources/test_input_als 10 3"
 ```
diff --git a/bin/json2dot.py b/bin/json2dot.py
index f3caf7dd4..547c60111 100755
--- a/bin/json2dot.py
+++ b/bin/json2dot.py
@@ -133,7 +133,7 @@ def __init__(self, id, properties, state):
     def dot(self):
         color = 'black'
         try:
-            placement = self.properties['executionProperties']['edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty']
+            placement = self.properties['executionProperties']['org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty']
             if (placement == 'Transient'):
                 color = 'orange'
             if (placement == 'Reserved'):
diff --git a/bin/run_beam.sh b/bin/run_beam.sh
index 17cdd1107..39386f451 100755
--- a/bin/run_beam.sh
+++ b/bin/run_beam.sh
@@ -14,4 +14,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-java -Dlog4j.configuration=file://`pwd`/log4j.properties -cp examples/beam/target/nemo-examples-beam-0.1-SNAPSHOT-shaded.jar:`yarn classpath` edu.snu.nemo.client.JobLauncher "$@"
+java -Dlog4j.configuration=file://`pwd`/log4j.properties -cp examples/beam/target/nemo-examples-beam-0.1-SNAPSHOT-shaded.jar:`yarn classpath` org.apache.nemo.client.JobLauncher "$@"
diff --git a/bin/run_spark.sh b/bin/run_spark.sh
index d8e14b65a..4160b906c 100755
--- a/bin/run_spark.sh
+++ b/bin/run_spark.sh
@@ -14,4 +14,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-java -Dlog4j.configuration=file://`pwd`/log4j.properties -cp examples/spark/target/nemo-examples-spark-0.1-SNAPSHOT-shaded.jar:`yarn classpath` edu.snu.nemo.client.JobLauncher "$@"
+java -Dlog4j.configuration=file://`pwd`/log4j.properties -cp examples/spark/target/nemo-examples-spark-0.1-SNAPSHOT-shaded.jar:`yarn classpath` org.apache.nemo.client.JobLauncher "$@"
diff --git a/client/pom.xml b/client/pom.xml
index ece9e3bf8..1fb19198e 100644
--- a/client/pom.xml
+++ b/client/pom.xml
@@ -19,7 +19,7 @@ limitations under the License.
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <artifactId>nemo-project</artifactId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../</relativePath>
@@ -37,17 +37,17 @@ limitations under the License.
 
     <dependencies>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-common</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-driver</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-conf</artifactId>
             <version>${project.version}</version>
         </dependency>
diff --git a/client/src/main/java/edu/snu/nemo/client/ClientEndpoint.java b/client/src/main/java/edu/snu/nemo/client/ClientEndpoint.java
index b31807ad3..59b3814cc 100644
--- a/client/src/main/java/edu/snu/nemo/client/ClientEndpoint.java
+++ b/client/src/main/java/edu/snu/nemo/client/ClientEndpoint.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.client;
+package org.apache.nemo.client;
 
-import edu.snu.nemo.runtime.common.state.PlanState;
+import org.apache.nemo.runtime.common.state.PlanState;
 
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicReference;
diff --git a/client/src/main/java/edu/snu/nemo/client/DriverEndpoint.java b/client/src/main/java/edu/snu/nemo/client/DriverEndpoint.java
index 4338877b9..3db471ce3 100644
--- a/client/src/main/java/edu/snu/nemo/client/DriverEndpoint.java
+++ b/client/src/main/java/edu/snu/nemo/client/DriverEndpoint.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.client;
+package org.apache.nemo.client;
 
-import edu.snu.nemo.runtime.common.state.PlanState;
-import edu.snu.nemo.runtime.master.PlanStateManager;
+import org.apache.nemo.runtime.common.state.PlanState;
+import org.apache.nemo.runtime.master.PlanStateManager;
 
 import java.util.concurrent.TimeUnit;
 
diff --git a/client/src/main/java/edu/snu/nemo/client/DriverRPCServer.java b/client/src/main/java/edu/snu/nemo/client/DriverRPCServer.java
index 16a072826..c722d0bf3 100644
--- a/client/src/main/java/edu/snu/nemo/client/DriverRPCServer.java
+++ b/client/src/main/java/edu/snu/nemo/client/DriverRPCServer.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.client;
+package org.apache.nemo.client;
 
 import com.google.protobuf.InvalidProtocolBufferException;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
 import org.apache.reef.annotations.audience.ClientSide;
 import org.apache.reef.tang.Configuration;
 import org.apache.reef.tang.Injector;
diff --git a/client/src/main/java/edu/snu/nemo/client/JobLauncher.java b/client/src/main/java/edu/snu/nemo/client/JobLauncher.java
index bf4333263..0ae7dfdd4 100644
--- a/client/src/main/java/edu/snu/nemo/client/JobLauncher.java
+++ b/client/src/main/java/edu/snu/nemo/client/JobLauncher.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.client;
+package org.apache.nemo.client;
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.protobuf.ByteString;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.driver.NemoDriver;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.MessageParameters;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.driver.NemoDriver;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.MessageParameters;
 import org.apache.commons.lang3.SerializationUtils;
 import org.apache.reef.client.DriverConfiguration;
 import org.apache.reef.client.DriverLauncher;
diff --git a/client/src/main/java/edu/snu/nemo/client/NemoClient.java b/client/src/main/java/edu/snu/nemo/client/NemoClient.java
index 69fe0997c..3b4178f0d 100644
--- a/client/src/main/java/edu/snu/nemo/client/NemoClient.java
+++ b/client/src/main/java/edu/snu/nemo/client/NemoClient.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.client;
+package org.apache.nemo.client;
 
 import org.apache.reef.annotations.audience.ClientSide;
 import org.apache.reef.client.JobMessage;
diff --git a/client/src/main/java/edu/snu/nemo/client/StateTranslator.java b/client/src/main/java/edu/snu/nemo/client/StateTranslator.java
index 287a0a070..e0e447923 100644
--- a/client/src/main/java/edu/snu/nemo/client/StateTranslator.java
+++ b/client/src/main/java/edu/snu/nemo/client/StateTranslator.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.client;
+package org.apache.nemo.client;
 
-import edu.snu.nemo.runtime.common.state.PlanState;
+import org.apache.nemo.runtime.common.state.PlanState;
 
 /**
  * A class provides the translation between the state of plan and corresponding {@link ClientEndpoint}.
diff --git a/client/src/test/java/edu/snu/nemo/client/ClientDriverRPCTest.java b/client/src/test/java/edu/snu/nemo/client/ClientDriverRPCTest.java
index 6122de1cc..109c06850 100644
--- a/client/src/test/java/edu/snu/nemo/client/ClientDriverRPCTest.java
+++ b/client/src/test/java/edu/snu/nemo/client/ClientDriverRPCTest.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.client;
+package org.apache.nemo.client;
 
-import edu.snu.nemo.runtime.master.ClientRPC;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.master.ClientRPC;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
 import org.apache.reef.tang.exceptions.InjectionException;
diff --git a/client/src/test/java/edu/snu/nemo/client/ClientEndpointTest.java b/client/src/test/java/edu/snu/nemo/client/ClientEndpointTest.java
index b033dd89d..fceae672f 100644
--- a/client/src/test/java/edu/snu/nemo/client/ClientEndpointTest.java
+++ b/client/src/test/java/edu/snu/nemo/client/ClientEndpointTest.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.client;
+package org.apache.nemo.client;
 
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.common.state.PlanState;
-import edu.snu.nemo.runtime.common.state.TaskState;
-import edu.snu.nemo.runtime.master.MetricMessageHandler;
-import edu.snu.nemo.runtime.master.PlanStateManager;
-import edu.snu.nemo.runtime.common.plan.TestPlanGenerator;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.common.state.PlanState;
+import org.apache.nemo.runtime.common.state.TaskState;
+import org.apache.nemo.runtime.master.MetricMessageHandler;
+import org.apache.nemo.runtime.master.PlanStateManager;
+import org.apache.nemo.runtime.common.plan.TestPlanGenerator;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
 import org.junit.Test;
diff --git a/common/pom.xml b/common/pom.xml
index 18ef10b02..976dee752 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -19,7 +19,7 @@ limitations under the License.
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <artifactId>nemo-project</artifactId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../</relativePath>
diff --git a/common/src/main/java/edu/snu/nemo/common/Cloneable.java b/common/src/main/java/edu/snu/nemo/common/Cloneable.java
index 4a75b7d96..5e4099aa7 100644
--- a/common/src/main/java/edu/snu/nemo/common/Cloneable.java
+++ b/common/src/main/java/edu/snu/nemo/common/Cloneable.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common;
+package org.apache.nemo.common;
 
 /**
  * This interface is implemented by objects that can be cloned.
diff --git a/common/src/main/java/edu/snu/nemo/common/DataSkewMetricFactory.java b/common/src/main/java/edu/snu/nemo/common/DataSkewMetricFactory.java
index 2847d8da2..1b214b8ea 100644
--- a/common/src/main/java/edu/snu/nemo/common/DataSkewMetricFactory.java
+++ b/common/src/main/java/edu/snu/nemo/common/DataSkewMetricFactory.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common;
+package org.apache.nemo.common;
 
 import java.util.Map;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/DirectByteArrayOutputStream.java b/common/src/main/java/edu/snu/nemo/common/DirectByteArrayOutputStream.java
index 19474680b..9dfcd554c 100644
--- a/common/src/main/java/edu/snu/nemo/common/DirectByteArrayOutputStream.java
+++ b/common/src/main/java/edu/snu/nemo/common/DirectByteArrayOutputStream.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common;
+package org.apache.nemo.common;
 
 import java.io.ByteArrayOutputStream;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/HashRange.java b/common/src/main/java/edu/snu/nemo/common/HashRange.java
index cdc7d49dd..f803268b4 100644
--- a/common/src/main/java/edu/snu/nemo/common/HashRange.java
+++ b/common/src/main/java/edu/snu/nemo/common/HashRange.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common;
+package org.apache.nemo.common;
 
 import java.util.Arrays;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/KeyExtractor.java b/common/src/main/java/edu/snu/nemo/common/KeyExtractor.java
index 23bc6abd3..d118e1485 100644
--- a/common/src/main/java/edu/snu/nemo/common/KeyExtractor.java
+++ b/common/src/main/java/edu/snu/nemo/common/KeyExtractor.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common;
+package org.apache.nemo.common;
 
 import java.io.Serializable;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/KeyRange.java b/common/src/main/java/edu/snu/nemo/common/KeyRange.java
index 6fcac362f..3ce8a9c96 100644
--- a/common/src/main/java/edu/snu/nemo/common/KeyRange.java
+++ b/common/src/main/java/edu/snu/nemo/common/KeyRange.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common;
+package org.apache.nemo.common;
 
 import java.io.Serializable;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/MetricFactory.java b/common/src/main/java/edu/snu/nemo/common/MetricFactory.java
index a98b81b89..83f031afe 100644
--- a/common/src/main/java/edu/snu/nemo/common/MetricFactory.java
+++ b/common/src/main/java/edu/snu/nemo/common/MetricFactory.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common;
+package org.apache.nemo.common;
 
 import java.io.Serializable;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/Pair.java b/common/src/main/java/edu/snu/nemo/common/Pair.java
index 68e8efb79..e789415e8 100644
--- a/common/src/main/java/edu/snu/nemo/common/Pair.java
+++ b/common/src/main/java/edu/snu/nemo/common/Pair.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common;
+package org.apache.nemo.common;
 
 import java.io.Serializable;
 import java.util.Objects;
diff --git a/common/src/main/java/edu/snu/nemo/common/StateMachine.java b/common/src/main/java/edu/snu/nemo/common/StateMachine.java
index 6e10407a2..19adc1730 100644
--- a/common/src/main/java/edu/snu/nemo/common/StateMachine.java
+++ b/common/src/main/java/edu/snu/nemo/common/StateMachine.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common;
+package org.apache.nemo.common;
 
-import edu.snu.nemo.common.exception.IllegalStateTransitionException;
+import org.apache.nemo.common.exception.IllegalStateTransitionException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/coder/BytesDecoderFactory.java b/common/src/main/java/edu/snu/nemo/common/coder/BytesDecoderFactory.java
index a01dc19a3..5fa9ac6fa 100644
--- a/common/src/main/java/edu/snu/nemo/common/coder/BytesDecoderFactory.java
+++ b/common/src/main/java/edu/snu/nemo/common/coder/BytesDecoderFactory.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.coder;
+package org.apache.nemo.common.coder;
 
-import edu.snu.nemo.common.DirectByteArrayOutputStream;
+import org.apache.nemo.common.DirectByteArrayOutputStream;
 
 import java.io.IOException;
 import java.io.InputStream;
diff --git a/common/src/main/java/edu/snu/nemo/common/coder/BytesEncoderFactory.java b/common/src/main/java/edu/snu/nemo/common/coder/BytesEncoderFactory.java
index 771884298..e85346db0 100644
--- a/common/src/main/java/edu/snu/nemo/common/coder/BytesEncoderFactory.java
+++ b/common/src/main/java/edu/snu/nemo/common/coder/BytesEncoderFactory.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.coder;
+package org.apache.nemo.common.coder;
 
 import java.io.*;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/coder/DecoderFactory.java b/common/src/main/java/edu/snu/nemo/common/coder/DecoderFactory.java
index 16fa877c5..1e4d4d53c 100644
--- a/common/src/main/java/edu/snu/nemo/common/coder/DecoderFactory.java
+++ b/common/src/main/java/edu/snu/nemo/common/coder/DecoderFactory.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.coder;
+package org.apache.nemo.common.coder;
 
 import java.io.IOException;
 import java.io.InputStream;
diff --git a/common/src/main/java/edu/snu/nemo/common/coder/EncoderFactory.java b/common/src/main/java/edu/snu/nemo/common/coder/EncoderFactory.java
index 82c3730c0..6a5690aa4 100644
--- a/common/src/main/java/edu/snu/nemo/common/coder/EncoderFactory.java
+++ b/common/src/main/java/edu/snu/nemo/common/coder/EncoderFactory.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.coder;
+package org.apache.nemo.common.coder;
 
 import java.io.IOException;
 import java.io.OutputStream;
diff --git a/common/src/main/java/edu/snu/nemo/common/coder/IntDecoderFactory.java b/common/src/main/java/edu/snu/nemo/common/coder/IntDecoderFactory.java
index d79ec35c7..2f6bc502e 100644
--- a/common/src/main/java/edu/snu/nemo/common/coder/IntDecoderFactory.java
+++ b/common/src/main/java/edu/snu/nemo/common/coder/IntDecoderFactory.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.coder;
+package org.apache.nemo.common.coder;
 
 import java.io.*;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/coder/IntEncoderFactory.java b/common/src/main/java/edu/snu/nemo/common/coder/IntEncoderFactory.java
index 0a40de56d..f3a2c1835 100644
--- a/common/src/main/java/edu/snu/nemo/common/coder/IntEncoderFactory.java
+++ b/common/src/main/java/edu/snu/nemo/common/coder/IntEncoderFactory.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.coder;
+package org.apache.nemo.common.coder;
 
 import java.io.*;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/coder/LongDecoderFactory.java b/common/src/main/java/edu/snu/nemo/common/coder/LongDecoderFactory.java
index 4335413a4..256faa737 100644
--- a/common/src/main/java/edu/snu/nemo/common/coder/LongDecoderFactory.java
+++ b/common/src/main/java/edu/snu/nemo/common/coder/LongDecoderFactory.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.coder;
+package org.apache.nemo.common.coder;
 
 import java.io.DataInputStream;
 import java.io.IOException;
diff --git a/common/src/main/java/edu/snu/nemo/common/coder/LongEncoderFactory.java b/common/src/main/java/edu/snu/nemo/common/coder/LongEncoderFactory.java
index f6e5aaa32..ddd0e91a6 100644
--- a/common/src/main/java/edu/snu/nemo/common/coder/LongEncoderFactory.java
+++ b/common/src/main/java/edu/snu/nemo/common/coder/LongEncoderFactory.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.coder;
+package org.apache.nemo.common.coder;
 
 import java.io.DataOutputStream;
 import java.io.IOException;
diff --git a/common/src/main/java/edu/snu/nemo/common/coder/PairDecoderFactory.java b/common/src/main/java/edu/snu/nemo/common/coder/PairDecoderFactory.java
index 9cd0fb178..7ab321c9b 100644
--- a/common/src/main/java/edu/snu/nemo/common/coder/PairDecoderFactory.java
+++ b/common/src/main/java/edu/snu/nemo/common/coder/PairDecoderFactory.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.coder;
+package org.apache.nemo.common.coder;
 
-import edu.snu.nemo.common.Pair;
+import org.apache.nemo.common.Pair;
 
 import java.io.IOException;
 import java.io.InputStream;
diff --git a/common/src/main/java/edu/snu/nemo/common/coder/PairEncoderFactory.java b/common/src/main/java/edu/snu/nemo/common/coder/PairEncoderFactory.java
index 0837b5797..6f6d8c547 100644
--- a/common/src/main/java/edu/snu/nemo/common/coder/PairEncoderFactory.java
+++ b/common/src/main/java/edu/snu/nemo/common/coder/PairEncoderFactory.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.coder;
+package org.apache.nemo.common.coder;
 
-import edu.snu.nemo.common.Pair;
+import org.apache.nemo.common.Pair;
 import java.io.IOException;
 import java.io.OutputStream;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/dag/DAG.java b/common/src/main/java/edu/snu/nemo/common/dag/DAG.java
index 593a99b54..7a642a301 100644
--- a/common/src/main/java/edu/snu/nemo/common/dag/DAG.java
+++ b/common/src/main/java/edu/snu/nemo/common/dag/DAG.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.dag;
+package org.apache.nemo.common.dag;
 
-import edu.snu.nemo.common.exception.IllegalEdgeOperationException;
-import edu.snu.nemo.common.exception.IllegalVertexOperationException;
-import edu.snu.nemo.common.ir.vertex.LoopVertex;
+import org.apache.nemo.common.exception.IllegalEdgeOperationException;
+import org.apache.nemo.common.exception.IllegalVertexOperationException;
+import org.apache.nemo.common.ir.vertex.LoopVertex;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/dag/DAGBuilder.java b/common/src/main/java/edu/snu/nemo/common/dag/DAGBuilder.java
index 442b7ddd0..e131ffd93 100644
--- a/common/src/main/java/edu/snu/nemo/common/dag/DAGBuilder.java
+++ b/common/src/main/java/edu/snu/nemo/common/dag/DAGBuilder.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.dag;
+package org.apache.nemo.common.dag;
 
-import edu.snu.nemo.common.exception.CompileTimeOptimizationException;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.BroadcastVariableIdProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.MetricCollectionProperty;
-import edu.snu.nemo.common.ir.vertex.*;
-import edu.snu.nemo.common.exception.IllegalVertexOperationException;
+import org.apache.nemo.common.exception.CompileTimeOptimizationException;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.BroadcastVariableIdProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.MetricCollectionProperty;
+import org.apache.nemo.common.ir.vertex.*;
+import org.apache.nemo.common.exception.IllegalVertexOperationException;
 
 import java.io.Serializable;
 import java.util.*;
diff --git a/common/src/main/java/edu/snu/nemo/common/dag/Edge.java b/common/src/main/java/edu/snu/nemo/common/dag/Edge.java
index 2e6982778..9506d4079 100644
--- a/common/src/main/java/edu/snu/nemo/common/dag/Edge.java
+++ b/common/src/main/java/edu/snu/nemo/common/dag/Edge.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.dag;
+package org.apache.nemo.common.dag;
 
 import java.io.Serializable;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/dag/Vertex.java b/common/src/main/java/edu/snu/nemo/common/dag/Vertex.java
index b82fa2098..9a4074052 100644
--- a/common/src/main/java/edu/snu/nemo/common/dag/Vertex.java
+++ b/common/src/main/java/edu/snu/nemo/common/dag/Vertex.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.dag;
+package org.apache.nemo.common.dag;
 
 import java.io.Serializable;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/eventhandler/CommonEventHandler.java b/common/src/main/java/edu/snu/nemo/common/eventhandler/CommonEventHandler.java
index 547f29b26..515bdf037 100644
--- a/common/src/main/java/edu/snu/nemo/common/eventhandler/CommonEventHandler.java
+++ b/common/src/main/java/edu/snu/nemo/common/eventhandler/CommonEventHandler.java
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package edu.snu.nemo.common.eventhandler;
+package org.apache.nemo.common.eventhandler;
 
 import org.apache.reef.wake.EventHandler;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/eventhandler/CompilerEvent.java b/common/src/main/java/edu/snu/nemo/common/eventhandler/CompilerEvent.java
index c0c5397d2..949be7c40 100644
--- a/common/src/main/java/edu/snu/nemo/common/eventhandler/CompilerEvent.java
+++ b/common/src/main/java/edu/snu/nemo/common/eventhandler/CompilerEvent.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.eventhandler;
+package org.apache.nemo.common.eventhandler;
 
 /**
  * An empty interface to indicate events that are sent from Compiler.
diff --git a/common/src/main/java/edu/snu/nemo/common/eventhandler/CompilerEventHandler.java b/common/src/main/java/edu/snu/nemo/common/eventhandler/CompilerEventHandler.java
index fd67918f3..fccdb48c8 100644
--- a/common/src/main/java/edu/snu/nemo/common/eventhandler/CompilerEventHandler.java
+++ b/common/src/main/java/edu/snu/nemo/common/eventhandler/CompilerEventHandler.java
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package edu.snu.nemo.common.eventhandler;
+package org.apache.nemo.common.eventhandler;
 
 /**
  * Class for handling events sent from Compiler.
diff --git a/common/src/main/java/edu/snu/nemo/common/eventhandler/PubSubEventHandlerWrapper.java b/common/src/main/java/edu/snu/nemo/common/eventhandler/PubSubEventHandlerWrapper.java
index 6f4ddf401..4543c0557 100644
--- a/common/src/main/java/edu/snu/nemo/common/eventhandler/PubSubEventHandlerWrapper.java
+++ b/common/src/main/java/edu/snu/nemo/common/eventhandler/PubSubEventHandlerWrapper.java
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package edu.snu.nemo.common.eventhandler;
+package org.apache.nemo.common.eventhandler;
 
 import org.apache.reef.wake.impl.PubSubEventHandler;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/eventhandler/RuntimeEvent.java b/common/src/main/java/edu/snu/nemo/common/eventhandler/RuntimeEvent.java
index 2d288465e..29339bde4 100644
--- a/common/src/main/java/edu/snu/nemo/common/eventhandler/RuntimeEvent.java
+++ b/common/src/main/java/edu/snu/nemo/common/eventhandler/RuntimeEvent.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.eventhandler;
+package org.apache.nemo.common.eventhandler;
 
 /**
  * An empty interface to indicate events that are sent from Runtime.
diff --git a/common/src/main/java/edu/snu/nemo/common/eventhandler/RuntimeEventHandler.java b/common/src/main/java/edu/snu/nemo/common/eventhandler/RuntimeEventHandler.java
index 49af563ca..3cc28d93f 100644
--- a/common/src/main/java/edu/snu/nemo/common/eventhandler/RuntimeEventHandler.java
+++ b/common/src/main/java/edu/snu/nemo/common/eventhandler/RuntimeEventHandler.java
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package edu.snu.nemo.common.eventhandler;
+package org.apache.nemo.common.eventhandler;
 
 /**
  * Class for handling events sent from Runtime.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/BlockFetchException.java b/common/src/main/java/edu/snu/nemo/common/exception/BlockFetchException.java
index 3d0192ee9..2327b45c0 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/BlockFetchException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/BlockFetchException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * BlockFetchException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/BlockWriteException.java b/common/src/main/java/edu/snu/nemo/common/exception/BlockWriteException.java
index 1ed5b3b80..0029f6dde 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/BlockWriteException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/BlockWriteException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * BlockWriteException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/CompileTimeOptimizationException.java b/common/src/main/java/edu/snu/nemo/common/exception/CompileTimeOptimizationException.java
index b5e574ff4..86261429a 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/CompileTimeOptimizationException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/CompileTimeOptimizationException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * CompileTimeOptimizationException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/ContainerException.java b/common/src/main/java/edu/snu/nemo/common/exception/ContainerException.java
index 00832f248..86e8365ad 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/ContainerException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/ContainerException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * ContainerException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/DynamicOptimizationException.java b/common/src/main/java/edu/snu/nemo/common/exception/DynamicOptimizationException.java
index 88fedf409..fa919e886 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/DynamicOptimizationException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/DynamicOptimizationException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * DynamicOptimizationException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/IllegalEdgeOperationException.java b/common/src/main/java/edu/snu/nemo/common/exception/IllegalEdgeOperationException.java
index 8ffe4a5c6..8a2f83c1f 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/IllegalEdgeOperationException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/IllegalEdgeOperationException.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 
 /**
  * IllegalEdgeOperationException.
- * Thrown when an operation is conducted with a {edu.snu.nemo.runtime.common.plan.stage.StageEdge}
+ * Thrown when an operation is conducted with a {org.apache.nemo.runtime.common.plan.stage.StageEdge}
  * that is unknown/invalid/out of scope.
  */
 public final class IllegalEdgeOperationException extends RuntimeException {
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/IllegalMessageException.java b/common/src/main/java/edu/snu/nemo/common/exception/IllegalMessageException.java
index 55179a210..093d65392 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/IllegalMessageException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/IllegalMessageException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * IllegalMessageException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/IllegalStateTransitionException.java b/common/src/main/java/edu/snu/nemo/common/exception/IllegalStateTransitionException.java
index b30684f4b..9d18a6415 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/IllegalStateTransitionException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/IllegalStateTransitionException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * IllegalStateTransitionException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/IllegalVertexOperationException.java b/common/src/main/java/edu/snu/nemo/common/exception/IllegalVertexOperationException.java
index 35d977d81..414899392 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/IllegalVertexOperationException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/IllegalVertexOperationException.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * IllegalVertexOperationException.
- * Thrown when an operation is conducted with a {edu.snu.nemo.common.ir.IRVertex}
+ * Thrown when an operation is conducted with a {org.apache.nemo.common.ir.IRVertex}
  * that is unknown/invalid/out of scope.
  */
 public final class IllegalVertexOperationException extends RuntimeException {
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/InvalidParameterException.java b/common/src/main/java/edu/snu/nemo/common/exception/InvalidParameterException.java
index 40b8895c2..df5de5111 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/InvalidParameterException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/InvalidParameterException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * InvalidParameterException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/JsonParseException.java b/common/src/main/java/edu/snu/nemo/common/exception/JsonParseException.java
index 0f8ccffc2..975ff7495 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/JsonParseException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/JsonParseException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * JsonParseException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/NodeConnectionException.java b/common/src/main/java/edu/snu/nemo/common/exception/NodeConnectionException.java
index ef87e2ec1..89c5ffd8d 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/NodeConnectionException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/NodeConnectionException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * NodeConnectionException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/PhysicalPlanGenerationException.java b/common/src/main/java/edu/snu/nemo/common/exception/PhysicalPlanGenerationException.java
index 47bf295d0..42a6ac4a9 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/PhysicalPlanGenerationException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/PhysicalPlanGenerationException.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * PhysicalPlanGenerationException.
  * Thrown when any exception occurs during the conversion
- * from {@link edu.snu.nemo.common.dag.DAG}
- * to {edu.snu.nemo.runtime.common.plan.physical.PhysicalPlan}
+ * from {@link org.apache.nemo.common.dag.DAG}
+ * to {org.apache.nemo.runtime.common.plan.physical.PhysicalPlan}
  */
 public final class PhysicalPlanGenerationException extends RuntimeException {
   /**
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/SchedulingException.java b/common/src/main/java/edu/snu/nemo/common/exception/SchedulingException.java
index 4788af1f6..240caf8e0 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/SchedulingException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/SchedulingException.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * SchedulingException.
  * Thrown when any exception occurs while trying to schedule
- * a {edu.snu.nemo.runtime.common.plan.physical.Task} to an executor.
+ * a {org.apache.nemo.runtime.common.plan.physical.Task} to an executor.
  */
 public final class SchedulingException extends RuntimeException {
   /**
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/UnknownExecutionStateException.java b/common/src/main/java/edu/snu/nemo/common/exception/UnknownExecutionStateException.java
index 84adb9a20..70539b33c 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/UnknownExecutionStateException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/UnknownExecutionStateException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * UnknownExecutionStateException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/UnknownFailureCauseException.java b/common/src/main/java/edu/snu/nemo/common/exception/UnknownFailureCauseException.java
index e6fd9f17c..04ac9bf68 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/UnknownFailureCauseException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/UnknownFailureCauseException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * UnknownFailureCauseException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/UnrecoverableFailureException.java b/common/src/main/java/edu/snu/nemo/common/exception/UnrecoverableFailureException.java
index 85e563f0b..46256bd64 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/UnrecoverableFailureException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/UnrecoverableFailureException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * UnrecoverableFailureException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedBlockStoreException.java b/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedBlockStoreException.java
index 203f747ab..f58af6d9e 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedBlockStoreException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedBlockStoreException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * UnsupportedBlockStoreException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedCommPatternException.java b/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedCommPatternException.java
index 7f9f8a92c..fbf348c94 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedCommPatternException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedCommPatternException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * UnsupportedCommPatternException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedCompressionException.java b/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedCompressionException.java
index 2002de266..32e0754e9 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedCompressionException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedCompressionException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * UnsupportedCompressionException
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedExecutionPropertyException.java b/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedExecutionPropertyException.java
index ce83a7075..a7b20b11b 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedExecutionPropertyException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedExecutionPropertyException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * UnsupportedExecutionPropertyException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedMethodException.java b/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedMethodException.java
index b22925357..eadf08b8e 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedMethodException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedMethodException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * UnsupportedMethodException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedMetricException.java b/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedMetricException.java
index f7a32964e..364d4f57f 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedMetricException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedMetricException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * UnsupportedMetricException.
diff --git a/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedPartitionerException.java b/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedPartitionerException.java
index 9f7b3e0c4..fa6b95135 100644
--- a/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedPartitionerException.java
+++ b/common/src/main/java/edu/snu/nemo/common/exception/UnsupportedPartitionerException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.exception;
+package org.apache.nemo.common.exception;
 
 /**
  * UnsupportedPartitionerException.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/IdManager.java b/common/src/main/java/edu/snu/nemo/common/ir/IdManager.java
index 9fd96facb..46f740f89 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/IdManager.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/IdManager.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir;
+package org.apache.nemo.common.ir;
 
 import java.util.concurrent.atomic.AtomicInteger;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/OutputCollector.java b/common/src/main/java/edu/snu/nemo/common/ir/OutputCollector.java
index b833d221c..cef94c4b8 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/OutputCollector.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/OutputCollector.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir;
+package org.apache.nemo.common.ir;
 
 import java.io.Serializable;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/Readable.java b/common/src/main/java/edu/snu/nemo/common/ir/Readable.java
index 2e850b5dc..6ba278827 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/Readable.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/Readable.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir;
+package org.apache.nemo.common.ir;
 
 import java.io.IOException;
 import java.io.Serializable;
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/IREdge.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/IREdge.java
index 3cd1bd6d4..7e2f401fd 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/IREdge.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/IREdge.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge;
-
-import edu.snu.nemo.common.dag.Edge;
-import edu.snu.nemo.common.ir.IdManager;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
-import edu.snu.nemo.common.ir.executionproperty.ExecutionPropertyMap;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
+package org.apache.nemo.common.ir.edge;
+
+import org.apache.nemo.common.dag.Edge;
+import org.apache.nemo.common.ir.IdManager;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.ExecutionPropertyMap;
+import org.apache.nemo.common.ir.vertex.IRVertex;
 
 import org.apache.commons.lang3.builder.HashCodeBuilder;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/AdditionalOutputTagProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/AdditionalOutputTagProperty.java
index db1b3717e..3148ac8b6 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/AdditionalOutputTagProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/AdditionalOutputTagProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * Additional Output Tag Execution Property for edge that contains tag for additional outputs.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/BroadcastVariableIdProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/BroadcastVariableIdProperty.java
index 0461763fc..800feaf02 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/BroadcastVariableIdProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/BroadcastVariableIdProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 import java.io.Serializable;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/CacheIDProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/CacheIDProperty.java
index 5e97fab35..8d5ce8f5d 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/CacheIDProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/CacheIDProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 import java.util.UUID;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/CommunicationPatternProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/CommunicationPatternProperty.java
index ae149fe3a..54f62caf9 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/CommunicationPatternProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/CommunicationPatternProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 // TODO #492: modularizing runtime components for data communication pattern.
 /**
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/CompressionProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/CompressionProperty.java
index cb50ef35c..34499e719 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/CompressionProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/CompressionProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * Compression ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataFlowProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataFlowProperty.java
index fb9312d9a..328955879 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataFlowProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataFlowProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * DataFlowModel ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataPersistenceProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataPersistenceProperty.java
index a1d96b282..e40d20bba 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataPersistenceProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataPersistenceProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * Data persistence ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataSkewMetricProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataSkewMetricProperty.java
index a5f37a91e..0e023173d 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataSkewMetricProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataSkewMetricProperty.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.DataSkewMetricFactory;
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.DataSkewMetricFactory;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * DataSkewMetric ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataStoreProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataStoreProperty.java
index 6e87844fb..0f5145a8c 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataStoreProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DataStoreProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * DataStore ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DecoderProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DecoderProperty.java
index 7ef507a8a..217178f94 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DecoderProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DecoderProperty.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.coder.DecoderFactory;
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.coder.DecoderFactory;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * Decoder ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DecompressionProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DecompressionProperty.java
index bfd09e08c..835258815 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DecompressionProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DecompressionProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * Decompression ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DuplicateEdgeGroupProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DuplicateEdgeGroupProperty.java
index 8a5f980e2..c03ecb418 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DuplicateEdgeGroupProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DuplicateEdgeGroupProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * Invariant data ExecutionProperty. Use to indicate same data edge when unrolling loop vertex.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DuplicateEdgeGroupPropertyValue.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DuplicateEdgeGroupPropertyValue.java
index ec22a22f0..7503b7c89 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DuplicateEdgeGroupPropertyValue.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/DuplicateEdgeGroupPropertyValue.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
 import java.io.Serializable;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/EncoderProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/EncoderProperty.java
index f214f17fb..79d3146d1 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/EncoderProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/EncoderProperty.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.coder.EncoderFactory;
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.coder.EncoderFactory;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * EncoderFactory ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/KeyDecoderProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/KeyDecoderProperty.java
index 0a567ec4f..21a828bc0 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/KeyDecoderProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/KeyDecoderProperty.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.coder.DecoderFactory;
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.coder.DecoderFactory;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * KeyDecoder ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/KeyEncoderProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/KeyEncoderProperty.java
index c76748439..72d1c37a2 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/KeyEncoderProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/KeyEncoderProperty.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.coder.EncoderFactory;
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.coder.EncoderFactory;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * KeyEncoder ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/KeyExtractorProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/KeyExtractorProperty.java
index 7adfc2957..017b35624 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/KeyExtractorProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/KeyExtractorProperty.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.KeyExtractor;
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.KeyExtractor;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * KeyExtractor ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/MetricCollectionProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/MetricCollectionProperty.java
index d3892796a..ec12be42d 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/MetricCollectionProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/MetricCollectionProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * MetricCollection ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/PartitionerProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/PartitionerProperty.java
index 6c7b3c3ef..eb5ed2189 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/PartitionerProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/edge/executionproperty/PartitionerProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.edge.executionproperty;
+package org.apache.nemo.common.ir.edge.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
 
 /**
  * Partitioner ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/AssociatedProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/AssociatedProperty.java
index ceebd8619..d78c693ad 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/AssociatedProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/AssociatedProperty.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.executionproperty;
+package org.apache.nemo.common.ir.executionproperty;
 
 import java.lang.annotation.*;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/EdgeExecutionProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/EdgeExecutionProperty.java
index 906b72a46..6f330727d 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/EdgeExecutionProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/EdgeExecutionProperty.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.executionproperty;
+package org.apache.nemo.common.ir.executionproperty;
 
 import java.io.Serializable;
 
 /**
- * {@link ExecutionProperty} for {@link edu.snu.nemo.common.ir.edge.IREdge}.
+ * {@link ExecutionProperty} for {@link org.apache.nemo.common.ir.edge.IREdge}.
  * @param <T> Type of the value.
  */
 public abstract class EdgeExecutionProperty<T extends Serializable> extends ExecutionProperty<T> {
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/ExecutionProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/ExecutionProperty.java
index 87efce605..722ccbba0 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/ExecutionProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/ExecutionProperty.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.executionproperty;
+package org.apache.nemo.common.ir.executionproperty;
 
 import java.io.Serializable;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/ExecutionPropertyMap.java b/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/ExecutionPropertyMap.java
index 869f72559..ac62aa67f 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/ExecutionPropertyMap.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/ExecutionPropertyMap.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.executionproperty;
-
-import edu.snu.nemo.common.coder.DecoderFactory;
-import edu.snu.nemo.common.coder.EncoderFactory;
-import edu.snu.nemo.common.exception.CompileTimeOptimizationException;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.*;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+package org.apache.nemo.common.ir.executionproperty;
+
+import org.apache.nemo.common.coder.DecoderFactory;
+import org.apache.nemo.common.coder.EncoderFactory;
+import org.apache.nemo.common.exception.CompileTimeOptimizationException;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.*;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
 
 import com.google.common.annotations.VisibleForTesting;
 import org.apache.commons.lang3.builder.HashCodeBuilder;
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/VertexExecutionProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/VertexExecutionProperty.java
index 4bdd2e6b0..6c4ce1da8 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/VertexExecutionProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/executionproperty/VertexExecutionProperty.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.executionproperty;
+package org.apache.nemo.common.ir.executionproperty;
 
 import java.io.Serializable;
 
 /**
- * {@link ExecutionProperty} for {@link edu.snu.nemo.common.ir.vertex.IRVertex}.
+ * {@link ExecutionProperty} for {@link org.apache.nemo.common.ir.vertex.IRVertex}.
  * @param <T> Type of the value.
  */
 public abstract class VertexExecutionProperty<T extends Serializable> extends ExecutionProperty<T> {
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/CachedSourceVertex.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/CachedSourceVertex.java
index ee1af03d2..3a36c5030 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/CachedSourceVertex.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/CachedSourceVertex.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex;
+package org.apache.nemo.common.ir.vertex;
 
-import edu.snu.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.Readable;
 
 import java.io.IOException;
 import java.util.ArrayList;
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/IRVertex.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/IRVertex.java
index 5810233af..69aba942c 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/IRVertex.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/IRVertex.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex;
+package org.apache.nemo.common.ir.vertex;
 
-import edu.snu.nemo.common.ir.IdManager;
-import edu.snu.nemo.common.ir.executionproperty.ExecutionPropertyMap;
-import edu.snu.nemo.common.dag.Vertex;
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
-import edu.snu.nemo.common.Cloneable;
+import org.apache.nemo.common.ir.IdManager;
+import org.apache.nemo.common.ir.executionproperty.ExecutionPropertyMap;
+import org.apache.nemo.common.dag.Vertex;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.Cloneable;
 
 import java.io.Serializable;
 import java.util.Optional;
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/InMemorySourceVertex.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/InMemorySourceVertex.java
index 99a418350..a79415ae4 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/InMemorySourceVertex.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/InMemorySourceVertex.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex;
+package org.apache.nemo.common.ir.vertex;
 
-import edu.snu.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.Readable;
 
 import java.util.ArrayList;
 import java.util.Iterator;
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/LoopVertex.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/LoopVertex.java
index e07320ed5..67e2fe127 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/LoopVertex.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/LoopVertex.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex;
-
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupPropertyValue;
+package org.apache.nemo.common.ir.vertex;
+
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupPropertyValue;
 
 import java.io.Serializable;
 import java.util.*;
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/OperatorVertex.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/OperatorVertex.java
index 636b8e97a..ab28c9075 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/OperatorVertex.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/OperatorVertex.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex;
+package org.apache.nemo.common.ir.vertex;
 
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 
 /**
  * IRVertex that transforms input data.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/SourceVertex.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/SourceVertex.java
index f1472d880..f723a4d3c 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/SourceVertex.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/SourceVertex.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex;
+package org.apache.nemo.common.ir.vertex;
 
-import edu.snu.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.Readable;
 
 import java.util.List;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ClonedSchedulingProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ClonedSchedulingProperty.java
index 6a24c6d95..f1c42c77f 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ClonedSchedulingProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ClonedSchedulingProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex.executionproperty;
+package org.apache.nemo.common.ir.vertex.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
 
 import java.io.Serializable;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/DynamicOptimizationProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/DynamicOptimizationProperty.java
index 7fb808f4b..7eb7bfc80 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/DynamicOptimizationProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/DynamicOptimizationProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex.executionproperty;
+package org.apache.nemo.common.ir.vertex.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
 
 /**
  * DynamicOptimizationType ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/IgnoreSchedulingTempDataReceiverProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/IgnoreSchedulingTempDataReceiverProperty.java
index 45233bfc3..ba2d48ad7 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/IgnoreSchedulingTempDataReceiverProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/IgnoreSchedulingTempDataReceiverProperty.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex.executionproperty;
+package org.apache.nemo.common.ir.vertex.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
 
 /**
  * A property represents that a vertex annotated with this property doesn't process any data and
  * should be regarded as a kind of "marker" to construct a temporary edge that contains some data that
  * have to be written before it's usage is not determined (e.g., for caching).
  * The written data in the edge toward the vertex annotated with this property will be used when
- * the usage is determined by using {@link edu.snu.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupProperty}.
+ * the usage is determined by using {@link org.apache.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupProperty}.
  * In that case, the edge will be regarded as a representative edge.
  * Attaching this property makes runtime to not schedule this vertex.
  */
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ParallelismProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ParallelismProperty.java
index fdd089384..e3292de49 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ParallelismProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ParallelismProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex.executionproperty;
+package org.apache.nemo.common.ir.vertex.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
 
 /**
  * Parallelism ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceLocalityProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceLocalityProperty.java
index a94f25e43..b57b62431 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceLocalityProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceLocalityProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex.executionproperty;
+package org.apache.nemo.common.ir.vertex.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
 
 /**
  * This property decides whether or not to schedule this vertex only on executors where
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourcePriorityProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourcePriorityProperty.java
index 26bfd34b7..f11c33b51 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourcePriorityProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourcePriorityProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex.executionproperty;
+package org.apache.nemo.common.ir.vertex.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
 
 /**
  * ExecutionPlacement ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceSiteProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceSiteProperty.java
index c42f74172..9f84f83c8 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceSiteProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceSiteProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex.executionproperty;
+package org.apache.nemo.common.ir.vertex.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
 
 import java.util.HashMap;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceSkewedDataProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceSkewedDataProperty.java
index dadc6b334..69c87b1a6 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceSkewedDataProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceSkewedDataProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex.executionproperty;
+package org.apache.nemo.common.ir.vertex.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
 
 /**
  * This property decides whether or not to handle skew when scheduling this vertex.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceSlotProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceSlotProperty.java
index f82d95894..dc6bd35c0 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceSlotProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ResourceSlotProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex.executionproperty;
+package org.apache.nemo.common.ir.vertex.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
 
 /**
  * This property decides whether or not to comply to slot restrictions when scheduling this vertex.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ScheduleGroupProperty.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ScheduleGroupProperty.java
index 3b521cbb7..228c24493 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ScheduleGroupProperty.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/executionproperty/ScheduleGroupProperty.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex.executionproperty;
+package org.apache.nemo.common.ir.vertex.executionproperty;
 
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
 
 /**
  * ScheduleGroup ExecutionProperty.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/AggregateMetricTransform.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/AggregateMetricTransform.java
index 8b81728c0..c546184c5 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/AggregateMetricTransform.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/AggregateMetricTransform.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex.transform;
+package org.apache.nemo.common.ir.vertex.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.OutputCollector;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/MetricCollectTransform.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/MetricCollectTransform.java
index c696d23a4..fd0528b09 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/MetricCollectTransform.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/MetricCollectTransform.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex.transform;
+package org.apache.nemo.common.ir.vertex.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.OutputCollector;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/RelayTransform.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/RelayTransform.java
index d02806363..65c927b54 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/RelayTransform.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/RelayTransform.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex.transform;
+package org.apache.nemo.common.ir.vertex.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.OutputCollector;
 
 /**
  * A {@link Transform} relays input data from upstream vertex to downstream vertex promptly.
diff --git a/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/Transform.java b/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/Transform.java
index b7bb26cfd..87db84f86 100644
--- a/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/Transform.java
+++ b/common/src/main/java/edu/snu/nemo/common/ir/vertex/transform/Transform.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.vertex.transform;
+package org.apache.nemo.common.ir.vertex.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.OutputCollector;
 import java.io.Serializable;
 import java.util.Map;
 import java.util.Optional;
diff --git a/common/src/main/java/edu/snu/nemo/common/pass/Pass.java b/common/src/main/java/edu/snu/nemo/common/pass/Pass.java
index 6500b5b6b..78accda94 100644
--- a/common/src/main/java/edu/snu/nemo/common/pass/Pass.java
+++ b/common/src/main/java/edu/snu/nemo/common/pass/Pass.java
@@ -14,11 +14,11 @@
  * limitations under the License.
  */
 
-package edu.snu.nemo.common.pass;
+package org.apache.nemo.common.pass;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
 
 import java.io.Serializable;
 import java.util.function.Predicate;
diff --git a/common/src/main/java/edu/snu/nemo/common/test/ArgBuilder.java b/common/src/main/java/edu/snu/nemo/common/test/ArgBuilder.java
index 9b11b5600..32bdd7a9d 100644
--- a/common/src/main/java/edu/snu/nemo/common/test/ArgBuilder.java
+++ b/common/src/main/java/edu/snu/nemo/common/test/ArgBuilder.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.test;
+package org.apache.nemo.common.test;
 
 import java.util.ArrayList;
 import java.util.Arrays;
diff --git a/common/src/main/java/edu/snu/nemo/common/test/EmptyComponents.java b/common/src/main/java/edu/snu/nemo/common/test/EmptyComponents.java
index e1ae497da..ec0f87f09 100644
--- a/common/src/main/java/edu/snu/nemo/common/test/EmptyComponents.java
+++ b/common/src/main/java/edu/snu/nemo/common/test/EmptyComponents.java
@@ -13,24 +13,24 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.test;
-
-import edu.snu.nemo.common.KeyExtractor;
-import edu.snu.nemo.common.coder.DecoderFactory;
-import edu.snu.nemo.common.coder.EncoderFactory;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.Readable;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecoderProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.EncoderProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.KeyExtractorProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.SourceVertex;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+package org.apache.nemo.common.test;
+
+import org.apache.nemo.common.KeyExtractor;
+import org.apache.nemo.common.coder.DecoderFactory;
+import org.apache.nemo.common.coder.EncoderFactory;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DecoderProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.EncoderProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.KeyExtractorProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.SourceVertex;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 import org.apache.beam.sdk.values.KV;
 
 import java.util.ArrayList;
diff --git a/common/src/main/java/edu/snu/nemo/common/test/ExampleTestUtil.java b/common/src/main/java/edu/snu/nemo/common/test/ExampleTestUtil.java
index 84866f42c..157e9bf2e 100644
--- a/common/src/main/java/edu/snu/nemo/common/test/ExampleTestUtil.java
+++ b/common/src/main/java/edu/snu/nemo/common/test/ExampleTestUtil.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.test;
+package org.apache.nemo.common.test;
 
 import java.io.IOException;
 import java.nio.file.Files;
diff --git a/common/src/main/resources/log4j.properties b/common/src/main/resources/log4j.properties
index 55bcb7905..380aba6f2 100644
--- a/common/src/main/resources/log4j.properties
+++ b/common/src/main/resources/log4j.properties
@@ -14,8 +14,8 @@
 #
 log4j.rootLogger=INFO, STDOUT
 
-log4j.logger.edu.snu.nemo.runtime.master.MetricManagerMaster=INFO, METRIC
-log4j.additivity.edu.snu.nemo.runtime.master.MetricManagerMaster=false
+log4j.logger.org.apache.nemo.runtime.master.MetricManagerMaster=INFO, METRIC
+log4j.additivity.org.apache.nemo.runtime.master.MetricManagerMaster=false
 
 log4j.appender.STDOUT=org.apache.log4j.ConsoleAppender
 log4j.appender.STDOUT.layout=org.apache.log4j.PatternLayout
diff --git a/common/src/test/java/edu/snu/nemo/common/DAGTest.java b/common/src/test/java/edu/snu/nemo/common/DAGTest.java
index 11932be2d..0f6679459 100644
--- a/common/src/test/java/edu/snu/nemo/common/DAGTest.java
+++ b/common/src/test/java/edu/snu/nemo/common/DAGTest.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common;
+package org.apache.nemo.common;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.Edge;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.dag.Vertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.Edge;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.dag.Vertex;
 import org.junit.Before;
 import org.junit.Test;
 
diff --git a/common/src/test/java/edu/snu/nemo/common/PairTest.java b/common/src/test/java/edu/snu/nemo/common/PairTest.java
index 2247d6e50..0bbbbd381 100644
--- a/common/src/test/java/edu/snu/nemo/common/PairTest.java
+++ b/common/src/test/java/edu/snu/nemo/common/PairTest.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common;
+package org.apache.nemo.common;
 
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.test.EmptyComponents;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.test.EmptyComponents;
 import org.junit.Test;
 
 import static org.junit.Assert.assertEquals;
diff --git a/common/src/test/java/edu/snu/nemo/common/StateMachineTest.java b/common/src/test/java/edu/snu/nemo/common/StateMachineTest.java
index 7f49af595..2884ad12f 100644
--- a/common/src/test/java/edu/snu/nemo/common/StateMachineTest.java
+++ b/common/src/test/java/edu/snu/nemo/common/StateMachineTest.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common;
+package org.apache.nemo.common;
 
-import edu.snu.nemo.common.StateMachine;
-import edu.snu.nemo.common.exception.IllegalStateTransitionException;
+import org.apache.nemo.common.StateMachine;
+import org.apache.nemo.common.exception.IllegalStateTransitionException;
 import org.junit.Before;
 import org.junit.Test;
 
diff --git a/common/src/test/java/edu/snu/nemo/common/coder/CoderFactoryTest.java b/common/src/test/java/edu/snu/nemo/common/coder/CoderFactoryTest.java
index 9f836da37..9a46a49e9 100644
--- a/common/src/test/java/edu/snu/nemo/common/coder/CoderFactoryTest.java
+++ b/common/src/test/java/edu/snu/nemo/common/coder/CoderFactoryTest.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package edu.snu.nemo.common.coder;
+package org.apache.nemo.common.coder;
 
 import org.junit.Assert;
 import org.junit.Test;
diff --git a/common/src/test/java/edu/snu/nemo/common/ir/LoopVertexTest.java b/common/src/test/java/edu/snu/nemo/common/ir/LoopVertexTest.java
index d3293c62c..dacb74ffd 100644
--- a/common/src/test/java/edu/snu/nemo/common/ir/LoopVertexTest.java
+++ b/common/src/test/java/edu/snu/nemo/common/ir/LoopVertexTest.java
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir;
+package org.apache.nemo.common.ir;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.LoopVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.test.EmptyComponents;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.LoopVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.test.EmptyComponents;
 import org.junit.Before;
 import org.junit.Test;
 
diff --git a/common/src/test/java/edu/snu/nemo/common/ir/executionproperty/ExecutionPropertyMapTest.java b/common/src/test/java/edu/snu/nemo/common/ir/executionproperty/ExecutionPropertyMapTest.java
index fc2dc0c1a..2f39772d3 100644
--- a/common/src/test/java/edu/snu/nemo/common/ir/executionproperty/ExecutionPropertyMapTest.java
+++ b/common/src/test/java/edu/snu/nemo/common/ir/executionproperty/ExecutionPropertyMapTest.java
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.common.ir.executionproperty;
+package org.apache.nemo.common.ir.executionproperty;
 
-import edu.snu.nemo.common.coder.DecoderFactory;
-import edu.snu.nemo.common.coder.EncoderFactory;
-import edu.snu.nemo.common.exception.CompileTimeOptimizationException;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.*;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.common.test.EmptyComponents;
+import org.apache.nemo.common.coder.DecoderFactory;
+import org.apache.nemo.common.coder.EncoderFactory;
+import org.apache.nemo.common.exception.CompileTimeOptimizationException;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.*;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.common.test.EmptyComponents;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
diff --git a/compiler/backend/pom.xml b/compiler/backend/pom.xml
index 8b6c5bc99..165b4a8ea 100644
--- a/compiler/backend/pom.xml
+++ b/compiler/backend/pom.xml
@@ -19,7 +19,7 @@ limitations under the License.
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <artifactId>nemo-project</artifactId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../../</relativePath>
@@ -37,17 +37,17 @@ limitations under the License.
 
     <dependencies>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-common</artifactId>
             <version>${project.version}</version>
         </dependency>
 	    <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-runtime-common</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-compiler-optimizer</artifactId>
             <version>${project.version}</version>
             <scope>test</scope>
diff --git a/compiler/backend/src/main/java/edu/snu/nemo/compiler/backend/Backend.java b/compiler/backend/src/main/java/edu/snu/nemo/compiler/backend/Backend.java
index d49c1b991..e8a7cff0e 100644
--- a/compiler/backend/src/main/java/edu/snu/nemo/compiler/backend/Backend.java
+++ b/compiler/backend/src/main/java/edu/snu/nemo/compiler/backend/Backend.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.backend;
+package org.apache.nemo.compiler.backend;
 
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.compiler.backend.nemo.NemoBackend;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.compiler.backend.nemo.NemoBackend;
 import org.apache.reef.tang.annotations.DefaultImplementation;
 
 /**
diff --git a/compiler/backend/src/main/java/edu/snu/nemo/compiler/backend/nemo/NemoBackend.java b/compiler/backend/src/main/java/edu/snu/nemo/compiler/backend/nemo/NemoBackend.java
index 2082f8065..392d7cdb7 100644
--- a/compiler/backend/src/main/java/edu/snu/nemo/compiler/backend/nemo/NemoBackend.java
+++ b/compiler/backend/src/main/java/edu/snu/nemo/compiler/backend/nemo/NemoBackend.java
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.backend.nemo;
+package org.apache.nemo.compiler.backend.nemo;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.compiler.backend.Backend;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlanGenerator;
-import edu.snu.nemo.runtime.common.plan.Stage;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.compiler.backend.Backend;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.common.plan.PhysicalPlanGenerator;
+import org.apache.nemo.runtime.common.plan.Stage;
+import org.apache.nemo.runtime.common.plan.StageEdge;
 
 import javax.inject.Inject;
 
diff --git a/compiler/backend/src/test/java/edu/snu/nemo/compiler/backend/nemo/NemoBackendTest.java b/compiler/backend/src/test/java/edu/snu/nemo/compiler/backend/nemo/NemoBackendTest.java
index 2a93cf16a..4cbd2aa55 100644
--- a/compiler/backend/src/test/java/edu/snu/nemo/compiler/backend/nemo/NemoBackendTest.java
+++ b/compiler/backend/src/test/java/edu/snu/nemo/compiler/backend/nemo/NemoBackendTest.java
@@ -13,24 +13,24 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.backend.nemo;
+package org.apache.nemo.compiler.backend.nemo;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.test.EmptyComponents;
-import edu.snu.nemo.compiler.optimizer.policy.TransientResourcePolicy;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.test.EmptyComponents;
+import org.apache.nemo.compiler.optimizer.policy.TransientResourcePolicy;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
 import org.junit.Before;
 import org.junit.Test;
 
-import static edu.snu.nemo.common.dag.DAG.EMPTY_DAG_DIRECTORY;
+import static org.apache.nemo.common.dag.DAG.EMPTY_DAG_DIRECTORY;
 import static org.junit.Assert.assertEquals;
 
 /**
diff --git a/compiler/frontend/beam/pom.xml b/compiler/frontend/beam/pom.xml
index 5a7c504ac..a8ad61d38 100644
--- a/compiler/frontend/beam/pom.xml
+++ b/compiler/frontend/beam/pom.xml
@@ -19,7 +19,7 @@ limitations under the License.
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <artifactId>nemo-project</artifactId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../../../</relativePath>
@@ -37,12 +37,12 @@ limitations under the License.
 
     <dependencies>
 	    <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-common</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-client</artifactId>
             <version>${project.version}</version>
         </dependency>
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/BeamKeyExtractor.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/BeamKeyExtractor.java
index 8e1bf271b..c3f4bbca9 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/BeamKeyExtractor.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/BeamKeyExtractor.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam;
+package org.apache.nemo.compiler.frontend.beam;
 
-import edu.snu.nemo.common.KeyExtractor;
+import org.apache.nemo.common.KeyExtractor;
 import org.apache.beam.sdk.values.KV;
 
 /**
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/BeamStateTranslator.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/BeamStateTranslator.java
index 3f420e891..497c89ac9 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/BeamStateTranslator.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/BeamStateTranslator.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam;
+package org.apache.nemo.compiler.frontend.beam;
 
-import edu.snu.nemo.client.StateTranslator;
-import edu.snu.nemo.runtime.common.state.PlanState;
+import org.apache.nemo.client.StateTranslator;
+import org.apache.nemo.runtime.common.state.PlanState;
 
 import static org.apache.beam.sdk.PipelineResult.State.*;
 
 /**
- * A {@link edu.snu.nemo.client.StateTranslator} for Beam.
+ * A {@link org.apache.nemo.client.StateTranslator} for Beam.
  * It provides the translation between the state of job and Beam pipeline.
  */
 public final class BeamStateTranslator implements StateTranslator {
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/NemoPipelineOptions.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/NemoPipelineOptions.java
index 596579b6b..f548b7444 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/NemoPipelineOptions.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/NemoPipelineOptions.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam;
+package org.apache.nemo.compiler.frontend.beam;
 
 import org.apache.beam.sdk.options.PipelineOptions;
 
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/NemoPipelineResult.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/NemoPipelineResult.java
index cf0ab51fb..259eadd93 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/NemoPipelineResult.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/NemoPipelineResult.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam;
+package org.apache.nemo.compiler.frontend.beam;
 
-import edu.snu.nemo.client.ClientEndpoint;
+import org.apache.nemo.client.ClientEndpoint;
 import org.apache.beam.sdk.PipelineResult;
 import org.apache.beam.sdk.metrics.MetricResults;
 import org.joda.time.Duration;
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/NemoPipelineRunner.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/NemoPipelineRunner.java
index 2342dc28b..e3043bdf2 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/NemoPipelineRunner.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/NemoPipelineRunner.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam;
+package org.apache.nemo.compiler.frontend.beam;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
 import org.apache.beam.sdk.Pipeline;
 import org.apache.beam.sdk.PipelineRunner;
 import org.apache.beam.sdk.options.PipelineOptions;
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/PipelineTranslator.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/PipelineTranslator.java
index d334d1513..d06ee6759 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/PipelineTranslator.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/PipelineTranslator.java
@@ -13,21 +13,21 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam;
-
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.*;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.LoopVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
-import edu.snu.nemo.compiler.frontend.beam.PipelineVisitor.*;
-import edu.snu.nemo.compiler.frontend.beam.coder.BeamDecoderFactory;
-import edu.snu.nemo.compiler.frontend.beam.coder.BeamEncoderFactory;
-import edu.snu.nemo.compiler.frontend.beam.source.BeamBoundedSourceVertex;
-import edu.snu.nemo.compiler.frontend.beam.transform.*;
+package org.apache.nemo.compiler.frontend.beam;
+
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.*;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.LoopVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.compiler.frontend.beam.PipelineVisitor.*;
+import org.apache.nemo.compiler.frontend.beam.coder.BeamDecoderFactory;
+import org.apache.nemo.compiler.frontend.beam.coder.BeamEncoderFactory;
+import org.apache.nemo.compiler.frontend.beam.source.BeamBoundedSourceVertex;
+import org.apache.nemo.compiler.frontend.beam.transform.*;
 import org.apache.beam.sdk.coders.*;
 import org.apache.beam.sdk.io.Read;
 import org.apache.beam.sdk.options.PipelineOptions;
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/PipelineVisitor.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/PipelineVisitor.java
index 55be86562..6241f29cb 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/PipelineVisitor.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/PipelineVisitor.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam;
+package org.apache.nemo.compiler.frontend.beam;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.dag.Edge;
-import edu.snu.nemo.common.dag.Vertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.dag.Edge;
+import org.apache.nemo.common.dag.Vertex;
 import org.apache.beam.sdk.Pipeline;
 import org.apache.beam.sdk.runners.TransformHierarchy;
 import org.apache.beam.sdk.transforms.ParDo;
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/BeamDecoderFactory.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/BeamDecoderFactory.java
index f2aedaab2..97ccb0359 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/BeamDecoderFactory.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/BeamDecoderFactory.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam.coder;
+package org.apache.nemo.compiler.frontend.beam.coder;
 
-import edu.snu.nemo.common.coder.DecoderFactory;
+import org.apache.nemo.common.coder.DecoderFactory;
 import org.apache.beam.sdk.coders.Coder;
 import org.apache.beam.sdk.coders.CoderException;
 import org.apache.beam.sdk.coders.VoidCoder;
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/BeamEncoderFactory.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/BeamEncoderFactory.java
index f67b96c1b..b862f3149 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/BeamEncoderFactory.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/BeamEncoderFactory.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam.coder;
+package org.apache.nemo.compiler.frontend.beam.coder;
 
-import edu.snu.nemo.common.coder.EncoderFactory;
+import org.apache.nemo.common.coder.EncoderFactory;
 import org.apache.beam.sdk.coders.Coder;
 import org.apache.beam.sdk.coders.CoderException;
 import org.apache.beam.sdk.coders.VoidCoder;
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/FloatArrayCoder.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/FloatArrayCoder.java
index fa5d38040..4ff0a8d3a 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/FloatArrayCoder.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/FloatArrayCoder.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam.coder;
+package org.apache.nemo.compiler.frontend.beam.coder;
 
 import org.apache.beam.sdk.coders.AtomicCoder;
 
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/IntArrayCoder.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/IntArrayCoder.java
index c180bd674..687898838 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/IntArrayCoder.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/coder/IntArrayCoder.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam.coder;
+package org.apache.nemo.compiler.frontend.beam.coder;
 
 import org.apache.beam.sdk.coders.AtomicCoder;
 
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/source/BeamBoundedSourceVertex.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/source/BeamBoundedSourceVertex.java
index 550efebcf..0472e1c6c 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/source/BeamBoundedSourceVertex.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/source/BeamBoundedSourceVertex.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam.source;
+package org.apache.nemo.compiler.frontend.beam.source;
 
-import edu.snu.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.Readable;
 
 import java.io.IOException;
 import java.lang.reflect.Field;
@@ -23,7 +23,7 @@
 import java.util.Arrays;
 import java.util.List;
 
-import edu.snu.nemo.common.ir.vertex.SourceVertex;
+import org.apache.nemo.common.ir.vertex.SourceVertex;
 import org.apache.beam.sdk.io.BoundedSource;
 import org.apache.beam.sdk.io.hadoop.inputformat.HadoopInputFormatIO;
 import org.apache.hadoop.mapreduce.InputSplit;
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/CreateViewTransform.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/CreateViewTransform.java
index b4ab6c612..d4aa1951b 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/CreateViewTransform.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/CreateViewTransform.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam.transform;
+package org.apache.nemo.compiler.frontend.beam.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 import org.apache.beam.sdk.transforms.Materializations;
 import org.apache.beam.sdk.transforms.ViewFn;
 import org.apache.beam.sdk.values.KV;
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/DoTransform.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/DoTransform.java
index 529e83b6d..3a36ec0d8 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/DoTransform.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/DoTransform.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam.transform;
+package org.apache.nemo.compiler.frontend.beam.transform;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
-import edu.snu.nemo.runtime.executor.datatransfer.OutputCollectorImpl;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.runtime.executor.datatransfer.OutputCollectorImpl;
 import org.apache.beam.sdk.options.PipelineOptions;
 import org.apache.beam.sdk.state.State;
 import org.apache.beam.sdk.state.TimeDomain;
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/FlattenTransform.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/FlattenTransform.java
index 03c53e37f..dd23c9b43 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/FlattenTransform.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/FlattenTransform.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam.transform;
+package org.apache.nemo.compiler.frontend.beam.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 
 import java.util.ArrayList;
 
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/GroupByKeyTransform.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/GroupByKeyTransform.java
index 1d165a044..b0e64290a 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/GroupByKeyTransform.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/GroupByKeyTransform.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam.transform;
+package org.apache.nemo.compiler.frontend.beam.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 import org.apache.beam.sdk.values.KV;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/LoopCompositeTransform.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/LoopCompositeTransform.java
index 027afa8c7..98fa15643 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/LoopCompositeTransform.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/LoopCompositeTransform.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam.transform;
+package org.apache.nemo.compiler.frontend.beam.transform;
 
 import org.apache.beam.sdk.transforms.PTransform;
 import org.apache.beam.sdk.values.PInput;
diff --git a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/WindowTransform.java b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/WindowTransform.java
index f686eefcf..20bc7238d 100644
--- a/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/WindowTransform.java
+++ b/compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/transform/WindowTransform.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam.transform;
+package org.apache.nemo.compiler.frontend.beam.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 import org.apache.beam.sdk.transforms.windowing.WindowFn;
 
 /**
diff --git a/compiler/frontend/spark/pom.xml b/compiler/frontend/spark/pom.xml
index 14fc03914..b352b396d 100644
--- a/compiler/frontend/spark/pom.xml
+++ b/compiler/frontend/spark/pom.xml
@@ -19,7 +19,7 @@ limitations under the License.
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <artifactId>nemo-project</artifactId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../../../</relativePath>
@@ -37,12 +37,12 @@ limitations under the License.
 
     <dependencies>
 	    <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-common</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-client</artifactId>
             <version>${project.version}</version>
         </dependency>
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/SparkBroadcastVariables.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/SparkBroadcastVariables.java
index bcfdcc83a..f63eba093 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/SparkBroadcastVariables.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/SparkBroadcastVariables.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark;
+package org.apache.nemo.compiler.frontend.spark;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/SparkKeyExtractor.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/SparkKeyExtractor.java
index 3d5a6104d..b4e2a29a2 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/SparkKeyExtractor.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/SparkKeyExtractor.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark;
+package org.apache.nemo.compiler.frontend.spark;
 
-import edu.snu.nemo.common.KeyExtractor;
+import org.apache.nemo.common.KeyExtractor;
 import scala.Tuple2;
 
 /**
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/coder/SparkDecoderFactory.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/coder/SparkDecoderFactory.java
index 605b76626..abe0a7e99 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/coder/SparkDecoderFactory.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/coder/SparkDecoderFactory.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.coder;
+package org.apache.nemo.compiler.frontend.spark.coder;
 
-import edu.snu.nemo.common.coder.DecoderFactory;
+import org.apache.nemo.common.coder.DecoderFactory;
 import org.apache.spark.serializer.DeserializationStream;
 import org.apache.spark.serializer.Serializer;
 import org.apache.spark.serializer.SerializerInstance;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/coder/SparkEncoderFactory.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/coder/SparkEncoderFactory.java
index 970a46c83..545734370 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/coder/SparkEncoderFactory.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/coder/SparkEncoderFactory.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.coder;
+package org.apache.nemo.compiler.frontend.spark.coder;
 
-import edu.snu.nemo.common.coder.EncoderFactory;
+import org.apache.nemo.common.coder.EncoderFactory;
 import org.apache.spark.serializer.SerializationStream;
 import org.apache.spark.serializer.Serializer;
 import org.apache.spark.serializer.SerializerInstance;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/JavaSparkContext.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/JavaSparkContext.java
index 049410da9..ca1c762fd 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/JavaSparkContext.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/JavaSparkContext.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.core;
+package org.apache.nemo.compiler.frontend.spark.core;
 
-import edu.snu.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
+import org.apache.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
 import org.apache.spark.SparkContext;
 
 import java.util.List;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/SparkBroadcast.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/SparkBroadcast.java
index 511f78b29..47934e300 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/SparkBroadcast.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/SparkBroadcast.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.core;
+package org.apache.nemo.compiler.frontend.spark.core;
 
-import edu.snu.nemo.runtime.executor.data.BroadcastManagerWorker;
+import org.apache.nemo.runtime.executor.data.BroadcastManagerWorker;
 import scala.reflect.ClassTag$;
 
 /**
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/SparkContext.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/SparkContext.java
index 79220647d..53ec35f72 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/SparkContext.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/SparkContext.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.core;
+package org.apache.nemo.compiler.frontend.spark.core;
 
-import edu.snu.nemo.compiler.frontend.spark.SparkBroadcastVariables;
-import edu.snu.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
-import edu.snu.nemo.compiler.frontend.spark.core.rdd.RDD;
+import org.apache.nemo.compiler.frontend.spark.SparkBroadcastVariables;
+import org.apache.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
+import org.apache.nemo.compiler.frontend.spark.core.rdd.RDD;
 import org.apache.spark.SparkConf;
 import org.apache.spark.broadcast.Broadcast;
 import org.slf4j.Logger;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/SparkFrontendUtils.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/SparkFrontendUtils.java
index 75d22e087..f3819b632 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/SparkFrontendUtils.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/SparkFrontendUtils.java
@@ -13,26 +13,26 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.core;
-
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecoderProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.EncoderProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.KeyExtractorProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.LoopVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.compiler.frontend.spark.SparkBroadcastVariables;
-import edu.snu.nemo.compiler.frontend.spark.SparkKeyExtractor;
-import edu.snu.nemo.compiler.frontend.spark.coder.SparkDecoderFactory;
-import edu.snu.nemo.compiler.frontend.spark.coder.SparkEncoderFactory;
-import edu.snu.nemo.compiler.frontend.spark.transform.CollectTransform;
-import edu.snu.nemo.compiler.frontend.spark.transform.GroupByKeyTransform;
-import edu.snu.nemo.compiler.frontend.spark.transform.ReduceByKeyTransform;
+package org.apache.nemo.compiler.frontend.spark.core;
+
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DecoderProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.EncoderProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.KeyExtractorProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.LoopVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.compiler.frontend.spark.SparkBroadcastVariables;
+import org.apache.nemo.compiler.frontend.spark.SparkKeyExtractor;
+import org.apache.nemo.compiler.frontend.spark.coder.SparkDecoderFactory;
+import org.apache.nemo.compiler.frontend.spark.coder.SparkEncoderFactory;
+import org.apache.nemo.compiler.frontend.spark.transform.CollectTransform;
+import org.apache.nemo.compiler.frontend.spark.transform.GroupByKeyTransform;
+import org.apache.nemo.compiler.frontend.spark.transform.ReduceByKeyTransform;
 import org.apache.spark.api.java.function.FlatMapFunction;
 import org.apache.spark.api.java.function.Function;
 import org.apache.spark.api.java.function.Function2;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/rdd/JavaPairRDD.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/rdd/JavaPairRDD.java
index f0682e113..c97acc340 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/rdd/JavaPairRDD.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/rdd/JavaPairRDD.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.core.rdd;
+package org.apache.nemo.compiler.frontend.spark.core.rdd;
 
 import org.apache.hadoop.mapred.JobConf;
 import org.apache.spark.Partitioner;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/rdd/JavaRDD.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/rdd/JavaRDD.java
index 1d1b966d6..291d538ff 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/rdd/JavaRDD.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/core/rdd/JavaRDD.java
@@ -13,19 +13,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.core.rdd;
-
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.InMemorySourceVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.compiler.frontend.spark.core.SparkFrontendUtils;
-import edu.snu.nemo.compiler.frontend.spark.source.SparkDatasetBoundedSourceVertex;
-import edu.snu.nemo.compiler.frontend.spark.source.SparkTextFileBoundedSourceVertex;
-import edu.snu.nemo.compiler.frontend.spark.sql.Dataset;
-import edu.snu.nemo.compiler.frontend.spark.sql.SparkSession;
+package org.apache.nemo.compiler.frontend.spark.core.rdd;
+
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.InMemorySourceVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.compiler.frontend.spark.core.SparkFrontendUtils;
+import org.apache.nemo.compiler.frontend.spark.source.SparkDatasetBoundedSourceVertex;
+import org.apache.nemo.compiler.frontend.spark.source.SparkTextFileBoundedSourceVertex;
+import org.apache.nemo.compiler.frontend.spark.sql.Dataset;
+import org.apache.nemo.compiler.frontend.spark.sql.SparkSession;
 import org.apache.spark.*;
 import org.apache.spark.api.java.JavaFutureAction;
 import org.apache.spark.api.java.Optional;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/source/SparkDatasetBoundedSourceVertex.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/source/SparkDatasetBoundedSourceVertex.java
index 925beb9c7..bd4cc1b89 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/source/SparkDatasetBoundedSourceVertex.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/source/SparkDatasetBoundedSourceVertex.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.source;
+package org.apache.nemo.compiler.frontend.spark.source;
 
-import edu.snu.nemo.common.ir.Readable;
-import edu.snu.nemo.common.ir.vertex.SourceVertex;
-import edu.snu.nemo.compiler.frontend.spark.sql.Dataset;
-import edu.snu.nemo.compiler.frontend.spark.sql.SparkSession;
+import org.apache.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.vertex.SourceVertex;
+import org.apache.nemo.compiler.frontend.spark.sql.Dataset;
+import org.apache.nemo.compiler.frontend.spark.sql.SparkSession;
 import org.apache.spark.*;
 import org.apache.spark.rdd.RDD;
 import scala.collection.JavaConverters;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/source/SparkSourceUtil.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/source/SparkSourceUtil.java
index aaa1713ef..55afc9b99 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/source/SparkSourceUtil.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/source/SparkSourceUtil.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.source;
+package org.apache.nemo.compiler.frontend.spark.source;
 
 import org.apache.hadoop.mapred.InputSplit;
 import org.apache.spark.Partition;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/source/SparkTextFileBoundedSourceVertex.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/source/SparkTextFileBoundedSourceVertex.java
index 957602477..1f7878068 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/source/SparkTextFileBoundedSourceVertex.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/source/SparkTextFileBoundedSourceVertex.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.source;
+package org.apache.nemo.compiler.frontend.spark.source;
 
-import edu.snu.nemo.common.ir.Readable;
-import edu.snu.nemo.common.ir.vertex.SourceVertex;
+import org.apache.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.vertex.SourceVertex;
 import org.apache.spark.*;
 import org.apache.spark.rdd.RDD;
 import scala.collection.JavaConverters;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/DataFrameReader.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/DataFrameReader.java
index bbf859db5..5d21d239a 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/DataFrameReader.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/DataFrameReader.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.sql;
+package org.apache.nemo.compiler.frontend.spark.sql;
 
 import org.apache.spark.api.java.JavaRDD;
 import org.apache.spark.rdd.RDD;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/Dataset.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/Dataset.java
index ab50be699..d7480730b 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/Dataset.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/Dataset.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.sql;
+package org.apache.nemo.compiler.frontend.spark.sql;
 
-import edu.snu.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
-import edu.snu.nemo.compiler.frontend.spark.core.rdd.RDD;
+import org.apache.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
+import org.apache.nemo.compiler.frontend.spark.core.rdd.RDD;
 import org.apache.spark.api.java.function.MapFunction;
 import org.apache.spark.api.java.function.MapPartitionsFunction;
 import org.apache.spark.sql.Column;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/NemoSparkUserFacingClass.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/NemoSparkUserFacingClass.java
index baca68342..b112293a4 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/NemoSparkUserFacingClass.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/NemoSparkUserFacingClass.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.sql;
+package org.apache.nemo.compiler.frontend.spark.sql;
 
 /**
  * Common interface for SparkSQL supporting Nemo classes containing the methods that are exposed to users.
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/SparkSession.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/SparkSession.java
index 9393ec6be..65766f1c3 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/SparkSession.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/sql/SparkSession.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.sql;
+package org.apache.nemo.compiler.frontend.spark.sql;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.compiler.frontend.spark.core.SparkContext;
-import edu.snu.nemo.conf.JobConf;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.compiler.frontend.spark.core.SparkContext;
+import org.apache.nemo.conf.JobConf;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.reef.tang.Configuration;
 import org.apache.reef.tang.Injector;
@@ -340,7 +340,7 @@ public SparkSession getOrCreate() {
         }
       }
       options.forEach(sparkConf::set);
-      final SparkContext sparkContext = new edu.snu.nemo.compiler.frontend.spark.core.SparkContext(sparkConf);
+      final SparkContext sparkContext = new org.apache.nemo.compiler.frontend.spark.core.SparkContext(sparkConf);
       super.sparkContext(sparkContext);
 
       return SparkSession.from(super.getOrCreate(), this.options);
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/CollectTransform.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/CollectTransform.java
index 2cbeb0a61..ed2c2e1d7 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/CollectTransform.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/CollectTransform.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.transform;
+package org.apache.nemo.compiler.frontend.spark.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 import org.apache.commons.lang3.SerializationUtils;
 
 import java.util.ArrayList;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/FlatMapTransform.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/FlatMapTransform.java
index 406f5dbd3..1fc2a7d63 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/FlatMapTransform.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/FlatMapTransform.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.transform;
+package org.apache.nemo.compiler.frontend.spark.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 import org.apache.spark.api.java.function.FlatMapFunction;
 
 /**
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/GroupByKeyTransform.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/GroupByKeyTransform.java
index 0703e8160..bb15ee474 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/GroupByKeyTransform.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/GroupByKeyTransform.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.transform;
+package org.apache.nemo.compiler.frontend.spark.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 import scala.Tuple2;
 
 import java.util.*;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/HDFSTextFileTransform.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/HDFSTextFileTransform.java
index 2a38b3593..8fb449b64 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/HDFSTextFileTransform.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/HDFSTextFileTransform.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.transform;
+package org.apache.nemo.compiler.frontend.spark.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 import org.apache.hadoop.fs.FSDataOutputStream;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/LocalTextFileTransform.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/LocalTextFileTransform.java
index a233a260c..0081dd740 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/LocalTextFileTransform.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/LocalTextFileTransform.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.transform;
+package org.apache.nemo.compiler.frontend.spark.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 
 import java.io.*;
 import java.util.ArrayList;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/MapToPairTransform.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/MapToPairTransform.java
index 878ffe57a..9ef7fd326 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/MapToPairTransform.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/MapToPairTransform.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.transform;
+package org.apache.nemo.compiler.frontend.spark.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 import org.apache.spark.api.java.function.PairFunction;
 import scala.Tuple2;
 
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/MapTransform.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/MapTransform.java
index 14e68895c..d75351e8e 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/MapTransform.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/MapTransform.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.transform;
+package org.apache.nemo.compiler.frontend.spark.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 import org.apache.spark.api.java.function.Function;
 
 /**
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/ReduceByKeyTransform.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/ReduceByKeyTransform.java
index 176ff778e..a6ac423a7 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/ReduceByKeyTransform.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/ReduceByKeyTransform.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.transform;
+package org.apache.nemo.compiler.frontend.spark.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 import org.apache.spark.api.java.function.Function2;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
diff --git a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/ReduceTransform.java b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/ReduceTransform.java
index e880b7260..978d26d9a 100644
--- a/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/ReduceTransform.java
+++ b/compiler/frontend/spark/src/main/java/edu/snu/nemo/compiler/frontend/spark/transform/ReduceTransform.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.transform;
+package org.apache.nemo.compiler.frontend.spark.transform;
 
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
 import org.apache.spark.api.java.function.Function2;
 
 import javax.annotation.Nullable;
diff --git a/compiler/frontend/spark/src/main/scala/edu/snu/nemo/compiler/frontend/spark/core/rdd/PairRDDFunctions.scala b/compiler/frontend/spark/src/main/scala/edu/snu/nemo/compiler/frontend/spark/core/rdd/PairRDDFunctions.scala
index e4f02a387..5a8de6482 100644
--- a/compiler/frontend/spark/src/main/scala/edu/snu/nemo/compiler/frontend/spark/core/rdd/PairRDDFunctions.scala
+++ b/compiler/frontend/spark/src/main/scala/edu/snu/nemo/compiler/frontend/spark/core/rdd/PairRDDFunctions.scala
@@ -13,19 +13,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.core.rdd
+package org.apache.nemo.compiler.frontend.spark.core.rdd
 
 import java.util
 
-import edu.snu.nemo.common.dag.DAGBuilder
-import edu.snu.nemo.common.ir.edge.IREdge
-import edu.snu.nemo.common.ir.edge.executionproperty._
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty
-import edu.snu.nemo.common.ir.vertex.{IRVertex, LoopVertex, OperatorVertex}
-import edu.snu.nemo.compiler.frontend.spark.SparkKeyExtractor
-import edu.snu.nemo.compiler.frontend.spark.coder.{SparkDecoderFactory, SparkEncoderFactory}
-import edu.snu.nemo.compiler.frontend.spark.core.SparkFrontendUtils
-import edu.snu.nemo.compiler.frontend.spark.transform.ReduceByKeyTransform
+import org.apache.nemo.common.dag.DAGBuilder
+import org.apache.nemo.common.ir.edge.IREdge
+import org.apache.nemo.common.ir.edge.executionproperty._
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty
+import org.apache.nemo.common.ir.vertex.{IRVertex, LoopVertex, OperatorVertex}
+import org.apache.nemo.compiler.frontend.spark.SparkKeyExtractor
+import org.apache.nemo.compiler.frontend.spark.coder.{SparkDecoderFactory, SparkEncoderFactory}
+import org.apache.nemo.compiler.frontend.spark.core.SparkFrontendUtils
+import org.apache.nemo.compiler.frontend.spark.transform.ReduceByKeyTransform
 import org.apache.hadoop.conf.Configuration
 import org.apache.hadoop.io.compress.CompressionCodec
 import org.apache.hadoop.mapred.{JobConf, OutputFormat}
diff --git a/compiler/frontend/spark/src/main/scala/edu/snu/nemo/compiler/frontend/spark/core/rdd/RDD.scala b/compiler/frontend/spark/src/main/scala/edu/snu/nemo/compiler/frontend/spark/core/rdd/RDD.scala
index abcebc837..8a6250c9b 100644
--- a/compiler/frontend/spark/src/main/scala/edu/snu/nemo/compiler/frontend/spark/core/rdd/RDD.scala
+++ b/compiler/frontend/spark/src/main/scala/edu/snu/nemo/compiler/frontend/spark/core/rdd/RDD.scala
@@ -13,23 +13,23 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.spark.core.rdd
+package org.apache.nemo.compiler.frontend.spark.core.rdd
 
 import java.util
 import java.util.UUID
 
-import edu.snu.nemo.client.JobLauncher
-import edu.snu.nemo.common.dag.{DAG, DAGBuilder}
-import edu.snu.nemo.common.ir.edge.IREdge
-import edu.snu.nemo.common.ir.edge.executionproperty._
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty
-import edu.snu.nemo.common.ir.vertex.executionproperty.IgnoreSchedulingTempDataReceiverProperty
-import edu.snu.nemo.common.ir.vertex.{IRVertex, LoopVertex, OperatorVertex}
-import edu.snu.nemo.common.test.EmptyComponents.EmptyTransform
-import edu.snu.nemo.compiler.frontend.spark.{SparkBroadcastVariables, SparkKeyExtractor}
-import edu.snu.nemo.compiler.frontend.spark.coder.{SparkDecoderFactory, SparkEncoderFactory}
-import edu.snu.nemo.compiler.frontend.spark.core.SparkFrontendUtils
-import edu.snu.nemo.compiler.frontend.spark.transform._
+import org.apache.nemo.client.JobLauncher
+import org.apache.nemo.common.dag.{DAG, DAGBuilder}
+import org.apache.nemo.common.ir.edge.IREdge
+import org.apache.nemo.common.ir.edge.executionproperty._
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty
+import org.apache.nemo.common.ir.vertex.executionproperty.IgnoreSchedulingTempDataReceiverProperty
+import org.apache.nemo.common.ir.vertex.{IRVertex, LoopVertex, OperatorVertex}
+import org.apache.nemo.common.test.EmptyComponents.EmptyTransform
+import org.apache.nemo.compiler.frontend.spark.{SparkBroadcastVariables, SparkKeyExtractor}
+import org.apache.nemo.compiler.frontend.spark.coder.{SparkDecoderFactory, SparkEncoderFactory}
+import org.apache.nemo.compiler.frontend.spark.core.SparkFrontendUtils
+import org.apache.nemo.compiler.frontend.spark.transform._
 import org.apache.hadoop.io.WritableFactory
 import org.apache.hadoop.io.compress.CompressionCodec
 import org.apache.spark.api.java.function.{FlatMapFunction, Function, Function2}
diff --git a/compiler/optimizer/pom.xml b/compiler/optimizer/pom.xml
index 8195526ff..562fc312f 100644
--- a/compiler/optimizer/pom.xml
+++ b/compiler/optimizer/pom.xml
@@ -19,7 +19,7 @@ limitations under the License.
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <artifactId>nemo-project</artifactId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../../</relativePath>
@@ -42,12 +42,12 @@ limitations under the License.
             <version>${commons-math.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-common</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-runtime-common</artifactId>
             <version>${project.version}</version>
         </dependency>
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/NemoOptimizer.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/NemoOptimizer.java
index 3d290e17a..62f570719 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/NemoOptimizer.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/NemoOptimizer.java
@@ -13,22 +13,22 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer;
-
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.exception.CompileTimeOptimizationException;
-import edu.snu.nemo.common.exception.DynamicOptimizationException;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.CachedSourceVertex;
-import edu.snu.nemo.common.ir.edge.executionproperty.CacheIDProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.IgnoreSchedulingTempDataReceiverProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.compiler.optimizer.policy.Policy;
-import edu.snu.nemo.conf.JobConf;
+package org.apache.nemo.compiler.optimizer;
+
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.exception.CompileTimeOptimizationException;
+import org.apache.nemo.common.exception.DynamicOptimizationException;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.CachedSourceVertex;
+import org.apache.nemo.common.ir.edge.executionproperty.CacheIDProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.IgnoreSchedulingTempDataReceiverProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.compiler.optimizer.policy.Policy;
+import org.apache.nemo.conf.JobConf;
 import net.jcip.annotations.NotThreadSafe;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.annotations.Parameter;
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/Optimizer.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/Optimizer.java
index d38865e61..9bd43e5e3 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/Optimizer.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/Optimizer.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer;
+package org.apache.nemo.compiler.optimizer;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
 import org.apache.reef.tang.annotations.DefaultImplementation;
 
 /**
  * An interface for optimizer, which manages the optimization over submitted IR DAGs through
- * {@link edu.snu.nemo.compiler.optimizer.policy.Policy}s.
+ * {@link org.apache.nemo.compiler.optimizer.policy.Policy}s.
  */
 @DefaultImplementation(NemoOptimizer.class)
 public interface Optimizer {
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/examples/MapReduceDisaggregationOptimization.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/examples/MapReduceDisaggregationOptimization.java
index 0bb5295ce..fd041a9a1 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/examples/MapReduceDisaggregationOptimization.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/examples/MapReduceDisaggregationOptimization.java
@@ -13,21 +13,21 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.examples;
+package org.apache.nemo.compiler.optimizer.examples;
 
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.test.EmptyComponents;
-import edu.snu.nemo.compiler.optimizer.policy.DisaggregationPolicy;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.test.EmptyComponents;
+import org.apache.nemo.compiler.optimizer.policy.DisaggregationPolicy;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import static edu.snu.nemo.common.dag.DAG.EMPTY_DAG_DIRECTORY;
+import static org.apache.nemo.common.dag.DAG.EMPTY_DAG_DIRECTORY;
 
 /**
  * A sample MapReduceDisaggregationOptimization application.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/CompileTimePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/CompileTimePass.java
index dfe1fd5bd..18ca76bd6 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/CompileTimePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/CompileTimePass.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime;
+package org.apache.nemo.compiler.optimizer.pass.compiletime;
 
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.executionproperty.ExecutionProperty;
-import edu.snu.nemo.common.pass.Pass;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.executionproperty.ExecutionProperty;
+import org.apache.nemo.common.pass.Pass;
 
 import java.util.Set;
 import java.util.function.Function;
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/Requires.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/Requires.java
index 1283cf1ce..a38fc0871 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/Requires.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/Requires.java
@@ -14,9 +14,9 @@
  * limitations under the License.
  */
 
-package edu.snu.nemo.compiler.optimizer.pass.compiletime;
+package org.apache.nemo.compiler.optimizer.pass.compiletime;
 
-import edu.snu.nemo.common.ir.executionproperty.ExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.ExecutionProperty;
 
 import java.lang.annotation.*;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/AggressiveSpeculativeCloningPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/AggressiveSpeculativeCloningPass.java
index 789718379..26380f982 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/AggressiveSpeculativeCloningPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/AggressiveSpeculativeCloningPass.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ClonedSchedulingProperty;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ClonedSchedulingProperty;
 
 /**
  * Speculative execution. (very aggressive, for unit tests)
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/Annotates.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/Annotates.java
index cf96224cf..4a991592e 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/Annotates.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/Annotates.java
@@ -14,9 +14,9 @@
  * limitations under the License.
  */
 
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.ir.executionproperty.ExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.ExecutionProperty;
 
 import java.lang.annotation.*;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/AnnotatingPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/AnnotatingPass.java
index c60d4f243..9b7e2cb0e 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/AnnotatingPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/AnnotatingPass.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.ir.executionproperty.ExecutionProperty;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.ir.executionproperty.ExecutionProperty;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.Arrays;
 import java.util.HashSet;
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/CompressionPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/CompressionPass.java
index 2dcd04beb..ba8020ded 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/CompressionPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/CompressionPass.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CompressionProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CompressionProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
 
 
 /**
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DecompressionPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DecompressionPass.java
index dc5f733e4..25560f1b8 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DecompressionPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DecompressionPass.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CompressionProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecompressionProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CompressionProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DecompressionProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 
 /**
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultDataPersistencePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultDataPersistencePass.java
index a89369e91..e7c9d882f 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultDataPersistencePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultDataPersistencePass.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataStoreProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataPersistenceProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.DataStoreProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataPersistenceProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 /**
  * Pass for initiating IREdge data persistence ExecutionProperty with default values.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultDataStorePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultDataStorePass.java
index 79018dce6..5bea49627 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultDataStorePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultDataStorePass.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataStoreProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.DataStoreProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
 
 /**
  * Edge data store pass to process inter-stage memory store edges.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultEdgeDecoderPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultEdgeDecoderPass.java
index 3c40c56fb..cb2329e74 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultEdgeDecoderPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultEdgeDecoderPass.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.coder.DecoderFactory;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecoderProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.coder.DecoderFactory;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.DecoderProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
 
 /**
  * Pass for initiating IREdge Decoder ExecutionProperty with default dummy coder.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultEdgeEncoderPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultEdgeEncoderPass.java
index a13a1f249..f0cf682f4 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultEdgeEncoderPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultEdgeEncoderPass.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.coder.EncoderFactory;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.EncoderProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.coder.EncoderFactory;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.EncoderProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
 
 /**
  * Pass for initiating IREdge Encoder ExecutionProperty with default dummy coder.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultMetricPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultMetricPass.java
index e13b15e5f..c320e8315 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultMetricPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultMetricPass.java
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.DataSkewMetricFactory;
-import edu.snu.nemo.common.HashRange;
-import edu.snu.nemo.common.KeyRange;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataSkewMetricProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.common.DataSkewMetricFactory;
+import org.apache.nemo.common.HashRange;
+import org.apache.nemo.common.KeyRange;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataSkewMetricProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
 
 import java.util.HashMap;
 import java.util.Map;
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultParallelismPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultParallelismPass.java
index 87cc71ade..e8b743bff 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultParallelismPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultParallelismPass.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.SourceVertex;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.SourceVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.List;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultScheduleGroupPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultScheduleGroupPass.java
index 53dd17ec3..549e3e259 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultScheduleGroupPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultScheduleGroupPass.java
@@ -13,18 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.dag.Edge;
-import edu.snu.nemo.common.dag.Vertex;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ScheduleGroupProperty;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.dag.Edge;
+import org.apache.nemo.common.dag.Vertex;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ScheduleGroupProperty;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 import org.apache.commons.lang3.mutable.MutableInt;
 
 import java.util.*;
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DisaggregationEdgeDataStorePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DisaggregationEdgeDataStorePass.java
index 9122dc059..a8e073739 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DisaggregationEdgeDataStorePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DisaggregationEdgeDataStorePass.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataStoreProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.DataStoreProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.List;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DuplicateEdgeGroupSizePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DuplicateEdgeGroupSizePass.java
index 8dbe7251d..7b634b626 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DuplicateEdgeGroupSizePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DuplicateEdgeGroupSizePass.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupPropertyValue;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupPropertyValue;
+import org.apache.nemo.common.ir.vertex.IRVertex;
 
 import java.util.HashMap;
 import java.util.Optional;
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleCompressionPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleCompressionPass.java
index ae9044ece..6ebf4b440 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleCompressionPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleCompressionPass.java
@@ -13,20 +13,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.CompressionProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.CompressionProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.List;
 
 /**
  * A pass to support Sailfish-like shuffle by tagging edges.
- * This pass modifies the encoder property toward {@link edu.snu.nemo.common.ir.vertex.transform.RelayTransform}
+ * This pass modifies the encoder property toward {@link org.apache.nemo.common.ir.vertex.transform.RelayTransform}
  * to write data as byte arrays.
  */
 @Annotates(CompressionProperty.class)
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDataFlowPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDataFlowPass.java
index 6a623a072..d1431548c 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDataFlowPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDataFlowPass.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.List;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDataPersistencePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDataPersistencePass.java
index e4e8e28cf..d2b11686c 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDataPersistencePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDataPersistencePass.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataPersistenceProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataPersistenceProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 /**
  * A pass to optimize large shuffle by tagging edges.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDataStorePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDataStorePass.java
index 575825bdc..52db6d749 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDataStorePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDataStorePass.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataStoreProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataStoreProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 /**
  * A pass to optimize large shuffle by tagging edges.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDecoderPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDecoderPass.java
index c0647e328..bbe1da403 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDecoderPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDecoderPass.java
@@ -13,21 +13,21 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.coder.BytesDecoderFactory;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecoderProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.coder.BytesDecoderFactory;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DecoderProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.List;
 
 /**
  * A pass to optimize large shuffle by tagging edges.
- * This pass modifies the decoder property toward {@link edu.snu.nemo.common.ir.vertex.transform.RelayTransform}
+ * This pass modifies the decoder property toward {@link org.apache.nemo.common.ir.vertex.transform.RelayTransform}
  * to read data as byte arrays.
  */
 @Annotates(DecoderProperty.class)
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDecompressionPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDecompressionPass.java
index 7706c9801..427fd140d 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDecompressionPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleDecompressionPass.java
@@ -13,21 +13,21 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.CompressionProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecompressionProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.CompressionProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DecompressionProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.List;
 
 /**
  * A pass to support Sailfish-like shuffle by tagging edges.
- * This pass modifies the decoder property toward {@link edu.snu.nemo.common.ir.vertex.transform.RelayTransform}
+ * This pass modifies the decoder property toward {@link org.apache.nemo.common.ir.vertex.transform.RelayTransform}
  * to read data as byte arrays.
  */
 @Annotates(DecompressionProperty.class)
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleEncoderPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleEncoderPass.java
index bd15052a9..f89a65f72 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleEncoderPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleEncoderPass.java
@@ -13,21 +13,21 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.coder.BytesEncoderFactory;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.EncoderProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.coder.BytesEncoderFactory;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.EncoderProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.List;
 
 /**
  * A pass to optimize large shuffle by tagging edges.
- * This pass modifies the encoder property toward {@link edu.snu.nemo.common.ir.vertex.transform.RelayTransform}
+ * This pass modifies the encoder property toward {@link org.apache.nemo.common.ir.vertex.transform.RelayTransform}
  * to write data as byte arrays.
  */
 @Annotates(EncoderProperty.class)
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShufflePartitionerPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShufflePartitionerPass.java
index e191ff7ac..db0cd0be9 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShufflePartitionerPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShufflePartitionerPass.java
@@ -13,20 +13,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.PartitionerProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.PartitionerProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.List;
 
 /**
  * A pass to support Sailfish-like shuffle by tagging edges.
- * This pass modifies the partitioner property from {@link edu.snu.nemo.common.ir.vertex.transform.RelayTransform}
+ * This pass modifies the partitioner property from {@link org.apache.nemo.common.ir.vertex.transform.RelayTransform}
  * to write an element as a partition.
  * This enables that every byte[] element, which was a partition for the reduce task, becomes one partition again
  * and flushed to disk write after it is relayed.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleResourceSlotPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleResourceSlotPass.java
index efce189bd..69a67fb0b 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleResourceSlotPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/LargeShuffleResourceSlotPass.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceSlotProperty;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceSlotProperty;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 /**
  * Sets {@link ResourceSlotProperty}.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ResourceLocalityPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ResourceLocalityPass.java
index 9884808cf..244a4a4a0 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ResourceLocalityPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ResourceLocalityPass.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceLocalityProperty;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceLocalityProperty;
 
 /**
  * Sets {@link ResourceLocalityProperty}.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ResourceSitePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ResourceSitePass.java
index 5883ac133..2e3f237e9 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ResourceSitePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ResourceSitePass.java
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
 import com.fasterxml.jackson.core.TreeNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceSiteProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceSiteProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 import org.apache.commons.math3.optim.BaseOptimizer;
 import org.apache.commons.math3.optim.PointValuePair;
 import org.apache.commons.math3.optim.linear.*;
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ResourceSlotPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ResourceSlotPass.java
index bbb3fc614..163a619fb 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ResourceSlotPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ResourceSlotPass.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceSlotProperty;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceSlotProperty;
 
 /**
  * Sets {@link ResourceSlotProperty}.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ShuffleEdgePushPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ShuffleEdgePushPass.java
index 0820dde6c..762b0be0e 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ShuffleEdgePushPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/ShuffleEdgePushPass.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.List;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/SkewMetricCollectionPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/SkewMetricCollectionPass.java
index 95f1cd0e3..32021034d 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/SkewMetricCollectionPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/SkewMetricCollectionPass.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.edge.executionproperty.MetricCollectionProperty;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.transform.MetricCollectTransform;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.edge.executionproperty.MetricCollectionProperty;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.transform.MetricCollectTransform;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 /**
  * Pass to annotate the IR DAG for skew handling.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/SkewPartitionerPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/SkewPartitionerPass.java
index ab34ffffb..2ba88ad8a 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/SkewPartitionerPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/SkewPartitionerPass.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.MetricCollectionProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.edge.executionproperty.PartitionerProperty;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.transform.AggregateMetricTransform;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.MetricCollectionProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.edge.executionproperty.PartitionerProperty;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.transform.AggregateMetricTransform;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.List;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/SkewResourceSkewedDataPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/SkewResourceSkewedDataPass.java
index 806cef186..80e994a6c 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/SkewResourceSkewedDataPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/SkewResourceSkewedDataPass.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.DynamicOptimizationProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceSkewedDataProperty;
-import edu.snu.nemo.common.ir.vertex.transform.MetricCollectTransform;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.DynamicOptimizationProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceSkewedDataProperty;
+import org.apache.nemo.common.ir.vertex.transform.MetricCollectTransform;
 
 import java.util.List;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/TransientResourceDataFlowPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/TransientResourceDataFlowPass.java
index 9850d8133..e2733d361 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/TransientResourceDataFlowPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/TransientResourceDataFlowPass.java
@@ -13,18 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.List;
 
-import static edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.TransientResourceDataStorePass.fromTransientToReserved;
+import static org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.TransientResourceDataStorePass.fromTransientToReserved;
 
 /**
  * Push from transient resources to reserved resources.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/TransientResourceDataStorePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/TransientResourceDataStorePass.java
index 1f8165173..06d1af74e 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/TransientResourceDataStorePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/TransientResourceDataStorePass.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataStoreProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataStoreProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.List;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/TransientResourcePriorityPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/TransientResourcePriorityPass.java
index 177ffbd48..60e5b76dd 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/TransientResourcePriorityPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/TransientResourcePriorityPass.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.List;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/UpfrontCloningPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/UpfrontCloningPass.java
index 7c4920f05..93bcc7008 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/UpfrontCloningPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/UpfrontCloningPass.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ClonedSchedulingProperty;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ClonedSchedulingProperty;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 /**
  * Set the ClonedScheduling property of source vertices, in an upfront manner.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/CompositePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/CompositePass.java
index aa44e26d3..1d25622b0 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/CompositePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/CompositePass.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.composite;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.composite;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.executionproperty.ExecutionProperty;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.AnnotatingPass;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.executionproperty.ExecutionProperty;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.AnnotatingPass;
 
 import java.util.*;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/DefaultCompositePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/DefaultCompositePass.java
index 6bb119b05..572f003f8 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/DefaultCompositePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/DefaultCompositePass.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.composite;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.composite;
 
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.*;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.*;
 
 import java.util.Arrays;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/LargeShuffleCompositePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/LargeShuffleCompositePass.java
index 851890554..d291adc32 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/LargeShuffleCompositePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/LargeShuffleCompositePass.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.composite;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.composite;
 
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.*;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping.LargeShuffleRelayReshapingPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.*;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping.LargeShuffleRelayReshapingPass;
 
 import java.util.Arrays;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/LoopOptimizationCompositePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/LoopOptimizationCompositePass.java
index 326f0345c..063f47efe 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/LoopOptimizationCompositePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/LoopOptimizationCompositePass.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.composite;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.composite;
 
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.DuplicateEdgeGroupSizePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping.LoopExtractionPass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping.LoopOptimizations;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping.LoopUnrollingPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.DuplicateEdgeGroupSizePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping.LoopExtractionPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping.LoopOptimizations;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping.LoopUnrollingPass;
 
 import java.util.Arrays;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/SkewCompositePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/SkewCompositePass.java
index 1be97fabb..50426a2d9 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/SkewCompositePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/SkewCompositePass.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.composite;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.composite;
 
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.*;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping.SkewReshapingPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.*;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping.SkewReshapingPass;
 
 import java.util.Arrays;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/TransientResourceCompositePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/TransientResourceCompositePass.java
index 7c5cd0bdb..c1427b5e7 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/TransientResourceCompositePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/TransientResourceCompositePass.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.composite;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.composite;
 
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.TransientResourceDataFlowPass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.TransientResourceDataStorePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.TransientResourcePriorityPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.TransientResourceDataFlowPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.TransientResourceDataStorePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.TransientResourcePriorityPass;
 
 import java.util.Arrays;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/CommonSubexpressionEliminationPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/CommonSubexpressionEliminationPass.java
index 818e1b719..9f50d1fe9 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/CommonSubexpressionEliminationPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/CommonSubexpressionEliminationPass.java
@@ -13,20 +13,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping;
 
-import edu.snu.nemo.common.coder.DecoderFactory;
-import edu.snu.nemo.common.coder.EncoderFactory;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecoderProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.EncoderProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.coder.DecoderFactory;
+import org.apache.nemo.common.coder.EncoderFactory;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DecoderProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.EncoderProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.*;
 import java.util.stream.Collectors;
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LargeShuffleRelayReshapingPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LargeShuffleRelayReshapingPass.java
index 9918b39da..aaa7b4cac 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LargeShuffleRelayReshapingPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LargeShuffleRelayReshapingPass.java
@@ -13,18 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecoderProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.EncoderProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.transform.RelayTransform;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.executionproperty.DecoderProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.EncoderProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.transform.RelayTransform;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 /**
  * Pass to modify the DAG for a job to batch the disk seek.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopExtractionPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopExtractionPass.java
index 0992539ff..ed9778e95 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopExtractionPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopExtractionPass.java
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping;
 
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.vertex.LoopVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.SourceVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.vertex.LoopVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.SourceVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.*;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopOptimizations.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopOptimizations.java
index ce496df1d..6cb7fab53 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopOptimizations.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopOptimizations.java
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping;
 
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecoderProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.EncoderProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.LoopVertex;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DecoderProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.EncoderProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.LoopVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.*;
 import java.util.function.IntPredicate;
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopUnrollingPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopUnrollingPass.java
index c1408e5e0..f5afc43ca 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopUnrollingPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopUnrollingPass.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.LoopVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.LoopVertex;
 
 /**
  * Pass for unrolling the loops grouped by the {@link LoopExtractionPass}.
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/ReshapingPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/ReshapingPass.java
index 85ec3fd47..bdc7feae4 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/ReshapingPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/ReshapingPass.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping;
 
-import edu.snu.nemo.common.ir.executionproperty.ExecutionProperty;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+import org.apache.nemo.common.ir.executionproperty.ExecutionProperty;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 
 import java.util.Arrays;
 import java.util.HashSet;
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/SkewReshapingPass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/SkewReshapingPass.java
index fe12b950c..adf573b1c 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/SkewReshapingPass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/SkewReshapingPass.java
@@ -13,24 +13,24 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping;
-
-import edu.snu.nemo.common.KeyExtractor;
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.coder.*;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.*;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecoderProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.EncoderProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.transform.AggregateMetricTransform;
-import edu.snu.nemo.common.ir.vertex.transform.MetricCollectTransform;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.Requires;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping;
+
+import org.apache.nemo.common.KeyExtractor;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.coder.*;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.*;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DecoderProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.EncoderProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.transform.AggregateMetricTransform;
+import org.apache.nemo.common.ir.vertex.transform.MetricCollectTransform;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.Requires;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/BasicPullPolicy.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/BasicPullPolicy.java
index b4e17d1e1..edc03c46f 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/BasicPullPolicy.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/BasicPullPolicy.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.policy;
+package org.apache.nemo.compiler.optimizer.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultScheduleGroupPass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.AggressiveSpeculativeCloningPass;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultScheduleGroupPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.AggressiveSpeculativeCloningPass;
 import org.apache.reef.tang.Injector;
 
 /**
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/BasicPushPolicy.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/BasicPushPolicy.java
index 8ef91cffa..57ca4504b 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/BasicPushPolicy.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/BasicPushPolicy.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.policy;
+package org.apache.nemo.compiler.optimizer.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultScheduleGroupPass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.ShuffleEdgePushPass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.AggressiveSpeculativeCloningPass;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultScheduleGroupPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.ShuffleEdgePushPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.AggressiveSpeculativeCloningPass;
 import org.apache.reef.tang.Injector;
 
 /**
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/ConditionalLargeShufflePolicy.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/ConditionalLargeShufflePolicy.java
index 492d6d7ee..cd8fa62f4 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/ConditionalLargeShufflePolicy.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/ConditionalLargeShufflePolicy.java
@@ -14,16 +14,16 @@
  * limitations under the License.
  */
 
-package edu.snu.nemo.compiler.optimizer.policy;
+package org.apache.nemo.compiler.optimizer.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.DefaultCompositePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.LargeShuffleCompositePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.LoopOptimizationCompositePass;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.DefaultCompositePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.LargeShuffleCompositePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.LoopOptimizationCompositePass;
 import org.apache.reef.tang.Injector;
 
 /**
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DataSkewPolicy.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DataSkewPolicy.java
index 801cbede8..a59943a3b 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DataSkewPolicy.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DataSkewPolicy.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.policy;
+package org.apache.nemo.compiler.optimizer.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.SkewCompositePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.LoopOptimizationCompositePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.DefaultCompositePass;
-import edu.snu.nemo.runtime.common.optimizer.pass.runtime.DataSkewRuntimePass;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.SkewCompositePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.LoopOptimizationCompositePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.DefaultCompositePass;
+import org.apache.nemo.runtime.common.optimizer.pass.runtime.DataSkewRuntimePass;
 import org.apache.reef.tang.Injector;
 
 /**
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DefaultPolicy.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DefaultPolicy.java
index 4134f6e9e..84f5dceab 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DefaultPolicy.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DefaultPolicy.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.policy;
+package org.apache.nemo.compiler.optimizer.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.DefaultCompositePass;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.DefaultCompositePass;
 import org.apache.reef.tang.Injector;
 
 /**
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DefaultPolicyWithSeparatePass.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DefaultPolicyWithSeparatePass.java
index d754bd065..bf50f32a8 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DefaultPolicyWithSeparatePass.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DefaultPolicyWithSeparatePass.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.policy;
+package org.apache.nemo.compiler.optimizer.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultParallelismPass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultDataStorePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultScheduleGroupPass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.CompositePass;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultParallelismPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultDataStorePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultScheduleGroupPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.CompositePass;
 import org.apache.reef.tang.Injector;
 
 import java.util.Arrays;
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DisaggregationPolicy.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DisaggregationPolicy.java
index dca9b615c..c89d86d17 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DisaggregationPolicy.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/DisaggregationPolicy.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.policy;
+package org.apache.nemo.compiler.optimizer.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.*;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.DefaultCompositePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.LoopOptimizationCompositePass;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.*;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.DefaultCompositePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.LoopOptimizationCompositePass;
 import org.apache.reef.tang.Injector;
 
 /**
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/LargeShufflePolicy.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/LargeShufflePolicy.java
index 56cb24f98..17a939cda 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/LargeShufflePolicy.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/LargeShufflePolicy.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.policy;
+package org.apache.nemo.compiler.optimizer.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.DefaultCompositePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.LoopOptimizationCompositePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.LargeShuffleCompositePass;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.DefaultCompositePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.LoopOptimizationCompositePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.LargeShuffleCompositePass;
 import org.apache.reef.tang.Injector;
 
 /**
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/Policy.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/Policy.java
index b025246f8..ef7c79532 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/Policy.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/Policy.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.policy;
+package org.apache.nemo.compiler.optimizer.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
 import org.apache.reef.tang.Injector;
 
 import java.io.Serializable;
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/PolicyBuilder.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/PolicyBuilder.java
index 4a84a625b..b1d3c7fd9 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/PolicyBuilder.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/PolicyBuilder.java
@@ -13,23 +13,23 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.policy;
+package org.apache.nemo.compiler.optimizer.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.exception.CompileTimeOptimizationException;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataStoreProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.PartitionerProperty;
-import edu.snu.nemo.common.ir.executionproperty.ExecutionProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.AnnotatingPass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.CompositePass;
-import edu.snu.nemo.runtime.common.optimizer.pass.runtime.RuntimePass;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.exception.CompileTimeOptimizationException;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataStoreProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.PartitionerProperty;
+import org.apache.nemo.common.ir.executionproperty.ExecutionProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.AnnotatingPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.CompositePass;
+import org.apache.nemo.runtime.common.optimizer.pass.runtime.RuntimePass;
 
 import java.util.*;
 import java.util.function.Predicate;
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/PolicyImpl.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/PolicyImpl.java
index 72c27f132..2d029f246 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/PolicyImpl.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/PolicyImpl.java
@@ -14,18 +14,18 @@
  * limitations under the License.
  */
 
-package edu.snu.nemo.compiler.optimizer.policy;
+package org.apache.nemo.compiler.optimizer.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.eventhandler.RuntimeEventHandler;
-import edu.snu.nemo.common.exception.CompileTimeOptimizationException;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.AnnotatingPass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping.ReshapingPass;
-import edu.snu.nemo.runtime.common.optimizer.pass.runtime.RuntimePass;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.eventhandler.RuntimeEventHandler;
+import org.apache.nemo.common.exception.CompileTimeOptimizationException;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.AnnotatingPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping.ReshapingPass;
+import org.apache.nemo.runtime.common.optimizer.pass.runtime.RuntimePass;
 import org.apache.reef.tang.Injector;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
diff --git a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/TransientResourcePolicy.java b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/TransientResourcePolicy.java
index 56325a109..33cee8b41 100644
--- a/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/TransientResourcePolicy.java
+++ b/compiler/optimizer/src/main/java/edu/snu/nemo/compiler/optimizer/policy/TransientResourcePolicy.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.policy;
+package org.apache.nemo.compiler.optimizer.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.DefaultCompositePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.LoopOptimizationCompositePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.TransientResourceCompositePass;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.DefaultCompositePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.LoopOptimizationCompositePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.TransientResourceCompositePass;
 import org.apache.reef.tang.Injector;
 
 /**
diff --git a/compiler/optimizer/src/test/java/edu/snu/nemo/compiler/optimizer/policy/PolicyBuilderTest.java b/compiler/optimizer/src/test/java/edu/snu/nemo/compiler/optimizer/policy/PolicyBuilderTest.java
index 35ddbb2e4..e7ec4956a 100644
--- a/compiler/optimizer/src/test/java/edu/snu/nemo/compiler/optimizer/policy/PolicyBuilderTest.java
+++ b/compiler/optimizer/src/test/java/edu/snu/nemo/compiler/optimizer/policy/PolicyBuilderTest.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.policy;
+package org.apache.nemo.compiler.optimizer.policy;
 
-import edu.snu.nemo.common.exception.CompileTimeOptimizationException;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultScheduleGroupPass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.composite.TransientResourceCompositePass;
+import org.apache.nemo.common.exception.CompileTimeOptimizationException;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultScheduleGroupPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.composite.TransientResourceCompositePass;
 import org.junit.Test;
 
 import static org.junit.Assert.assertEquals;
diff --git a/compiler/optimizer/src/test/java/edu/snu/nemo/compiler/optimizer/policy/PolicyImplTest.java b/compiler/optimizer/src/test/java/edu/snu/nemo/compiler/optimizer/policy/PolicyImplTest.java
index 66aa36683..ac8e996d1 100644
--- a/compiler/optimizer/src/test/java/edu/snu/nemo/compiler/optimizer/policy/PolicyImplTest.java
+++ b/compiler/optimizer/src/test/java/edu/snu/nemo/compiler/optimizer/policy/PolicyImplTest.java
@@ -14,16 +14,16 @@
  * limitations under the License.
  */
 
-package edu.snu.nemo.compiler.optimizer.policy;
-
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.exception.CompileTimeOptimizationException;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.test.EmptyComponents;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
-import edu.snu.nemo.runtime.common.optimizer.pass.runtime.RuntimePass;
+package org.apache.nemo.compiler.optimizer.policy;
+
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.exception.CompileTimeOptimizationException;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.test.EmptyComponents;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
+import org.apache.nemo.runtime.common.optimizer.pass.runtime.RuntimePass;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
diff --git a/compiler/test/pom.xml b/compiler/test/pom.xml
index 4c30dbf3a..ad258bded 100644
--- a/compiler/test/pom.xml
+++ b/compiler/test/pom.xml
@@ -19,7 +19,7 @@ limitations under the License.
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <artifactId>nemo-project</artifactId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../../</relativePath>
@@ -37,23 +37,23 @@ limitations under the License.
 
     <dependencies>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-conf</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-client</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-compiler-frontend-beam</artifactId>
             <version>${project.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-examples-beam</artifactId>
             <version>${project.version}</version>
             <scope>test</scope>
diff --git a/compiler/test/src/main/java/edu/snu/nemo/compiler/CompilerTestUtil.java b/compiler/test/src/main/java/edu/snu/nemo/compiler/CompilerTestUtil.java
index aece5f328..d481ac612 100644
--- a/compiler/test/src/main/java/edu/snu/nemo/compiler/CompilerTestUtil.java
+++ b/compiler/test/src/main/java/edu/snu/nemo/compiler/CompilerTestUtil.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler;
-
-import edu.snu.nemo.common.test.ArgBuilder;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.dag.DAG;
+package org.apache.nemo.compiler;
+
+import org.apache.nemo.common.test.ArgBuilder;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.dag.DAG;
 import org.apache.reef.tang.Configuration;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
@@ -92,7 +92,7 @@ private static String findRoot(final String curDir) {
   public static DAG<IRVertex, IREdge> compileWordCountDAG() throws Exception {
     final String input = ROOT_DIR + "/examples/resources/test_input_wordcount";
     final String output = ROOT_DIR + "/examples/resources/test_output";
-    final String main = "edu.snu.nemo.examples.beam.WordCount";
+    final String main = "org.apache.nemo.examples.beam.WordCount";
 
     final ArgBuilder mrArgBuilder = new ArgBuilder()
         .addJobId("WordCount")
@@ -105,7 +105,7 @@ private static String findRoot(final String curDir) {
     final String input = ROOT_DIR + "/examples/resources/test_input_als";
     final String numFeatures = "10";
     final String numIteration = "3";
-    final String main = "edu.snu.nemo.examples.beam.AlternatingLeastSquare";
+    final String main = "org.apache.nemo.examples.beam.AlternatingLeastSquare";
 
     final ArgBuilder alsArgBuilder = new ArgBuilder()
         .addJobId("AlternatingLeastSquare")
@@ -118,7 +118,7 @@ private static String findRoot(final String curDir) {
     final String input = ROOT_DIR + "/examples/resources/test_input_als";
     final String numFeatures = "10";
     final String numIteration = "3";
-    final String main = "edu.snu.nemo.examples.beam.AlternatingLeastSquareInefficient";
+    final String main = "org.apache.nemo.examples.beam.AlternatingLeastSquareInefficient";
 
     final ArgBuilder alsArgBuilder = new ArgBuilder()
         .addJobId("AlternatingLeastSquareInefficient")
@@ -132,7 +132,7 @@ private static String findRoot(final String curDir) {
     final String numFeatures = "100";
     final String numClasses = "5";
     final String numIteration = "3";
-    final String main = "edu.snu.nemo.examples.beam.MultinomialLogisticRegression";
+    final String main = "org.apache.nemo.examples.beam.MultinomialLogisticRegression";
 
     final ArgBuilder mlrArgBuilder = new ArgBuilder()
         .addJobId("MultinomialLogisticRegression")
diff --git a/compiler/test/src/main/java/edu/snu/nemo/compiler/optimizer/policy/TestPolicy.java b/compiler/test/src/main/java/edu/snu/nemo/compiler/optimizer/policy/TestPolicy.java
index debc09eb3..5d35c08e1 100644
--- a/compiler/test/src/main/java/edu/snu/nemo/compiler/optimizer/policy/TestPolicy.java
+++ b/compiler/test/src/main/java/edu/snu/nemo/compiler/optimizer/policy/TestPolicy.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.policy;
-
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.*;
+package org.apache.nemo.compiler.optimizer.policy;
+
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.*;
 import org.apache.reef.tang.Injector;
 
 import java.util.*;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/backend/nemo/DAGConverterTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/backend/nemo/DAGConverterTest.java
index 207592a83..2f87188cd 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/backend/nemo/DAGConverterTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/backend/nemo/DAGConverterTest.java
@@ -13,27 +13,27 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.backend.nemo;
-
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataStoreProperty;
-import edu.snu.nemo.common.ir.vertex.SourceVertex;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
-import edu.snu.nemo.compiler.frontend.beam.transform.DoTransform;
-import edu.snu.nemo.common.test.EmptyComponents;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlanGenerator;
-import edu.snu.nemo.runtime.common.plan.Stage;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
-import edu.snu.nemo.compiler.optimizer.policy.TestPolicy;
+package org.apache.nemo.compiler.backend.nemo;
+
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataStoreProperty;
+import org.apache.nemo.common.ir.vertex.SourceVertex;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.compiler.frontend.beam.transform.DoTransform;
+import org.apache.nemo.common.test.EmptyComponents;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.plan.PhysicalPlanGenerator;
+import org.apache.nemo.runtime.common.plan.Stage;
+import org.apache.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.compiler.optimizer.policy.TestPolicy;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
 import org.junit.Before;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/frontend/beam/BeamFrontendALSTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/frontend/beam/BeamFrontendALSTest.java
index 12c82446a..b4a0b9873 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/frontend/beam/BeamFrontendALSTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/frontend/beam/BeamFrontendALSTest.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam;
+package org.apache.nemo.compiler.frontend.beam;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.CompilerTestUtil;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.CompilerTestUtil;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.powermock.core.classloader.annotations.PrepareForTest;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/frontend/beam/BeamFrontendMLRTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/frontend/beam/BeamFrontendMLRTest.java
index 7f4d5910d..a2de717b9 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/frontend/beam/BeamFrontendMLRTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/frontend/beam/BeamFrontendMLRTest.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.frontend.beam;
+package org.apache.nemo.compiler.frontend.beam;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.CompilerTestUtil;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.CompilerTestUtil;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.powermock.core.classloader.annotations.PrepareForTest;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultEdgeCoderPassTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultEdgeCoderPassTest.java
index 800bc40d8..bc2c42c35 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultEdgeCoderPassTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultEdgeCoderPassTest.java
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.coder.DecoderFactory;
-import edu.snu.nemo.common.coder.EncoderFactory;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecoderProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.EncoderProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.CompilerTestUtil;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.coder.DecoderFactory;
+import org.apache.nemo.common.coder.EncoderFactory;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.DecoderProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.EncoderProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.CompilerTestUtil;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultParallelismPassTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultParallelismPassTest.java
index 1205f64de..80a820a7b 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultParallelismPassTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultParallelismPassTest.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.SourceVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.compiler.CompilerTestUtil;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.SourceVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.compiler.CompilerTestUtil;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultScheduleGroupPassTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultScheduleGroupPassTest.java
index c8bfc85a7..ea399ca5c 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultScheduleGroupPassTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/annotating/DefaultScheduleGroupPassTest.java
@@ -13,20 +13,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.annotating;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ScheduleGroupProperty;
-import edu.snu.nemo.compiler.CompilerTestUtil;
-import edu.snu.nemo.compiler.optimizer.policy.TestPolicy;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ScheduleGroupProperty;
+import org.apache.nemo.compiler.CompilerTestUtil;
+import org.apache.nemo.compiler.optimizer.policy.TestPolicy;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.powermock.core.classloader.annotations.PrepareForTest;
@@ -34,7 +34,7 @@
 
 import java.util.*;
 
-import static edu.snu.nemo.common.test.EmptyComponents.EMPTY_TRANSFORM;
+import static org.apache.nemo.common.test.EmptyComponents.EMPTY_TRANSFORM;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/DisaggregationPassTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/DisaggregationPassTest.java
index d41bf36f9..27f31d049 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/DisaggregationPassTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/DisaggregationPassTest.java
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.composite;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.composite;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataStoreProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.CompilerTestUtil;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultParallelismPass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.DisaggregationEdgeDataStorePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultDataStorePass;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.DataStoreProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.CompilerTestUtil;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultParallelismPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.DisaggregationEdgeDataStorePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultDataStorePass;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/LargeShuffleCompositePassTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/LargeShuffleCompositePassTest.java
index f85927077..a748522c0 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/LargeShuffleCompositePassTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/LargeShuffleCompositePassTest.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.composite;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.composite;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.coder.BytesDecoderFactory;
-import edu.snu.nemo.common.coder.BytesEncoderFactory;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.*;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.CompilerTestUtil;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.coder.BytesDecoderFactory;
+import org.apache.nemo.common.coder.BytesEncoderFactory;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.*;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.CompilerTestUtil;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/SkewCompositePassTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/SkewCompositePassTest.java
index b04b84946..9a3828129 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/SkewCompositePassTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/SkewCompositePassTest.java
@@ -13,21 +13,21 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.composite;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.composite;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.AdditionalOutputTagProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.executionproperty.ExecutionProperty;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.transform.MetricCollectTransform;
-import edu.snu.nemo.common.ir.vertex.transform.AggregateMetricTransform;
-import edu.snu.nemo.compiler.CompilerTestUtil;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceSkewedDataProperty;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.AnnotatingPass;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.AdditionalOutputTagProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.executionproperty.ExecutionProperty;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.transform.MetricCollectTransform;
+import org.apache.nemo.common.ir.vertex.transform.AggregateMetricTransform;
+import org.apache.nemo.compiler.CompilerTestUtil;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceSkewedDataProperty;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.AnnotatingPass;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/TransientResourceCompositePassTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/TransientResourceCompositePassTest.java
index 97a5cd27a..a2ebce292 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/TransientResourceCompositePassTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/composite/TransientResourceCompositePassTest.java
@@ -13,18 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.composite;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.composite;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataStoreProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
-import edu.snu.nemo.compiler.CompilerTestUtil;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.TransientResourceDataStorePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.TransientResourcePriorityPass;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataStoreProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.compiler.CompilerTestUtil;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.TransientResourceDataStorePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.TransientResourcePriorityPass;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/CommonSubexpressionEliminationPassTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/CommonSubexpressionEliminationPassTest.java
index cfb9a58cd..02f106225 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/CommonSubexpressionEliminationPassTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/CommonSubexpressionEliminationPassTest.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.test.EmptyComponents;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.test.EmptyComponents;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopExtractionPassTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopExtractionPassTest.java
index 7e0c42500..a912115f4 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopExtractionPassTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopExtractionPassTest.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.CompilerTestUtil;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.CompilerTestUtil;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopFusionPassTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopFusionPassTest.java
index 8e94779b7..11e54f142 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopFusionPassTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopFusionPassTest.java
@@ -13,18 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping;
-
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecoderProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.EncoderProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.LoopVertex;
-import edu.snu.nemo.compiler.CompilerTestUtil;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping;
+
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DecoderProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.EncoderProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.LoopVertex;
+import org.apache.nemo.compiler.CompilerTestUtil;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopInvariantCodeMotionALSInefficientTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopInvariantCodeMotionALSInefficientTest.java
index 2162463d8..cdef48412 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopInvariantCodeMotionALSInefficientTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopInvariantCodeMotionALSInefficientTest.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.CompilerTestUtil;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.CompilerTestUtil;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopInvariantCodeMotionPassTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopInvariantCodeMotionPassTest.java
index 5cd7928f2..7a10e1181 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopInvariantCodeMotionPassTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopInvariantCodeMotionPassTest.java
@@ -13,18 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping;
-
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecoderProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.EncoderProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.LoopVertex;
-import edu.snu.nemo.compiler.CompilerTestUtil;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping;
+
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DecoderProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.EncoderProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.LoopVertex;
+import org.apache.nemo.compiler.CompilerTestUtil;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopUnrollingPassTest.java b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopUnrollingPassTest.java
index 5f823f1f6..16fcd007c 100644
--- a/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopUnrollingPassTest.java
+++ b/compiler/test/src/test/java/edu/snu/nemo/compiler/optimizer/pass/compiletime/reshaping/LoopUnrollingPassTest.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping;
+package org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.CompilerTestUtil;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.CompilerTestUtil;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/conf/pom.xml b/conf/pom.xml
index 29c821e33..d1d6bb131 100644
--- a/conf/pom.xml
+++ b/conf/pom.xml
@@ -19,7 +19,7 @@ limitations under the License.
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <artifactId>nemo-project</artifactId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../</relativePath>
diff --git a/conf/src/main/java/edu/snu/nemo/conf/JobConf.java b/conf/src/main/java/edu/snu/nemo/conf/JobConf.java
index d26adaf17..9ce453bfc 100644
--- a/conf/src/main/java/edu/snu/nemo/conf/JobConf.java
+++ b/conf/src/main/java/edu/snu/nemo/conf/JobConf.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.conf;
+package org.apache.nemo.conf;
 
 import org.apache.reef.tang.annotations.Name;
 import org.apache.reef.tang.annotations.NamedParameter;
@@ -95,7 +95,7 @@
    * The name of the optimization policy.
    */
   @NamedParameter(doc = "The canonical name of the optimization policy", short_name = "optimization_policy",
-      default_value = "edu.snu.nemo.compiler.optimizer.policy.DefaultPolicy")
+      default_value = "org.apache.nemo.compiler.optimizer.policy.DefaultPolicy")
   public final class OptimizationPolicy implements Name<String> {
   }
 
diff --git a/deploy/README.md b/deploy/README.md
index ca555a5f4..f8b962993 100644
--- a/deploy/README.md
+++ b/deploy/README.md
@@ -29,7 +29,7 @@
 * git clone Nemo on v-m and install
 * Upload a local input file to HDFS with `hdfs -put`
 * Launch a Nemo job with `-deploy_mode yarn`, and hdfs paths as the input/output
-* Example: `./bin/run.sh -deploy_mode yarn -job_id mr -user_main edu.snu.nemo.examples.beam.WordCount -user_args "hdfs://v-m:9000/test_input_wordcount hdfs://v-m:9000/test_output_wordcount"`
+* Example: `./bin/run.sh -deploy_mode yarn -job_id mr -user_main org.apache.nemo.examples.beam.WordCount -user_args "hdfs://v-m:9000/test_input_wordcount hdfs://v-m:9000/test_output_wordcount"`
 
 ## And you're all set.....?
 * I hope so
diff --git a/examples/beam/pom.xml b/examples/beam/pom.xml
index d09c57dc3..35f31e421 100644
--- a/examples/beam/pom.xml
+++ b/examples/beam/pom.xml
@@ -19,7 +19,7 @@ limitations under the License.
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <artifactId>nemo-project</artifactId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../../</relativePath>
@@ -37,7 +37,7 @@ limitations under the License.
 
     <dependencies>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-compiler-frontend-beam</artifactId>
             <version>${project.version}</version>
         </dependency>
diff --git a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/AlternatingLeastSquare.java b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/AlternatingLeastSquare.java
index 0abcdaf50..e4e261fe3 100644
--- a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/AlternatingLeastSquare.java
+++ b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/AlternatingLeastSquare.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
 import com.github.fommil.netlib.BLAS;
 import com.github.fommil.netlib.LAPACK;
-import edu.snu.nemo.compiler.frontend.beam.NemoPipelineRunner;
-import edu.snu.nemo.compiler.frontend.beam.coder.FloatArrayCoder;
-import edu.snu.nemo.compiler.frontend.beam.coder.IntArrayCoder;
-import edu.snu.nemo.compiler.frontend.beam.transform.LoopCompositeTransform;
+import org.apache.nemo.compiler.frontend.beam.NemoPipelineRunner;
+import org.apache.nemo.compiler.frontend.beam.coder.FloatArrayCoder;
+import org.apache.nemo.compiler.frontend.beam.coder.IntArrayCoder;
+import org.apache.nemo.compiler.frontend.beam.transform.LoopCompositeTransform;
 import org.apache.beam.sdk.Pipeline;
 import org.apache.beam.sdk.coders.CoderProviders;
 import org.apache.beam.sdk.options.PipelineOptions;
diff --git a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/AlternatingLeastSquareInefficient.java b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/AlternatingLeastSquareInefficient.java
index 31bb166e4..9507e5a5c 100644
--- a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/AlternatingLeastSquareInefficient.java
+++ b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/AlternatingLeastSquareInefficient.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.compiler.frontend.beam.coder.FloatArrayCoder;
-import edu.snu.nemo.compiler.frontend.beam.coder.IntArrayCoder;
-import edu.snu.nemo.compiler.frontend.beam.transform.LoopCompositeTransform;
-import edu.snu.nemo.compiler.frontend.beam.NemoPipelineRunner;
+import org.apache.nemo.compiler.frontend.beam.coder.FloatArrayCoder;
+import org.apache.nemo.compiler.frontend.beam.coder.IntArrayCoder;
+import org.apache.nemo.compiler.frontend.beam.transform.LoopCompositeTransform;
+import org.apache.nemo.compiler.frontend.beam.NemoPipelineRunner;
 import org.apache.beam.sdk.Pipeline;
 import org.apache.beam.sdk.coders.CoderProviders;
 import org.apache.beam.sdk.options.PipelineOptions;
diff --git a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/Broadcast.java b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/Broadcast.java
index c5bfddae7..1f108aebe 100644
--- a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/Broadcast.java
+++ b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/Broadcast.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.compiler.frontend.beam.NemoPipelineRunner;
+import org.apache.nemo.compiler.frontend.beam.NemoPipelineRunner;
 import org.apache.beam.sdk.Pipeline;
 import org.apache.beam.sdk.options.PipelineOptions;
 import org.apache.beam.sdk.options.PipelineOptionsFactory;
diff --git a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/GenericSourceSink.java b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/GenericSourceSink.java
index 1ed7a9c9a..51fd3bd9d 100644
--- a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/GenericSourceSink.java
+++ b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/GenericSourceSink.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
 import org.apache.beam.sdk.Pipeline;
 import org.apache.beam.sdk.io.*;
diff --git a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/MultinomialLogisticRegression.java b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/MultinomialLogisticRegression.java
index a3e4fbeda..01d9efe7f 100644
--- a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/MultinomialLogisticRegression.java
+++ b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/MultinomialLogisticRegression.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.compiler.frontend.beam.transform.LoopCompositeTransform;
-import edu.snu.nemo.compiler.frontend.beam.NemoPipelineRunner;
-import edu.snu.nemo.common.Pair;
+import org.apache.nemo.compiler.frontend.beam.transform.LoopCompositeTransform;
+import org.apache.nemo.compiler.frontend.beam.NemoPipelineRunner;
+import org.apache.nemo.common.Pair;
 import org.apache.beam.sdk.Pipeline;
 import org.apache.beam.sdk.options.PipelineOptions;
 import org.apache.beam.sdk.options.PipelineOptionsFactory;
diff --git a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/NetworkTraceAnalysis.java b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/NetworkTraceAnalysis.java
index 1f2f9900a..13a6a27b7 100644
--- a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/NetworkTraceAnalysis.java
+++ b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/NetworkTraceAnalysis.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.compiler.frontend.beam.NemoPipelineOptions;
-import edu.snu.nemo.compiler.frontend.beam.NemoPipelineRunner;
+import org.apache.nemo.compiler.frontend.beam.NemoPipelineOptions;
+import org.apache.nemo.compiler.frontend.beam.NemoPipelineRunner;
 import org.apache.beam.sdk.Pipeline;
 import org.apache.beam.sdk.options.PipelineOptions;
 import org.apache.beam.sdk.options.PipelineOptionsFactory;
diff --git a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/PartitionWordsByLength.java b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/PartitionWordsByLength.java
index 8438052ee..5b3a4e529 100644
--- a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/PartitionWordsByLength.java
+++ b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/PartitionWordsByLength.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.compiler.frontend.beam.NemoPipelineOptions;
-import edu.snu.nemo.compiler.frontend.beam.NemoPipelineRunner;
+import org.apache.nemo.compiler.frontend.beam.NemoPipelineOptions;
+import org.apache.nemo.compiler.frontend.beam.NemoPipelineRunner;
 import org.apache.beam.sdk.Pipeline;
 import org.apache.beam.sdk.options.PipelineOptions;
 import org.apache.beam.sdk.options.PipelineOptionsFactory;
diff --git a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/PerKeyMedian.java b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/PerKeyMedian.java
index 14505ca53..78198c0f4 100644
--- a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/PerKeyMedian.java
+++ b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/PerKeyMedian.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.compiler.frontend.beam.NemoPipelineOptions;
-import edu.snu.nemo.compiler.frontend.beam.NemoPipelineRunner;
+import org.apache.nemo.compiler.frontend.beam.NemoPipelineOptions;
+import org.apache.nemo.compiler.frontend.beam.NemoPipelineRunner;
 import org.apache.beam.sdk.Pipeline;
 import org.apache.beam.sdk.options.PipelineOptions;
 import org.apache.beam.sdk.options.PipelineOptionsFactory;
diff --git a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/PerPercentileAverage.java b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/PerPercentileAverage.java
index 61c6b1ddc..24729f5c3 100644
--- a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/PerPercentileAverage.java
+++ b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/PerPercentileAverage.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
 import com.google.common.collect.Lists;
-import edu.snu.nemo.compiler.frontend.beam.NemoPipelineOptions;
-import edu.snu.nemo.compiler.frontend.beam.NemoPipelineRunner;
+import org.apache.nemo.compiler.frontend.beam.NemoPipelineOptions;
+import org.apache.nemo.compiler.frontend.beam.NemoPipelineRunner;
 import org.apache.beam.sdk.Pipeline;
 import org.apache.beam.sdk.coders.SerializableCoder;
 import org.apache.beam.sdk.options.PipelineOptions;
diff --git a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/WordCount.java b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/WordCount.java
index 3d3c556a3..cf8a05424 100644
--- a/examples/beam/src/main/java/edu/snu/nemo/examples/beam/WordCount.java
+++ b/examples/beam/src/main/java/edu/snu/nemo/examples/beam/WordCount.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.compiler.frontend.beam.NemoPipelineOptions;
-import edu.snu.nemo.compiler.frontend.beam.NemoPipelineRunner;
+import org.apache.nemo.compiler.frontend.beam.NemoPipelineOptions;
+import org.apache.nemo.compiler.frontend.beam.NemoPipelineRunner;
 import org.apache.beam.sdk.Pipeline;
 import org.apache.beam.sdk.options.PipelineOptions;
 import org.apache.beam.sdk.options.PipelineOptionsFactory;
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/AlternatingLeastSquareITCase.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/AlternatingLeastSquareITCase.java
index 5a6a47ae6..42978f382 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/AlternatingLeastSquareITCase.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/AlternatingLeastSquareITCase.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.test.ArgBuilder;
-import edu.snu.nemo.common.test.ExampleTestUtil;
-import edu.snu.nemo.compiler.optimizer.policy.DefaultPolicy;
-import edu.snu.nemo.examples.beam.policy.TransientResourcePolicyParallelismTen;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.test.ArgBuilder;
+import org.apache.nemo.common.test.ExampleTestUtil;
+import org.apache.nemo.compiler.optimizer.policy.DefaultPolicy;
+import org.apache.nemo.examples.beam.policy.TransientResourcePolicyParallelismTen;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/BroadcastITCase.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/BroadcastITCase.java
index 2ddfba44e..acb4246a1 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/BroadcastITCase.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/BroadcastITCase.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.test.ArgBuilder;
-import edu.snu.nemo.common.test.ExampleTestUtil;
-import edu.snu.nemo.examples.beam.policy.DefaultPolicyParallelismFive;
-import edu.snu.nemo.examples.beam.policy.TransientResourcePolicyParallelismFive;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.test.ArgBuilder;
+import org.apache.nemo.common.test.ExampleTestUtil;
+import org.apache.nemo.examples.beam.policy.DefaultPolicyParallelismFive;
+import org.apache.nemo.examples.beam.policy.TransientResourcePolicyParallelismFive;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/MultinomialLogisticRegressionITCase.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/MultinomialLogisticRegressionITCase.java
index c81f2418d..09db37eae 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/MultinomialLogisticRegressionITCase.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/MultinomialLogisticRegressionITCase.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.test.ArgBuilder;
-import edu.snu.nemo.compiler.optimizer.policy.DefaultPolicy;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.test.ArgBuilder;
+import org.apache.nemo.compiler.optimizer.policy.DefaultPolicy;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/NetworkTraceAnalysisITCase.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/NetworkTraceAnalysisITCase.java
index 07bc1cde5..dadb4f230 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/NetworkTraceAnalysisITCase.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/NetworkTraceAnalysisITCase.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.test.ArgBuilder;
-import edu.snu.nemo.common.test.ExampleTestUtil;
-import edu.snu.nemo.examples.beam.policy.DefaultPolicyParallelismFive;
-import edu.snu.nemo.examples.beam.policy.TransientResourcePolicyParallelismFive;
-import edu.snu.nemo.examples.beam.policy.LargeShufflePolicyParallelismFive;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.test.ArgBuilder;
+import org.apache.nemo.common.test.ExampleTestUtil;
+import org.apache.nemo.examples.beam.policy.DefaultPolicyParallelismFive;
+import org.apache.nemo.examples.beam.policy.TransientResourcePolicyParallelismFive;
+import org.apache.nemo.examples.beam.policy.LargeShufflePolicyParallelismFive;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/PartitionWordsByLengthITCase.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/PartitionWordsByLengthITCase.java
index fd4a34afa..bd1bf3d5e 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/PartitionWordsByLengthITCase.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/PartitionWordsByLengthITCase.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.test.ArgBuilder;
-import edu.snu.nemo.common.test.ExampleTestUtil;
-import edu.snu.nemo.examples.beam.policy.DefaultPolicyParallelismFive;
-import edu.snu.nemo.examples.beam.policy.LargeShufflePolicyParallelismFive;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.test.ArgBuilder;
+import org.apache.nemo.common.test.ExampleTestUtil;
+import org.apache.nemo.examples.beam.policy.DefaultPolicyParallelismFive;
+import org.apache.nemo.examples.beam.policy.LargeShufflePolicyParallelismFive;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/PerKeyMedianITCase.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/PerKeyMedianITCase.java
index 497939bba..cd6c24e7e 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/PerKeyMedianITCase.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/PerKeyMedianITCase.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.test.ArgBuilder;
-import edu.snu.nemo.common.test.ExampleTestUtil;
-import edu.snu.nemo.examples.beam.policy.DataSkewPolicyParallelismFive;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.test.ArgBuilder;
+import org.apache.nemo.common.test.ExampleTestUtil;
+import org.apache.nemo.examples.beam.policy.DataSkewPolicyParallelismFive;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/PerPercentileAverageITCase.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/PerPercentileAverageITCase.java
index eaeeddc31..b4af98f4d 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/PerPercentileAverageITCase.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/PerPercentileAverageITCase.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.test.ArgBuilder;
-import edu.snu.nemo.common.test.ExampleTestUtil;
-import edu.snu.nemo.examples.beam.policy.DefaultPolicyParallelismFive;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.test.ArgBuilder;
+import org.apache.nemo.common.test.ExampleTestUtil;
+import org.apache.nemo.examples.beam.policy.DefaultPolicyParallelismFive;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/WordCountITCase.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/WordCountITCase.java
index 48d598f79..1c22018da 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/WordCountITCase.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/WordCountITCase.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam;
+package org.apache.nemo.examples.beam;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.test.ArgBuilder;
-import edu.snu.nemo.common.test.ExampleTestUtil;
-import edu.snu.nemo.compiler.optimizer.policy.ConditionalLargeShufflePolicy;
-import edu.snu.nemo.examples.beam.policy.*;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.test.ArgBuilder;
+import org.apache.nemo.common.test.ExampleTestUtil;
+import org.apache.nemo.compiler.optimizer.policy.ConditionalLargeShufflePolicy;
+import org.apache.nemo.examples.beam.policy.*;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/AggressiveSpeculativeCloningPolicyParallelismFive.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/AggressiveSpeculativeCloningPolicyParallelismFive.java
index 31bd14bd9..0050d446b 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/AggressiveSpeculativeCloningPolicyParallelismFive.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/AggressiveSpeculativeCloningPolicyParallelismFive.java
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam.policy;
+package org.apache.nemo.examples.beam.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.AggressiveSpeculativeCloningPass;
-import edu.snu.nemo.compiler.optimizer.policy.DefaultPolicy;
-import edu.snu.nemo.compiler.optimizer.policy.Policy;
-import edu.snu.nemo.compiler.optimizer.policy.PolicyImpl;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.AggressiveSpeculativeCloningPass;
+import org.apache.nemo.compiler.optimizer.policy.DefaultPolicy;
+import org.apache.nemo.compiler.optimizer.policy.Policy;
+import org.apache.nemo.compiler.optimizer.policy.PolicyImpl;
 import org.apache.reef.tang.Injector;
 
 import java.util.List;
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/DataSkewPolicyParallelismFive.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/DataSkewPolicyParallelismFive.java
index 54d0950d8..f3f05f842 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/DataSkewPolicyParallelismFive.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/DataSkewPolicyParallelismFive.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam.policy;
+package org.apache.nemo.examples.beam.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.policy.DataSkewPolicy;
-import edu.snu.nemo.compiler.optimizer.policy.Policy;
-import edu.snu.nemo.compiler.optimizer.policy.PolicyImpl;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.policy.DataSkewPolicy;
+import org.apache.nemo.compiler.optimizer.policy.Policy;
+import org.apache.nemo.compiler.optimizer.policy.PolicyImpl;
 import org.apache.reef.tang.Injector;
 
 /**
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/DefaultPolicyParallelismFive.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/DefaultPolicyParallelismFive.java
index 5a82b44df..3a031f77e 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/DefaultPolicyParallelismFive.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/DefaultPolicyParallelismFive.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam.policy;
+package org.apache.nemo.examples.beam.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.policy.DefaultPolicy;
-import edu.snu.nemo.compiler.optimizer.policy.Policy;
-import edu.snu.nemo.compiler.optimizer.policy.PolicyImpl;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.policy.DefaultPolicy;
+import org.apache.nemo.compiler.optimizer.policy.Policy;
+import org.apache.nemo.compiler.optimizer.policy.PolicyImpl;
 import org.apache.reef.tang.Injector;
 
 /**
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/DisaggregationPolicyParallelismFive.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/DisaggregationPolicyParallelismFive.java
index 13ee36fa7..dfcfba969 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/DisaggregationPolicyParallelismFive.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/DisaggregationPolicyParallelismFive.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam.policy;
+package org.apache.nemo.examples.beam.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.policy.DisaggregationPolicy;
-import edu.snu.nemo.compiler.optimizer.policy.Policy;
-import edu.snu.nemo.compiler.optimizer.policy.PolicyImpl;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.policy.DisaggregationPolicy;
+import org.apache.nemo.compiler.optimizer.policy.Policy;
+import org.apache.nemo.compiler.optimizer.policy.PolicyImpl;
 import org.apache.reef.tang.Injector;
 
 /**
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/LargeShufflePolicyParallelismFive.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/LargeShufflePolicyParallelismFive.java
index 056cbdf82..978455265 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/LargeShufflePolicyParallelismFive.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/LargeShufflePolicyParallelismFive.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam.policy;
+package org.apache.nemo.examples.beam.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.policy.LargeShufflePolicy;
-import edu.snu.nemo.compiler.optimizer.policy.Policy;
-import edu.snu.nemo.compiler.optimizer.policy.PolicyImpl;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.policy.LargeShufflePolicy;
+import org.apache.nemo.compiler.optimizer.policy.Policy;
+import org.apache.nemo.compiler.optimizer.policy.PolicyImpl;
 import org.apache.reef.tang.Injector;
 
 /**
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/PolicyTestUtil.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/PolicyTestUtil.java
index cb60d7eac..a592802b7 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/PolicyTestUtil.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/PolicyTestUtil.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam.policy;
+package org.apache.nemo.examples.beam.policy;
 
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultParallelismPass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.DefaultParallelismPass;
 
 import java.util.List;
 
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/TransientResourcePolicyParallelismFive.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/TransientResourcePolicyParallelismFive.java
index 15f9f05b2..8886d0664 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/TransientResourcePolicyParallelismFive.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/TransientResourcePolicyParallelismFive.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam.policy;
+package org.apache.nemo.examples.beam.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.policy.PolicyImpl;
-import edu.snu.nemo.compiler.optimizer.policy.TransientResourcePolicy;
-import edu.snu.nemo.compiler.optimizer.policy.Policy;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.policy.PolicyImpl;
+import org.apache.nemo.compiler.optimizer.policy.TransientResourcePolicy;
+import org.apache.nemo.compiler.optimizer.policy.Policy;
 import org.apache.reef.tang.Injector;
 
 /**
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/TransientResourcePolicyParallelismTen.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/TransientResourcePolicyParallelismTen.java
index 5272589ea..fc5df684e 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/TransientResourcePolicyParallelismTen.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/TransientResourcePolicyParallelismTen.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam.policy;
+package org.apache.nemo.examples.beam.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.policy.PolicyImpl;
-import edu.snu.nemo.compiler.optimizer.policy.TransientResourcePolicy;
-import edu.snu.nemo.compiler.optimizer.policy.Policy;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.policy.PolicyImpl;
+import org.apache.nemo.compiler.optimizer.policy.TransientResourcePolicy;
+import org.apache.nemo.compiler.optimizer.policy.Policy;
 import org.apache.reef.tang.Injector;
 
 /**
diff --git a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/UpfrontSchedulingPolicyParallelismFive.java b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/UpfrontSchedulingPolicyParallelismFive.java
index a75603777..31f8426ad 100644
--- a/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/UpfrontSchedulingPolicyParallelismFive.java
+++ b/examples/beam/src/test/java/edu/snu/nemo/examples/beam/policy/UpfrontSchedulingPolicyParallelismFive.java
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.beam.policy;
+package org.apache.nemo.examples.beam.policy;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.UpfrontCloningPass;
-import edu.snu.nemo.compiler.optimizer.policy.DefaultPolicy;
-import edu.snu.nemo.compiler.optimizer.policy.Policy;
-import edu.snu.nemo.compiler.optimizer.policy.PolicyImpl;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.CompileTimePass;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.UpfrontCloningPass;
+import org.apache.nemo.compiler.optimizer.policy.DefaultPolicy;
+import org.apache.nemo.compiler.optimizer.policy.Policy;
+import org.apache.nemo.compiler.optimizer.policy.PolicyImpl;
 import org.apache.reef.tang.Injector;
 import java.util.List;
 
diff --git a/examples/spark/pom.xml b/examples/spark/pom.xml
index e78df98f2..ca09493f8 100644
--- a/examples/spark/pom.xml
+++ b/examples/spark/pom.xml
@@ -20,7 +20,7 @@ limitations under the License.
 
     <parent>
         <artifactId>nemo-project</artifactId>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../../</relativePath>
     </parent>
@@ -37,7 +37,7 @@ limitations under the License.
 
     <dependencies>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-compiler-frontend-spark</artifactId>
             <version>${project.version}</version>
         </dependency>
diff --git a/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaMapReduce.java b/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaMapReduce.java
index 7d19327b5..444dc6022 100644
--- a/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaMapReduce.java
+++ b/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaMapReduce.java
@@ -14,12 +14,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.spark;
+package org.apache.nemo.examples.spark;
 
-import edu.snu.nemo.compiler.frontend.spark.core.rdd.JavaPairRDD;
-import edu.snu.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
-import edu.snu.nemo.compiler.frontend.spark.core.JavaSparkContext;
-import edu.snu.nemo.compiler.frontend.spark.sql.SparkSession;
+import org.apache.nemo.compiler.frontend.spark.core.rdd.JavaPairRDD;
+import org.apache.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
+import org.apache.nemo.compiler.frontend.spark.core.JavaSparkContext;
+import org.apache.nemo.compiler.frontend.spark.sql.SparkSession;
 import scala.Tuple2;
 
 /**
diff --git a/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaSparkPi.java b/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaSparkPi.java
index 3be5d2b56..87875a73d 100644
--- a/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaSparkPi.java
+++ b/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaSparkPi.java
@@ -14,11 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.spark;
+package org.apache.nemo.examples.spark;
 
-import edu.snu.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
-import edu.snu.nemo.compiler.frontend.spark.core.JavaSparkContext;
-import edu.snu.nemo.compiler.frontend.spark.sql.SparkSession;
+import org.apache.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
+import org.apache.nemo.compiler.frontend.spark.core.JavaSparkContext;
+import org.apache.nemo.compiler.frontend.spark.sql.SparkSession;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaWordAndLineCount.java b/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaWordAndLineCount.java
index a8ac3b505..d680cb077 100644
--- a/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaWordAndLineCount.java
+++ b/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaWordAndLineCount.java
@@ -14,11 +14,11 @@
  * limitations under the License.
  */
 
-package edu.snu.nemo.examples.spark;
+package org.apache.nemo.examples.spark;
 
-import edu.snu.nemo.compiler.frontend.spark.core.rdd.JavaPairRDD;
-import edu.snu.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
-import edu.snu.nemo.compiler.frontend.spark.sql.SparkSession;
+import org.apache.nemo.compiler.frontend.spark.core.rdd.JavaPairRDD;
+import org.apache.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
+import org.apache.nemo.compiler.frontend.spark.sql.SparkSession;
 import scala.Tuple2;
 
 import java.io.BufferedWriter;
diff --git a/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaWordCount.java b/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaWordCount.java
index f214fafab..f88adbbf9 100644
--- a/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaWordCount.java
+++ b/examples/spark/src/main/java/edu/snu/nemo/examples/spark/JavaWordCount.java
@@ -14,11 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.spark;
+package org.apache.nemo.examples.spark;
 
-import edu.snu.nemo.compiler.frontend.spark.core.rdd.JavaPairRDD;
-import edu.snu.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
-import edu.snu.nemo.compiler.frontend.spark.sql.SparkSession;
+import org.apache.nemo.compiler.frontend.spark.core.rdd.JavaPairRDD;
+import org.apache.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
+import org.apache.nemo.compiler.frontend.spark.sql.SparkSession;
 import scala.Tuple2;
 
 import java.io.BufferedWriter;
diff --git a/examples/spark/src/main/java/edu/snu/nemo/examples/spark/sql/JavaSparkSQLExample.java b/examples/spark/src/main/java/edu/snu/nemo/examples/spark/sql/JavaSparkSQLExample.java
index 87db34e2b..2e7fcdd8e 100644
--- a/examples/spark/src/main/java/edu/snu/nemo/examples/spark/sql/JavaSparkSQLExample.java
+++ b/examples/spark/src/main/java/edu/snu/nemo/examples/spark/sql/JavaSparkSQLExample.java
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package edu.snu.nemo.examples.spark.sql;
+package org.apache.nemo.examples.spark.sql;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -23,9 +23,9 @@
 import java.util.Collections;
 import java.io.Serializable;
 
-import edu.snu.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
-import edu.snu.nemo.compiler.frontend.spark.sql.Dataset;
-import edu.snu.nemo.compiler.frontend.spark.sql.SparkSession;
+import org.apache.nemo.compiler.frontend.spark.core.rdd.JavaRDD;
+import org.apache.nemo.compiler.frontend.spark.sql.Dataset;
+import org.apache.nemo.compiler.frontend.spark.sql.SparkSession;
 import org.apache.spark.api.java.function.Function;
 import org.apache.spark.api.java.function.MapFunction;
 import org.apache.spark.sql.*;
diff --git a/examples/spark/src/main/java/edu/snu/nemo/examples/spark/sql/JavaUserDefinedTypedAggregation.java b/examples/spark/src/main/java/edu/snu/nemo/examples/spark/sql/JavaUserDefinedTypedAggregation.java
index c6bec6a5f..e64721768 100644
--- a/examples/spark/src/main/java/edu/snu/nemo/examples/spark/sql/JavaUserDefinedTypedAggregation.java
+++ b/examples/spark/src/main/java/edu/snu/nemo/examples/spark/sql/JavaUserDefinedTypedAggregation.java
@@ -15,10 +15,10 @@
  * limitations under the License.
  */
 
-package edu.snu.nemo.examples.spark.sql;
+package org.apache.nemo.examples.spark.sql;
 
-import edu.snu.nemo.compiler.frontend.spark.sql.Dataset;
-import edu.snu.nemo.compiler.frontend.spark.sql.SparkSession;
+import org.apache.nemo.compiler.frontend.spark.sql.Dataset;
+import org.apache.nemo.compiler.frontend.spark.sql.SparkSession;
 import org.apache.spark.sql.Encoder;
 import org.apache.spark.sql.Encoders;
 import org.apache.spark.sql.TypedColumn;
diff --git a/examples/spark/src/main/java/edu/snu/nemo/examples/spark/sql/JavaUserDefinedUntypedAggregation.java b/examples/spark/src/main/java/edu/snu/nemo/examples/spark/sql/JavaUserDefinedUntypedAggregation.java
index df195d646..e00724dd5 100644
--- a/examples/spark/src/main/java/edu/snu/nemo/examples/spark/sql/JavaUserDefinedUntypedAggregation.java
+++ b/examples/spark/src/main/java/edu/snu/nemo/examples/spark/sql/JavaUserDefinedUntypedAggregation.java
@@ -15,10 +15,10 @@
  * limitations under the License.
  */
 
-package edu.snu.nemo.examples.spark.sql;
+package org.apache.nemo.examples.spark.sql;
 
-import edu.snu.nemo.compiler.frontend.spark.sql.Dataset;
-import edu.snu.nemo.compiler.frontend.spark.sql.SparkSession;
+import org.apache.nemo.compiler.frontend.spark.sql.Dataset;
+import org.apache.nemo.compiler.frontend.spark.sql.SparkSession;
 import org.apache.spark.sql.Row;
 import org.apache.spark.sql.expressions.MutableAggregationBuffer;
 import org.apache.spark.sql.expressions.UserDefinedAggregateFunction;
diff --git a/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkALS.scala b/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkALS.scala
index 9b3b1ed39..0fc32b37c 100644
--- a/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkALS.scala
+++ b/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkALS.scala
@@ -16,9 +16,9 @@
  */
 
 // scalastyle:off println
-package edu.snu.nemo.examples.spark;
+package org.apache.nemo.examples.spark;
 
-import edu.snu.nemo.compiler.frontend.spark.sql.SparkSession
+import org.apache.nemo.compiler.frontend.spark.sql.SparkSession
 import org.apache.commons.lang.SerializationUtils
 import org.apache.commons.math3.linear._
 import org.apache.spark.SparkEnv
diff --git a/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkCachingWordCount.scala b/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkCachingWordCount.scala
index 1ec932cfc..3ce3cd131 100644
--- a/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkCachingWordCount.scala
+++ b/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkCachingWordCount.scala
@@ -16,9 +16,9 @@
  */
 
 // scalastyle:off println
-package edu.snu.nemo.examples.spark
+package org.apache.nemo.examples.spark
 
-import edu.snu.nemo.compiler.frontend.spark.sql.SparkSession
+import org.apache.nemo.compiler.frontend.spark.sql.SparkSession
 
 /**
   * Computes counts of each data key.
diff --git a/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkPi.scala b/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkPi.scala
index ded7f6236..64e6f6dbb 100644
--- a/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkPi.scala
+++ b/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkPi.scala
@@ -16,9 +16,9 @@
  */
 
 // scalastyle:off println
-package edu.snu.nemo.examples.spark;
+package org.apache.nemo.examples.spark;
 
-import edu.snu.nemo.compiler.frontend.spark.sql.SparkSession
+import org.apache.nemo.compiler.frontend.spark.sql.SparkSession
 
 import scala.math.random
 
diff --git a/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkWordCount.scala b/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkWordCount.scala
index 8919c4263..2e1fe3d0c 100644
--- a/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkWordCount.scala
+++ b/examples/spark/src/main/scala/edu/snu/nemo/examples/spark/SparkWordCount.scala
@@ -16,9 +16,9 @@
  */
 
 // scalastyle:off println
-package edu.snu.nemo.examples.spark
+package org.apache.nemo.examples.spark
 
-import edu.snu.nemo.compiler.frontend.spark.sql.SparkSession
+import org.apache.nemo.compiler.frontend.spark.sql.SparkSession
 
 /**
   * Computes counts of each data key.
diff --git a/examples/spark/src/test/java/edu/snu/nemo/examples/spark/MRJava.java b/examples/spark/src/test/java/edu/snu/nemo/examples/spark/MRJava.java
index 618b89ac8..f33b8605f 100644
--- a/examples/spark/src/test/java/edu/snu/nemo/examples/spark/MRJava.java
+++ b/examples/spark/src/test/java/edu/snu/nemo/examples/spark/MRJava.java
@@ -14,12 +14,12 @@
  * limitations under the License.
  */
 
-package edu.snu.nemo.examples.spark;
+package org.apache.nemo.examples.spark;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.test.ArgBuilder;
-import edu.snu.nemo.common.test.ExampleTestUtil;
-import edu.snu.nemo.compiler.optimizer.policy.DefaultPolicy;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.test.ArgBuilder;
+import org.apache.nemo.common.test.ExampleTestUtil;
+import org.apache.nemo.compiler.optimizer.policy.DefaultPolicy;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/examples/spark/src/test/java/edu/snu/nemo/examples/spark/SparkJava.java b/examples/spark/src/test/java/edu/snu/nemo/examples/spark/SparkJava.java
index d68022daf..72c35e9fb 100644
--- a/examples/spark/src/test/java/edu/snu/nemo/examples/spark/SparkJava.java
+++ b/examples/spark/src/test/java/edu/snu/nemo/examples/spark/SparkJava.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.spark;
+package org.apache.nemo.examples.spark;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.test.ArgBuilder;
-import edu.snu.nemo.common.test.ExampleTestUtil;
-import edu.snu.nemo.compiler.optimizer.policy.DefaultPolicy;
-import edu.snu.nemo.examples.spark.sql.JavaUserDefinedTypedAggregation;
-import edu.snu.nemo.examples.spark.sql.JavaUserDefinedUntypedAggregation;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.test.ArgBuilder;
+import org.apache.nemo.common.test.ExampleTestUtil;
+import org.apache.nemo.compiler.optimizer.policy.DefaultPolicy;
+import org.apache.nemo.examples.spark.sql.JavaUserDefinedTypedAggregation;
+import org.apache.nemo.examples.spark.sql.JavaUserDefinedUntypedAggregation;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/examples/spark/src/test/java/edu/snu/nemo/examples/spark/SparkScala.java b/examples/spark/src/test/java/edu/snu/nemo/examples/spark/SparkScala.java
index fdc9e6d62..4c77656e2 100644
--- a/examples/spark/src/test/java/edu/snu/nemo/examples/spark/SparkScala.java
+++ b/examples/spark/src/test/java/edu/snu/nemo/examples/spark/SparkScala.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.examples.spark;
+package org.apache.nemo.examples.spark;
 
-import edu.snu.nemo.client.JobLauncher;
-import edu.snu.nemo.common.test.ArgBuilder;
-import edu.snu.nemo.common.test.ExampleTestUtil;
-import edu.snu.nemo.compiler.optimizer.policy.DefaultPolicy;
+import org.apache.nemo.client.JobLauncher;
+import org.apache.nemo.common.test.ArgBuilder;
+import org.apache.nemo.common.test.ExampleTestUtil;
+import org.apache.nemo.compiler.optimizer.policy.DefaultPolicy;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/log4j.properties b/log4j.properties
index 55bcb7905..380aba6f2 100644
--- a/log4j.properties
+++ b/log4j.properties
@@ -14,8 +14,8 @@
 #
 log4j.rootLogger=INFO, STDOUT
 
-log4j.logger.edu.snu.nemo.runtime.master.MetricManagerMaster=INFO, METRIC
-log4j.additivity.edu.snu.nemo.runtime.master.MetricManagerMaster=false
+log4j.logger.org.apache.nemo.runtime.master.MetricManagerMaster=INFO, METRIC
+log4j.additivity.org.apache.nemo.runtime.master.MetricManagerMaster=false
 
 log4j.appender.STDOUT=org.apache.log4j.ConsoleAppender
 log4j.appender.STDOUT.layout=org.apache.log4j.PatternLayout
diff --git a/pom.xml b/pom.xml
index fce2d402c..33ff9fe39 100644
--- a/pom.xml
+++ b/pom.xml
@@ -18,7 +18,7 @@ limitations under the License.
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
-    <groupId>edu.snu.nemo</groupId>
+    <groupId>org.apache.nemo</groupId>
     <artifactId>nemo-project</artifactId>
     <version>0.1-SNAPSHOT</version>
     <packaging>pom</packaging>
@@ -230,7 +230,7 @@ limitations under the License.
                 <artifactId>maven-javadoc-plugin</artifactId>
                 <version>3.0.0</version>
                 <configuration>
-                    <excludePackageNames>*.edu.snu.nemo.runtime.common.comm</excludePackageNames>
+                    <excludePackageNames>*.org.apache.nemo.runtime.common.comm</excludePackageNames>
                     <outputDirectory>docs/apidocs</outputDirectory>
                     <reportOutputDirectory>docs/apidocs</reportOutputDirectory>
                 </configuration>
diff --git a/runtime/common/pom.xml b/runtime/common/pom.xml
index 97fca5ba1..d92ac9ab7 100644
--- a/runtime/common/pom.xml
+++ b/runtime/common/pom.xml
@@ -19,7 +19,7 @@ limitations under the License.
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <artifactId>nemo-project</artifactId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../../</relativePath>
@@ -37,12 +37,12 @@ limitations under the License.
 
     <dependencies>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-common</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-conf</artifactId>
             <version>${project.version}</version>
         </dependency>
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/NativeChannelImplementationSelector.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/NativeChannelImplementationSelector.java
index 974e8e31e..8ab3008a9 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/NativeChannelImplementationSelector.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/NativeChannelImplementationSelector.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common;
+package org.apache.nemo.runtime.common;
 
 import io.netty.channel.Channel;
 import io.netty.channel.EventLoopGroup;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/NettyChannelImplementationSelector.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/NettyChannelImplementationSelector.java
index 3099796b5..2a2e1d69f 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/NettyChannelImplementationSelector.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/NettyChannelImplementationSelector.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common;
+package org.apache.nemo.runtime.common;
 
 import io.netty.channel.Channel;
 import io.netty.channel.EventLoopGroup;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/NioChannelImplementationSelector.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/NioChannelImplementationSelector.java
index e1ce3b661..1946f7657 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/NioChannelImplementationSelector.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/NioChannelImplementationSelector.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common;
+package org.apache.nemo.runtime.common;
 
 import io.netty.channel.Channel;
 import io.netty.channel.EventLoopGroup;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/ReplyFutureMap.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/ReplyFutureMap.java
index 954a65be9..72dace723 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/ReplyFutureMap.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/ReplyFutureMap.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common;
+package org.apache.nemo.runtime.common;
 
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ConcurrentHashMap;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/RuntimeIdManager.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/RuntimeIdManager.java
index 03ee40287..b69dcb237 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/RuntimeIdManager.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/RuntimeIdManager.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common;
+package org.apache.nemo.runtime.common;
 
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicLong;
@@ -48,7 +48,7 @@ public static String generatePhysicalPlanId() {
   }
 
   /**
-   * Generates the ID for {@link edu.snu.nemo.runtime.common.plan.Stage}.
+   * Generates the ID for {@link org.apache.nemo.runtime.common.plan.Stage}.
    *
    * @param stageId stage ID in numeric form.
    * @return the generated ID
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/RuntimeTestUtil.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/RuntimeTestUtil.java
index 0a75b6fc5..b88660ca9 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/RuntimeTestUtil.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/RuntimeTestUtil.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common;
+package org.apache.nemo.runtime.common;
 
-import edu.snu.nemo.common.Pair;
+import org.apache.nemo.common.Pair;
 
 import java.util.*;
 import java.util.stream.Collectors;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/eventhandler/DynamicOptimizationEvent.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/eventhandler/DynamicOptimizationEvent.java
index 341f0d164..58d674531 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/eventhandler/DynamicOptimizationEvent.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/eventhandler/DynamicOptimizationEvent.java
@@ -16,11 +16,11 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package edu.snu.nemo.runtime.common.eventhandler;
+package org.apache.nemo.runtime.common.eventhandler;
 
-import edu.snu.nemo.common.eventhandler.RuntimeEvent;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.common.eventhandler.RuntimeEvent;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.common.plan.StageEdge;
 
 /**
  * An event for triggering dynamic optimization.
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/eventhandler/DynamicOptimizationEventHandler.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/eventhandler/DynamicOptimizationEventHandler.java
index 9cd4ca23c..1ed7ddf43 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/eventhandler/DynamicOptimizationEventHandler.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/eventhandler/DynamicOptimizationEventHandler.java
@@ -16,13 +16,13 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package edu.snu.nemo.runtime.common.eventhandler;
+package org.apache.nemo.runtime.common.eventhandler;
 
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.eventhandler.RuntimeEventHandler;
-import edu.snu.nemo.runtime.common.optimizer.RunTimeOptimizer;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.eventhandler.RuntimeEventHandler;
+import org.apache.nemo.runtime.common.optimizer.RunTimeOptimizer;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.common.plan.StageEdge;
 import org.apache.reef.wake.impl.PubSubEventHandler;
 
 import javax.inject.Inject;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/eventhandler/UpdatePhysicalPlanEvent.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/eventhandler/UpdatePhysicalPlanEvent.java
index a8f701be1..64ae096a0 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/eventhandler/UpdatePhysicalPlanEvent.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/eventhandler/UpdatePhysicalPlanEvent.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.eventhandler;
+package org.apache.nemo.runtime.common.eventhandler;
 
-import edu.snu.nemo.common.eventhandler.CompilerEvent;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.common.eventhandler.CompilerEvent;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
 
 /**
  * An event for updating the physical plan in the scheduler.
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/exception/AbsentBlockException.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/exception/AbsentBlockException.java
index bc7e5e5e3..4d54d49ef 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/exception/AbsentBlockException.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/exception/AbsentBlockException.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.exception;
+package org.apache.nemo.runtime.common.exception;
 
-import edu.snu.nemo.runtime.common.state.BlockState;
+import org.apache.nemo.runtime.common.state.BlockState;
 
 /**
  * An exception which represents the requested block is neither AVAILABLE nor IN_PROGRESS.
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/exception/PlanAppenderException.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/exception/PlanAppenderException.java
index 6ee98aa35..17d192261 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/exception/PlanAppenderException.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/exception/PlanAppenderException.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.exception;
+package org.apache.nemo.runtime.common.exception;
 
 /**
  * An exception which represents exception during appending plans.
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/FailedMessageSender.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/FailedMessageSender.java
index 1218b1ec4..1f3278eb4 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/FailedMessageSender.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/FailedMessageSender.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message;
+package org.apache.nemo.runtime.common.message;
 
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
 
 import java.util.concurrent.CompletableFuture;
 
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageContext.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageContext.java
index 061715ee3..29682823c 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageContext.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageContext.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message;
+package org.apache.nemo.runtime.common.message;
 
 /**
  * This class sends a reply message from {@link MessageListener}.
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageEnvironment.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageEnvironment.java
index c4c5b7b45..ca58f639a 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageEnvironment.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageEnvironment.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message;
+package org.apache.nemo.runtime.common.message;
 
-import edu.snu.nemo.runtime.common.message.ncs.NcsMessageEnvironment;
+import org.apache.nemo.runtime.common.message.ncs.NcsMessageEnvironment;
 import org.apache.reef.tang.annotations.DefaultImplementation;
 
 import java.util.concurrent.Future;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageListener.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageListener.java
index 18993be74..db349fdb4 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageListener.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageListener.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message;
+package org.apache.nemo.runtime.common.message;
 
 
 /**
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageParameters.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageParameters.java
index 01d13c198..a72719c69 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageParameters.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageParameters.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message;
+package org.apache.nemo.runtime.common.message;
 
 import org.apache.reef.tang.annotations.Name;
 import org.apache.reef.tang.annotations.NamedParameter;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageSender.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageSender.java
index 6b91b7a5c..b021b3e67 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageSender.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/MessageSender.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message;
+package org.apache.nemo.runtime.common.message;
 
 import java.util.concurrent.CompletableFuture;
 
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/PersistentConnectionToMasterMap.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/PersistentConnectionToMasterMap.java
index 6d362f5af..9a07e9b2e 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/PersistentConnectionToMasterMap.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/PersistentConnectionToMasterMap.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message;
+package org.apache.nemo.runtime.common.message;
 
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.common.exception.NodeConnectionException;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.common.exception.NodeConnectionException;
 
 import javax.inject.Inject;
 import java.util.HashMap;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageClient.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageClient.java
index 9bd1335c6..a55fbc1a4 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageClient.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageClient.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message.grpc;
+package org.apache.nemo.runtime.common.message.grpc;
 
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.comm.MessageServiceGrpc;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.comm.MessageServiceGrpc;
 import io.grpc.ManagedChannel;
 import io.grpc.ManagedChannelBuilder;
 import io.grpc.StatusRuntimeException;
@@ -35,8 +35,8 @@
  * ip address of the target receiver, and then tries to connect to that receiver. After the connection established,
  * callers can communicates with the receiver with two methods, send and request.
  *
- * @see edu.snu.nemo.runtime.common.message.MessageSender#send(Object)
- * @see edu.snu.nemo.runtime.common.message.MessageSender#request(Object)
+ * @see org.apache.nemo.runtime.common.message.MessageSender#send(Object)
+ * @see org.apache.nemo.runtime.common.message.MessageSender#request(Object)
  */
 final class GrpcMessageClient {
 
@@ -92,7 +92,7 @@ private void setupChannel(final InetSocketAddress ipAddress) throws Exception {
   }
 
   /**
-   * Issue {@link edu.snu.nemo.runtime.common.message.MessageSender#send(Object)} rpc call.
+   * Issue {@link org.apache.nemo.runtime.common.message.MessageSender#send(Object)} rpc call.
    *
    * @param message a message to send
    */
@@ -108,7 +108,7 @@ void send(final ControlMessage.Message message) {
   }
 
   /**
-   * Issue {@link edu.snu.nemo.runtime.common.message.MessageSender#request(Object)} rpc call.
+   * Issue {@link org.apache.nemo.runtime.common.message.MessageSender#request(Object)} rpc call.
    *
    * @param message a message to request
    * @return a future containing response message
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageContext.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageContext.java
index f8d72de85..6379be091 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageContext.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageContext.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message.grpc;
+package org.apache.nemo.runtime.common.message.grpc;
 
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageContext;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageContext;
 import io.grpc.stub.StreamObserver;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageEnvironment.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageEnvironment.java
index 8829d2bc9..f5d98e53d 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageEnvironment.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageEnvironment.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message.grpc;
+package org.apache.nemo.runtime.common.message.grpc;
 
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.MessageListener;
-import edu.snu.nemo.runtime.common.message.MessageParameters;
-import edu.snu.nemo.runtime.common.message.MessageSender;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.MessageListener;
+import org.apache.nemo.runtime.common.message.MessageParameters;
+import org.apache.nemo.runtime.common.message.MessageSender;
 import org.apache.reef.io.network.naming.NameResolver;
 import org.apache.reef.tang.annotations.Parameter;
 import org.apache.reef.wake.IdentifierFactory;
@@ -33,7 +33,7 @@
 
 /**
  * This class is installed when every node, containing both driver and evaluator, has been started, and setup
- * grpc environment to implement RPC semantics defined in {@link edu.snu.nemo.runtime.common.message} package.
+ * grpc environment to implement RPC semantics defined in {@link org.apache.nemo.runtime.common.message} package.
  * For each GrpcMessageEnvironment, there are a single {@link GrpcMessageServer} and multiple {@link GrpcMessageClient},
  * which are responsible for responding replies for messages from other clients, and for transferring messages
  * to other servers, respectively.
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageSender.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageSender.java
index 6b3ea9bde..09d8afdb3 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageSender.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageSender.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message.grpc;
+package org.apache.nemo.runtime.common.message.grpc;
 
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageSender;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageSender;
 
 import java.util.concurrent.CompletableFuture;
 
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageServer.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageServer.java
index a366fa437..64e5067df 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageServer.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/grpc/GrpcMessageServer.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message.grpc;
+package org.apache.nemo.runtime.common.message.grpc;
 
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.comm.GrpcMessageService;
-import edu.snu.nemo.runtime.common.comm.MessageServiceGrpc;
-import edu.snu.nemo.runtime.common.message.MessageListener;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.comm.GrpcMessageService;
+import org.apache.nemo.runtime.common.comm.MessageServiceGrpc;
+import org.apache.nemo.runtime.common.message.MessageListener;
 import io.grpc.Server;
 import io.grpc.ServerBuilder;
 import io.grpc.stub.StreamObserver;
@@ -35,7 +35,7 @@
 /**
  * Represent the RPC server that is responsible for responding all messages from other clients. The server tries to
  * bind to a random port, and registers the bounded ip address to the name server with the localSenderId
- * (which is defined in {@link edu.snu.nemo.runtime.common.message.MessageParameters.SenderId}).
+ * (which is defined in {@link org.apache.nemo.runtime.common.message.MessageParameters.SenderId}).
  *
  * The listeners, implementations of {@link MessageListener}, should be setup on this class, and then the incoming
  * messages, which contain corresponding listener id as property, are properly dispatched to the registered
@@ -43,8 +43,8 @@
  *
  * The currently implemented RPC methods are send and request.
  *
- * @see edu.snu.nemo.runtime.common.message.MessageSender#send(Object)
- * @see edu.snu.nemo.runtime.common.message.MessageSender#request(Object)
+ * @see org.apache.nemo.runtime.common.message.MessageSender#send(Object)
+ * @see org.apache.nemo.runtime.common.message.MessageSender#request(Object)
  */
 final class GrpcMessageServer {
 
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageContext.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageContext.java
index 64ce6c9dd..d468cc4c6 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageContext.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageContext.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message.local;
+package org.apache.nemo.runtime.common.message.local;
 
-import edu.snu.nemo.runtime.common.message.MessageContext;
+import org.apache.nemo.runtime.common.message.MessageContext;
 
 import java.util.Optional;
 
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageDispatcher.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageDispatcher.java
index 2db27bbb9..60e3a448b 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageDispatcher.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageDispatcher.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message.local;
+package org.apache.nemo.runtime.common.message.local;
 
-import edu.snu.nemo.runtime.common.message.MessageListener;
-import edu.snu.nemo.runtime.common.message.MessageSender;
+import org.apache.nemo.runtime.common.message.MessageListener;
+import org.apache.nemo.runtime.common.message.MessageSender;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
 import org.apache.reef.tang.exceptions.InjectionException;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageEnvironment.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageEnvironment.java
index 3a138d616..c7f059b95 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageEnvironment.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageEnvironment.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message.local;
+package org.apache.nemo.runtime.common.message.local;
 
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.MessageListener;
-import edu.snu.nemo.runtime.common.message.MessageParameters;
-import edu.snu.nemo.runtime.common.message.MessageSender;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.MessageListener;
+import org.apache.nemo.runtime.common.message.MessageParameters;
+import org.apache.nemo.runtime.common.message.MessageSender;
 import org.apache.reef.tang.Configuration;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageSender.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageSender.java
index 60cee0cbd..1407dcc19 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageSender.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/local/LocalMessageSender.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message.local;
+package org.apache.nemo.runtime.common.message.local;
 
-import edu.snu.nemo.runtime.common.message.MessageSender;
+import org.apache.nemo.runtime.common.message.MessageSender;
 
 import java.util.concurrent.CompletableFuture;
 
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/ControlMessageCodec.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/ControlMessageCodec.java
index 609c6ce6b..c0ed316ad 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/ControlMessageCodec.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/ControlMessageCodec.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message.ncs;
+package org.apache.nemo.runtime.common.message.ncs;
 
 import com.google.protobuf.InvalidProtocolBufferException;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
 import org.apache.reef.io.serialization.Codec;
 
 /**
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/NcsMessageContext.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/NcsMessageContext.java
index beefcef2f..7f5c562c8 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/NcsMessageContext.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/NcsMessageContext.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message.ncs;
+package org.apache.nemo.runtime.common.message.ncs;
 
-import edu.snu.nemo.runtime.common.message.MessageContext;
+import org.apache.nemo.runtime.common.message.MessageContext;
 import org.apache.reef.exception.evaluator.NetworkException;
 import org.apache.reef.io.network.Connection;
 import org.apache.reef.io.network.ConnectionFactory;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/NcsMessageEnvironment.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/NcsMessageEnvironment.java
index fc05ad886..813bcbb8b 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/NcsMessageEnvironment.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/NcsMessageEnvironment.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message.ncs;
+package org.apache.nemo.runtime.common.message.ncs;
 
-import edu.snu.nemo.runtime.common.ReplyFutureMap;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.*;
+import org.apache.nemo.runtime.common.ReplyFutureMap;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.*;
 import org.apache.reef.exception.evaluator.NetworkException;
 import org.apache.reef.io.network.Connection;
 import org.apache.reef.io.network.ConnectionFactory;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/NcsMessageSender.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/NcsMessageSender.java
index 517fe5490..61059741d 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/NcsMessageSender.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/message/ncs/NcsMessageSender.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message.ncs;
+package org.apache.nemo.runtime.common.message.ncs;
 
-import edu.snu.nemo.runtime.common.ReplyFutureMap;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageSender;
+import org.apache.nemo.runtime.common.ReplyFutureMap;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageSender;
 import org.apache.reef.io.network.Connection;
 
 import java.util.concurrent.CompletableFuture;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/DataTransferEvent.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/DataTransferEvent.java
index 3f282445c..53df311d7 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/DataTransferEvent.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/DataTransferEvent.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.metric;
+package org.apache.nemo.runtime.common.metric;
 
 /**
  * Event for data transfer, such as data read or write.
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/Event.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/Event.java
index 0746bd2b5..da1dfaff3 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/Event.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/Event.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.metric;
+package org.apache.nemo.runtime.common.metric;
 
 import java.io.Serializable;
 
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/JobMetric.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/JobMetric.java
index f9957a1f8..d25775625 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/JobMetric.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/JobMetric.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.metric;
+package org.apache.nemo.runtime.common.metric;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.common.state.PlanState;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.common.state.PlanState;
 
 import java.io.IOException;
 import java.util.ArrayList;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/Metric.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/Metric.java
index 1d44c0867..a8d8a3ad2 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/Metric.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/Metric.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.metric;
+package org.apache.nemo.runtime.common.metric;
 
 /**
  * Interface for all metrics.
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/StageMetric.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/StageMetric.java
index ff174a961..d3e758d14 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/StageMetric.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/StageMetric.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.metric;
+package org.apache.nemo.runtime.common.metric;
 
-import edu.snu.nemo.runtime.common.plan.Stage;
-import edu.snu.nemo.runtime.common.state.StageState;
+import org.apache.nemo.runtime.common.plan.Stage;
+import org.apache.nemo.runtime.common.state.StageState;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/StateMetric.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/StateMetric.java
index 2744d5886..b4d0dbad8 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/StateMetric.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/StateMetric.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.metric;
+package org.apache.nemo.runtime.common.metric;
 
 import java.io.Serializable;
 import java.util.List;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/StateTransitionEvent.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/StateTransitionEvent.java
index abf164c5b..00d01b712 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/StateTransitionEvent.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/StateTransitionEvent.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.metric;
+package org.apache.nemo.runtime.common.metric;
 
 import java.io.Serializable;
 
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/TaskMetric.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/TaskMetric.java
index aaa2337a0..834b11b91 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/TaskMetric.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/metric/TaskMetric.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.metric;
+package org.apache.nemo.runtime.common.metric;
 
-import edu.snu.nemo.runtime.common.state.TaskState;
+import org.apache.nemo.runtime.common.state.TaskState;
 import org.apache.commons.lang3.SerializationUtils;
 
 import java.util.ArrayList;
@@ -25,7 +25,7 @@
 import org.slf4j.LoggerFactory;
 
 /**
- * Metric class for {@link edu.snu.nemo.runtime.common.plan.Task}.
+ * Metric class for {@link org.apache.nemo.runtime.common.plan.Task}.
  */
 public class TaskMetric implements StateMetric<TaskState.State> {
   private String id;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/optimizer/RunTimeOptimizer.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/optimizer/RunTimeOptimizer.java
index 0de585ff4..eec853142 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/optimizer/RunTimeOptimizer.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/optimizer/RunTimeOptimizer.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.optimizer;
+package org.apache.nemo.runtime.common.optimizer;
 
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.runtime.common.optimizer.pass.runtime.DataSkewRuntimePass;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.runtime.common.optimizer.pass.runtime.DataSkewRuntimePass;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.common.plan.StageEdge;
 
 import java.util.*;
 
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/optimizer/pass/runtime/DataSkewRuntimePass.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/optimizer/pass/runtime/DataSkewRuntimePass.java
index a2b05f55a..490293aa2 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/optimizer/pass/runtime/DataSkewRuntimePass.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/optimizer/pass/runtime/DataSkewRuntimePass.java
@@ -13,20 +13,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.optimizer.pass.runtime;
+package org.apache.nemo.runtime.common.optimizer.pass.runtime;
 
 import com.google.common.annotations.VisibleForTesting;
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.RuntimeEventHandler;
-
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.common.KeyRange;
-import edu.snu.nemo.common.HashRange;
-import edu.snu.nemo.runtime.common.eventhandler.DynamicOptimizationEventHandler;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.common.plan.Stage;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.RuntimeEventHandler;
+
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.common.KeyRange;
+import org.apache.nemo.common.HashRange;
+import org.apache.nemo.runtime.common.eventhandler.DynamicOptimizationEventHandler;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.common.plan.Stage;
+import org.apache.nemo.runtime.common.plan.StageEdge;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/optimizer/pass/runtime/RuntimePass.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/optimizer/pass/runtime/RuntimePass.java
index f30403f84..5006f61e3 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/optimizer/pass/runtime/RuntimePass.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/optimizer/pass/runtime/RuntimePass.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.optimizer.pass.runtime;
+package org.apache.nemo.runtime.common.optimizer.pass.runtime;
 
-import edu.snu.nemo.common.eventhandler.RuntimeEventHandler;
-import edu.snu.nemo.common.pass.Pass;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.common.eventhandler.RuntimeEventHandler;
+import org.apache.nemo.common.pass.Pass;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
 
 import java.util.Set;
 import java.util.function.BiFunction;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/PhysicalPlan.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/PhysicalPlan.java
index 0a8bf5f01..67f9de304 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/PhysicalPlan.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/PhysicalPlan.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.plan;
+package org.apache.nemo.runtime.common.plan;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.vertex.IRVertex;
 
 import java.io.Serializable;
 import java.util.HashMap;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/PhysicalPlanGenerator.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/PhysicalPlanGenerator.java
index 6ecb7c486..9fe27b4ea 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/PhysicalPlanGenerator.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/PhysicalPlanGenerator.java
@@ -13,25 +13,25 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.plan;
-
-import edu.snu.nemo.common.ir.Readable;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupPropertyValue;
-import edu.snu.nemo.common.ir.executionproperty.ExecutionPropertyMap;
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
-import edu.snu.nemo.common.ir.vertex.*;
-import edu.snu.nemo.common.ir.vertex.executionproperty.DynamicOptimizationProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ScheduleGroupProperty;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.exception.IllegalVertexOperationException;
-import edu.snu.nemo.common.exception.PhysicalPlanGenerationException;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
+package org.apache.nemo.runtime.common.plan;
+
+import org.apache.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupPropertyValue;
+import org.apache.nemo.common.ir.executionproperty.ExecutionPropertyMap;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.vertex.*;
+import org.apache.nemo.common.ir.vertex.executionproperty.DynamicOptimizationProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ScheduleGroupProperty;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.exception.IllegalVertexOperationException;
+import org.apache.nemo.common.exception.PhysicalPlanGenerationException;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
 import org.apache.commons.lang3.mutable.MutableInt;
 import org.apache.reef.tang.annotations.Parameter;
 import org.slf4j.Logger;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/RuntimeEdge.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/RuntimeEdge.java
index 05406a930..695ce905a 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/RuntimeEdge.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/RuntimeEdge.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.plan;
+package org.apache.nemo.runtime.common.plan;
 
-import edu.snu.nemo.common.dag.Edge;
-import edu.snu.nemo.common.dag.Vertex;
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
-import edu.snu.nemo.common.ir.executionproperty.ExecutionPropertyMap;
+import org.apache.nemo.common.dag.Edge;
+import org.apache.nemo.common.dag.Vertex;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.ExecutionPropertyMap;
 
 import java.io.Serializable;
 import java.util.Optional;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/Stage.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/Stage.java
index 9882f88cf..603bb5404 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/Stage.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/Stage.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.plan;
+package org.apache.nemo.runtime.common.plan;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.Vertex;
-import edu.snu.nemo.common.ir.Readable;
-import edu.snu.nemo.common.ir.executionproperty.ExecutionPropertyMap;
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ScheduleGroupProperty;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.Vertex;
+import org.apache.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.executionproperty.ExecutionPropertyMap;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ScheduleGroupProperty;
 import org.apache.commons.lang3.SerializationUtils;
 
 import java.io.Serializable;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/StageEdge.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/StageEdge.java
index 97e4658b4..596d9227a 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/StageEdge.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/StageEdge.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.plan;
+package org.apache.nemo.runtime.common.plan;
 
 import com.google.common.annotations.VisibleForTesting;
-import edu.snu.nemo.common.HashRange;
-import edu.snu.nemo.common.KeyRange;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.executionproperty.ExecutionPropertyMap;
+import org.apache.nemo.common.HashRange;
+import org.apache.nemo.common.KeyRange;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.executionproperty.ExecutionPropertyMap;
 import org.apache.commons.lang3.builder.HashCodeBuilder;
 
 import java.util.HashMap;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/StagePartitioner.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/StagePartitioner.java
index 588e5d485..b829d33cd 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/StagePartitioner.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/StagePartitioner.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.plan;
+package org.apache.nemo.runtime.common.plan;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
 import net.jcip.annotations.ThreadSafe;
 import org.apache.commons.lang3.mutable.MutableInt;
 import org.apache.reef.annotations.audience.DriverSide;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/Task.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/Task.java
index 58fd314f3..abfaacf0b 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/Task.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/plan/Task.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.plan;
+package org.apache.nemo.runtime.common.plan;
 
-import edu.snu.nemo.common.ir.Readable;
-import edu.snu.nemo.common.ir.executionproperty.ExecutionPropertyMap;
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.executionproperty.ExecutionPropertyMap;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
 
 import java.io.Serializable;
 import java.util.*;
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/BlockState.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/BlockState.java
index b21751ca1..c4c8d1792 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/BlockState.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/BlockState.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.state;
+package org.apache.nemo.runtime.common.state;
 
-import edu.snu.nemo.common.StateMachine;
+import org.apache.nemo.common.StateMachine;
 
 /**
  * Represents the states of a whole data(a task output).
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/PlanState.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/PlanState.java
index 7edafab6d..9d8dc44bc 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/PlanState.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/PlanState.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.state;
+package org.apache.nemo.runtime.common.state;
 
-import edu.snu.nemo.common.StateMachine;
+import org.apache.nemo.common.StateMachine;
 
 /**
  * Represents the states and their transitions of a physical plan.
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/StageState.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/StageState.java
index 1a63f0ea2..580a667ec 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/StageState.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/StageState.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.state;
+package org.apache.nemo.runtime.common.state;
 
-import edu.snu.nemo.common.StateMachine;
+import org.apache.nemo.common.StateMachine;
 
 /**
  * Represents the states and their transitions of a stage.
diff --git a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/TaskState.java b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/TaskState.java
index c40e89d02..d1f7c90fe 100644
--- a/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/TaskState.java
+++ b/runtime/common/src/main/java/edu/snu/nemo/runtime/common/state/TaskState.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.state;
+package org.apache.nemo.runtime.common.state;
 
-import edu.snu.nemo.common.StateMachine;
+import org.apache.nemo.common.StateMachine;
 
 /**
  * Represents the states and their transitions of a task.
diff --git a/runtime/common/src/main/proto/ControlMessage.proto b/runtime/common/src/main/proto/ControlMessage.proto
index 0ad5a2962..fc855f1eb 100644
--- a/runtime/common/src/main/proto/ControlMessage.proto
+++ b/runtime/common/src/main/proto/ControlMessage.proto
@@ -16,7 +16,7 @@ syntax = "proto2";
 
 package protobuf;
 
-option java_package = "edu.snu.nemo.runtime.common.comm";
+option java_package = "org.apache.nemo.runtime.common.comm";
 option java_outer_classname = "ControlMessage";
 
 enum ClientToDriverMessageType {
diff --git a/runtime/common/src/main/proto/GrcpMessageService.proto b/runtime/common/src/main/proto/GrcpMessageService.proto
index fdce1fe3a..93b11aff0 100644
--- a/runtime/common/src/main/proto/GrcpMessageService.proto
+++ b/runtime/common/src/main/proto/GrcpMessageService.proto
@@ -16,18 +16,18 @@ syntax = "proto2";
 
 package protobuf;
 
-option java_package = "edu.snu.nemo.runtime.common.comm";
+option java_package = "org.apache.nemo.runtime.common.comm";
 option java_outer_classname = "GrpcMessageService";
 
 import "ControlMessage.proto";
 
-// A grpc service for implementing edu.snu.nemo.runtime.common.message components using grpc
+// A grpc service for implementing org.apache.nemo.runtime.common.message components using grpc
 service MessageService {
 
-    // See edu.snu.nemo.runtime.common.message.MessageSender#send for more details
+    // See org.apache.nemo.runtime.common.message.MessageSender#send for more details
     rpc send(Message) returns (Void) {}
 
-    // See edu.snu.nemo.runtime.common.message.MessageSender#request for more details
+    // See org.apache.nemo.runtime.common.message.MessageSender#request for more details
     rpc request(Message) returns (Message) {}
 
 }
diff --git a/runtime/common/src/test/java/edu/snu/nemo/runtime/common/message/local/LocalMessageTest.java b/runtime/common/src/test/java/edu/snu/nemo/runtime/common/message/local/LocalMessageTest.java
index 08d63000b..a1607337a 100644
--- a/runtime/common/src/test/java/edu/snu/nemo/runtime/common/message/local/LocalMessageTest.java
+++ b/runtime/common/src/test/java/edu/snu/nemo/runtime/common/message/local/LocalMessageTest.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.message.local;
+package org.apache.nemo.runtime.common.message.local;
 
-import edu.snu.nemo.runtime.common.message.*;
+import org.apache.nemo.runtime.common.message.*;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
 import org.junit.Assert;
diff --git a/runtime/common/src/test/java/edu/snu/nemo/runtime/common/optimizer/pass/runtime/DataSkewRuntimePassTest.java b/runtime/common/src/test/java/edu/snu/nemo/runtime/common/optimizer/pass/runtime/DataSkewRuntimePassTest.java
index d8948cff0..6f62169e2 100644
--- a/runtime/common/src/test/java/edu/snu/nemo/runtime/common/optimizer/pass/runtime/DataSkewRuntimePassTest.java
+++ b/runtime/common/src/test/java/edu/snu/nemo/runtime/common/optimizer/pass/runtime/DataSkewRuntimePassTest.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.optimizer.pass.runtime;
+package org.apache.nemo.runtime.common.optimizer.pass.runtime;
 
-import edu.snu.nemo.common.HashRange;
-import edu.snu.nemo.common.KeyRange;
+import org.apache.nemo.common.HashRange;
+import org.apache.nemo.common.KeyRange;
 import org.junit.Before;
 import org.junit.Test;
 
diff --git a/runtime/common/src/test/java/edu/snu/nemo/runtime/common/plan/PhysicalPlanGeneratorTest.java b/runtime/common/src/test/java/edu/snu/nemo/runtime/common/plan/PhysicalPlanGeneratorTest.java
index 2c4619442..ae33faa3f 100644
--- a/runtime/common/src/test/java/edu/snu/nemo/runtime/common/plan/PhysicalPlanGeneratorTest.java
+++ b/runtime/common/src/test/java/edu/snu/nemo/runtime/common/plan/PhysicalPlanGeneratorTest.java
@@ -13,24 +13,24 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.plan;
+package org.apache.nemo.runtime.common.plan;
 
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ScheduleGroupProperty;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ScheduleGroupProperty;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
 import org.junit.Test;
 
 import java.util.Iterator;
 
-import static edu.snu.nemo.common.test.EmptyComponents.EMPTY_TRANSFORM;
+import static org.apache.nemo.common.test.EmptyComponents.EMPTY_TRANSFORM;
 import static org.junit.Assert.assertNotEquals;
 
 /**
diff --git a/runtime/common/src/test/java/edu/snu/nemo/runtime/common/plan/StagePartitionerTest.java b/runtime/common/src/test/java/edu/snu/nemo/runtime/common/plan/StagePartitionerTest.java
index d7eedcdd4..4c21ca653 100644
--- a/runtime/common/src/test/java/edu/snu/nemo/runtime/common/plan/StagePartitionerTest.java
+++ b/runtime/common/src/test/java/edu/snu/nemo/runtime/common/plan/StagePartitionerTest.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.plan;
+package org.apache.nemo.runtime.common.plan;
 
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.*;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.*;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
 import org.apache.reef.tang.Tang;
 import org.apache.reef.tang.exceptions.InjectionException;
 import org.junit.Before;
@@ -33,7 +33,7 @@
 import java.util.List;
 import java.util.Map;
 
-import static edu.snu.nemo.common.test.EmptyComponents.EMPTY_TRANSFORM;
+import static org.apache.nemo.common.test.EmptyComponents.EMPTY_TRANSFORM;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotEquals;
 
diff --git a/runtime/driver/pom.xml b/runtime/driver/pom.xml
index 959073e5f..ff547027c 100644
--- a/runtime/driver/pom.xml
+++ b/runtime/driver/pom.xml
@@ -17,7 +17,7 @@ limitations under the License.
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <parent>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <artifactId>nemo-project</artifactId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../../</relativePath>
@@ -36,37 +36,37 @@ limitations under the License.
 
     <dependencies>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-common</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-compiler-backend</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-compiler-optimizer</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-runtime-common</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-runtime-executor</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-runtime-master</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-conf</artifactId>
             <version>${project.version}</version>
         </dependency>
diff --git a/runtime/driver/src/main/java/edu/snu/nemo/driver/NemoContext.java b/runtime/driver/src/main/java/edu/snu/nemo/driver/NemoContext.java
index 491e9506f..e5797c11f 100644
--- a/runtime/driver/src/main/java/edu/snu/nemo/driver/NemoContext.java
+++ b/runtime/driver/src/main/java/edu/snu/nemo/driver/NemoContext.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.driver;
+package org.apache.nemo.driver;
 
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.executor.Executor;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.executor.Executor;
 import org.apache.reef.annotations.audience.EvaluatorSide;
 import org.apache.reef.evaluator.context.events.ContextStart;
 import org.apache.reef.evaluator.context.events.ContextStop;
diff --git a/runtime/driver/src/main/java/edu/snu/nemo/driver/NemoDriver.java b/runtime/driver/src/main/java/edu/snu/nemo/driver/NemoDriver.java
index 4f22ac677..2f180b7b2 100644
--- a/runtime/driver/src/main/java/edu/snu/nemo/driver/NemoDriver.java
+++ b/runtime/driver/src/main/java/edu/snu/nemo/driver/NemoDriver.java
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.driver;
+package org.apache.nemo.driver;
 
-import edu.snu.nemo.common.ir.IdManager;
-import edu.snu.nemo.compiler.optimizer.pass.compiletime.annotating.ResourceSitePass;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageParameters;
-import edu.snu.nemo.runtime.master.ClientRPC;
-import edu.snu.nemo.runtime.master.BroadcastManagerMaster;
-import edu.snu.nemo.runtime.master.RuntimeMaster;
+import org.apache.nemo.common.ir.IdManager;
+import org.apache.nemo.compiler.optimizer.pass.compiletime.annotating.ResourceSitePass;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageParameters;
+import org.apache.nemo.runtime.master.ClientRPC;
+import org.apache.nemo.runtime.master.BroadcastManagerMaster;
+import org.apache.nemo.runtime.master.RuntimeMaster;
 import org.apache.commons.lang3.SerializationUtils;
 import org.apache.commons.lang3.concurrent.BasicThreadFactory;
 import org.apache.reef.annotations.audience.DriverSide;
diff --git a/runtime/driver/src/main/java/edu/snu/nemo/driver/RemoteClientMessageLoggingHandler.java b/runtime/driver/src/main/java/edu/snu/nemo/driver/RemoteClientMessageLoggingHandler.java
index 33a9eef37..7f7c511ff 100644
--- a/runtime/driver/src/main/java/edu/snu/nemo/driver/RemoteClientMessageLoggingHandler.java
+++ b/runtime/driver/src/main/java/edu/snu/nemo/driver/RemoteClientMessageLoggingHandler.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.driver;
+package org.apache.nemo.driver;
 
 import org.apache.reef.driver.client.JobMessageObserver;
 
diff --git a/runtime/driver/src/main/java/edu/snu/nemo/driver/UserApplicationRunner.java b/runtime/driver/src/main/java/edu/snu/nemo/driver/UserApplicationRunner.java
index 5fcbc11a9..e2b5e7cfc 100644
--- a/runtime/driver/src/main/java/edu/snu/nemo/driver/UserApplicationRunner.java
+++ b/runtime/driver/src/main/java/edu/snu/nemo/driver/UserApplicationRunner.java
@@ -13,18 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.driver;
+package org.apache.nemo.driver;
 
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.compiler.backend.Backend;
-import edu.snu.nemo.compiler.optimizer.Optimizer;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.master.PlanStateManager;
-import edu.snu.nemo.runtime.master.RuntimeMaster;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.compiler.backend.Backend;
+import org.apache.nemo.compiler.optimizer.Optimizer;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.master.PlanStateManager;
+import org.apache.nemo.runtime.master.RuntimeMaster;
 import org.apache.commons.lang3.SerializationUtils;
 import org.apache.reef.tang.annotations.Parameter;
 import org.slf4j.Logger;
diff --git a/runtime/executor/pom.xml b/runtime/executor/pom.xml
index d2737e976..02a7e3335 100644
--- a/runtime/executor/pom.xml
+++ b/runtime/executor/pom.xml
@@ -19,7 +19,7 @@ limitations under the License.
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <artifactId>nemo-project</artifactId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../../</relativePath>
@@ -37,17 +37,17 @@ limitations under the License.
 
     <dependencies>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-common</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-runtime-common</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-conf</artifactId>
             <version>${project.version}</version>
         </dependency>
@@ -64,7 +64,7 @@ limitations under the License.
             <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-runtime-master</artifactId>
             <version>0.1-SNAPSHOT</version>
             <scope>test</scope>
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/Executor.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/Executor.java
index 23978dcd9..533107adf 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/Executor.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/Executor.java
@@ -13,30 +13,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor;
+package org.apache.nemo.runtime.executor;
 
 import com.google.protobuf.ByteString;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecoderProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DecompressionProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.EncoderProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.CompressionProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.common.exception.IllegalMessageException;
-import edu.snu.nemo.common.exception.UnknownFailureCauseException;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageContext;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.MessageListener;
-import edu.snu.nemo.runtime.common.message.PersistentConnectionToMasterMap;
-import edu.snu.nemo.runtime.common.plan.RuntimeEdge;
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.executor.data.BroadcastManagerWorker;
-import edu.snu.nemo.runtime.executor.data.SerializerManager;
-import edu.snu.nemo.runtime.executor.datatransfer.DataTransferFactory;
-import edu.snu.nemo.runtime.executor.task.TaskExecutor;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.edge.executionproperty.DecoderProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DecompressionProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.EncoderProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.CompressionProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.common.exception.IllegalMessageException;
+import org.apache.nemo.common.exception.UnknownFailureCauseException;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageContext;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.MessageListener;
+import org.apache.nemo.runtime.common.message.PersistentConnectionToMasterMap;
+import org.apache.nemo.runtime.common.plan.RuntimeEdge;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.executor.data.BroadcastManagerWorker;
+import org.apache.nemo.runtime.executor.data.SerializerManager;
+import org.apache.nemo.runtime.executor.datatransfer.DataTransferFactory;
+import org.apache.nemo.runtime.executor.task.TaskExecutor;
 import org.apache.commons.lang3.SerializationUtils;
 import org.apache.commons.lang3.concurrent.BasicThreadFactory;
 import org.apache.reef.tang.annotations.Parameter;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/MetricManagerWorker.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/MetricManagerWorker.java
index 8e51cdaba..1960f87e6 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/MetricManagerWorker.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/MetricManagerWorker.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor;
+package org.apache.nemo.runtime.executor;
 
 import com.google.protobuf.ByteString;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.common.exception.UnknownFailureCauseException;
-import edu.snu.nemo.runtime.common.message.PersistentConnectionToMasterMap;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.common.exception.UnknownFailureCauseException;
+import org.apache.nemo.runtime.common.message.PersistentConnectionToMasterMap;
 import org.apache.reef.annotations.audience.EvaluatorSide;
 
 import javax.inject.Inject;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/MetricMessageSender.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/MetricMessageSender.java
index a7693f6d9..047923df0 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/MetricMessageSender.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/MetricMessageSender.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor;
+package org.apache.nemo.runtime.executor;
 
 import org.apache.reef.tang.annotations.DefaultImplementation;
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/TaskStateManager.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/TaskStateManager.java
index f82fd115b..2cc0161e3 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/TaskStateManager.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/TaskStateManager.java
@@ -13,20 +13,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor;
+package org.apache.nemo.runtime.executor;
 
-import edu.snu.nemo.common.exception.UnknownExecutionStateException;
-import edu.snu.nemo.common.exception.UnknownFailureCauseException;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.PersistentConnectionToMasterMap;
-import edu.snu.nemo.runtime.common.metric.StateTransitionEvent;
-import edu.snu.nemo.runtime.common.plan.Task;
+import org.apache.nemo.common.exception.UnknownExecutionStateException;
+import org.apache.nemo.common.exception.UnknownFailureCauseException;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.PersistentConnectionToMasterMap;
+import org.apache.nemo.runtime.common.metric.StateTransitionEvent;
+import org.apache.nemo.runtime.common.plan.Task;
 
 import java.util.*;
 
-import edu.snu.nemo.runtime.common.state.TaskState;
+import org.apache.nemo.runtime.common.state.TaskState;
 import org.apache.commons.lang3.SerializationUtils;
 import org.apache.reef.annotations.audience.EvaluatorSide;
 import org.slf4j.Logger;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/TransformContextImpl.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/TransformContextImpl.java
index eeace7c4c..682cf3ca7 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/TransformContextImpl.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/TransformContextImpl.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor;
+package org.apache.nemo.runtime.executor;
 
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
-import edu.snu.nemo.runtime.executor.data.BroadcastManagerWorker;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.runtime.executor.data.BroadcastManagerWorker;
 
 import java.io.Serializable;
 import java.util.Map;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteInputContext.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteInputContext.java
index e57de5ba3..a97174fc8 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteInputContext.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteInputContext.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.bytetransfer;
+package org.apache.nemo.runtime.executor.bytetransfer;
 
 import io.netty.buffer.ByteBuf;
 import org.slf4j.Logger;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteOutputContext.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteOutputContext.java
index ebe9d4f0b..58698d18e 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteOutputContext.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteOutputContext.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.bytetransfer;
+package org.apache.nemo.runtime.executor.bytetransfer;
 
-import edu.snu.nemo.runtime.executor.data.FileArea;
-import edu.snu.nemo.runtime.executor.data.partition.SerializedPartition;
+import org.apache.nemo.runtime.executor.data.FileArea;
+import org.apache.nemo.runtime.executor.data.partition.SerializedPartition;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.*;
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransfer.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransfer.java
index e5aa1ca21..38cc8462d 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransfer.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransfer.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.bytetransfer;
+package org.apache.nemo.runtime.executor.bytetransfer;
 
 import io.netty.channel.*;
 import org.slf4j.Logger;
@@ -26,7 +26,7 @@
 import java.util.concurrent.ConcurrentMap;
 
 /**
- * Manages channels and exposes interface for {@link edu.snu.nemo.runtime.executor.data.BlockManagerWorker}.
+ * Manages channels and exposes interface for {@link org.apache.nemo.runtime.executor.data.BlockManagerWorker}.
  */
 @ThreadSafe
 public final class ByteTransfer {
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransferContext.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransferContext.java
index 7cfc898f8..3c18625fe 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransferContext.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransferContext.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.bytetransfer;
+package org.apache.nemo.runtime.executor.bytetransfer;
 
-import edu.snu.nemo.runtime.common.comm.ControlMessage.ByteTransferDataDirection;
+import org.apache.nemo.runtime.common.comm.ControlMessage.ByteTransferDataDirection;
 import io.netty.channel.ChannelFuture;
 import io.netty.channel.ChannelFutureListener;
 import org.slf4j.Logger;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransport.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransport.java
index 3e7aed6e3..2958402b5 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransport.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransport.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.bytetransfer;
+package org.apache.nemo.runtime.executor.bytetransfer;
 
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.NettyChannelImplementationSelector;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.NettyChannelImplementationSelector;
 import io.netty.bootstrap.Bootstrap;
 import io.netty.bootstrap.ServerBootstrap;
 import io.netty.channel.*;
@@ -232,7 +232,7 @@ ChannelGroup getChannelGroup() {
     /**
      * Creates a {@link ByteTransportIdentifier}.
      *
-     * @param executorId id of the {@link edu.snu.nemo.runtime.executor.Executor}
+     * @param executorId id of the {@link org.apache.nemo.runtime.executor.Executor}
      */
     private ByteTransportIdentifier(final String executorId) {
       this.executorId = executorId;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransportChannelInitializer.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransportChannelInitializer.java
index 54d0fb1a4..bc7920f4e 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransportChannelInitializer.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ByteTransportChannelInitializer.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.bytetransfer;
+package org.apache.nemo.runtime.executor.bytetransfer;
 
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.executor.data.BlockManagerWorker;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.executor.data.BlockManagerWorker;
 import io.netty.channel.ChannelInitializer;
 import io.netty.channel.socket.SocketChannel;
 import org.apache.reef.tang.InjectionFuture;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ClosableBlockingQueue.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ClosableBlockingQueue.java
index faf3ed190..560291e09 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ClosableBlockingQueue.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ClosableBlockingQueue.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.bytetransfer;
+package org.apache.nemo.runtime.executor.bytetransfer;
 
 import javax.annotation.Nullable;
 import javax.annotation.concurrent.ThreadSafe;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ContextManager.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ContextManager.java
index 13591f670..e31f3818b 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ContextManager.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ContextManager.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.bytetransfer;
+package org.apache.nemo.runtime.executor.bytetransfer;
 
-import edu.snu.nemo.runtime.common.comm.ControlMessage.ByteTransferContextSetupMessage;
-import edu.snu.nemo.runtime.common.comm.ControlMessage.ByteTransferDataDirection;
-import edu.snu.nemo.runtime.executor.bytetransfer.ByteTransferContext.ContextId;
-import edu.snu.nemo.runtime.executor.data.BlockManagerWorker;
+import org.apache.nemo.runtime.common.comm.ControlMessage.ByteTransferContextSetupMessage;
+import org.apache.nemo.runtime.common.comm.ControlMessage.ByteTransferDataDirection;
+import org.apache.nemo.runtime.executor.bytetransfer.ByteTransferContext.ContextId;
+import org.apache.nemo.runtime.executor.data.BlockManagerWorker;
 import io.netty.channel.*;
 import io.netty.channel.group.ChannelGroup;
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ControlFrameEncoder.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ControlFrameEncoder.java
index dc73334ec..2cff676ad 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ControlFrameEncoder.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/ControlFrameEncoder.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.bytetransfer;
+package org.apache.nemo.runtime.executor.bytetransfer;
 
 import com.google.protobuf.ByteString;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.comm.ControlMessage.ByteTransferContextSetupMessage;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.comm.ControlMessage.ByteTransferContextSetupMessage;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.ChannelHandler;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/DataFrameEncoder.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/DataFrameEncoder.java
index af4f6046e..9969848c7 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/DataFrameEncoder.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/DataFrameEncoder.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.bytetransfer;
+package org.apache.nemo.runtime.executor.bytetransfer;
 
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.ChannelHandler;
 import io.netty.channel.ChannelHandlerContext;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/FrameDecoder.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/FrameDecoder.java
index 0df3661e0..738f811da 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/FrameDecoder.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/FrameDecoder.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.bytetransfer;
+package org.apache.nemo.runtime.executor.bytetransfer;
 
 import com.google.protobuf.InvalidProtocolBufferException;
-import edu.snu.nemo.runtime.common.comm.ControlMessage.ByteTransferContextSetupMessage;
-import edu.snu.nemo.runtime.common.comm.ControlMessage.ByteTransferDataDirection;
+import org.apache.nemo.runtime.common.comm.ControlMessage.ByteTransferContextSetupMessage;
+import org.apache.nemo.runtime.common.comm.ControlMessage.ByteTransferDataDirection;
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.handler.codec.ByteToMessageDecoder;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/package-info.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/package-info.java
index c7078cab3..d370bc1c1 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/package-info.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/bytetransfer/package-info.java
@@ -16,4 +16,4 @@
 /**
  * Responsible for transferring block content from one executor to another.
  */
-package edu.snu.nemo.runtime.executor.bytetransfer;
+package org.apache.nemo.runtime.executor.bytetransfer;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/BlockManagerWorker.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/BlockManagerWorker.java
index 3bb8cee4d..8487af1f3 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/BlockManagerWorker.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/BlockManagerWorker.java
@@ -13,32 +13,32 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data;
+package org.apache.nemo.runtime.executor.data;
 
 import com.google.protobuf.ByteString;
 import com.google.protobuf.InvalidProtocolBufferException;
-import edu.snu.nemo.common.exception.BlockFetchException;
-import edu.snu.nemo.common.exception.BlockWriteException;
-import edu.snu.nemo.common.exception.UnsupportedBlockStoreException;
-import edu.snu.nemo.common.exception.UnsupportedExecutionPropertyException;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataStoreProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataPersistenceProperty;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.comm.ControlMessage.ByteTransferContextDescriptor;
-import edu.snu.nemo.common.KeyRange;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.PersistentConnectionToMasterMap;
-import edu.snu.nemo.runtime.executor.bytetransfer.ByteInputContext;
-import edu.snu.nemo.runtime.executor.bytetransfer.ByteOutputContext;
-import edu.snu.nemo.runtime.executor.bytetransfer.ByteTransfer;
-import edu.snu.nemo.runtime.executor.data.block.Block;
-import edu.snu.nemo.runtime.executor.data.block.FileBlock;
-import edu.snu.nemo.runtime.executor.data.partition.NonSerializedPartition;
-import edu.snu.nemo.runtime.executor.data.partition.SerializedPartition;
-import edu.snu.nemo.runtime.executor.data.stores.BlockStore;
-import edu.snu.nemo.runtime.executor.data.stores.*;
+import org.apache.nemo.common.exception.BlockFetchException;
+import org.apache.nemo.common.exception.BlockWriteException;
+import org.apache.nemo.common.exception.UnsupportedBlockStoreException;
+import org.apache.nemo.common.exception.UnsupportedExecutionPropertyException;
+import org.apache.nemo.common.ir.edge.executionproperty.DataStoreProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataPersistenceProperty;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.comm.ControlMessage.ByteTransferContextDescriptor;
+import org.apache.nemo.common.KeyRange;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.PersistentConnectionToMasterMap;
+import org.apache.nemo.runtime.executor.bytetransfer.ByteInputContext;
+import org.apache.nemo.runtime.executor.bytetransfer.ByteOutputContext;
+import org.apache.nemo.runtime.executor.bytetransfer.ByteTransfer;
+import org.apache.nemo.runtime.executor.data.block.Block;
+import org.apache.nemo.runtime.executor.data.block.FileBlock;
+import org.apache.nemo.runtime.executor.data.partition.NonSerializedPartition;
+import org.apache.nemo.runtime.executor.data.partition.SerializedPartition;
+import org.apache.nemo.runtime.executor.data.stores.BlockStore;
+import org.apache.nemo.runtime.executor.data.stores.*;
 import org.apache.commons.lang3.SerializationUtils;
 import org.apache.reef.tang.annotations.Parameter;
 
@@ -318,7 +318,7 @@ public void removeBlock(final String blockId,
   /**
    * Respond to a block request by another executor.
    * <p>
-   * This method is executed by {edu.snu.nemo.runtime.executor.data.blocktransfer.BlockTransport} thread. \
+   * This method is executed by {org.apache.nemo.runtime.executor.data.blocktransfer.BlockTransport} thread. \
    * Never execute a blocking call in this method!
    *
    * @param outputContext {@link ByteOutputContext}
@@ -371,7 +371,7 @@ public void run() {
   /**
    * Respond to a block notification by another executor.
    * <p>
-   * This method is executed by {edu.snu.nemo.runtime.executor.data.blocktransfer.BlockTransport}
+   * This method is executed by {org.apache.nemo.runtime.executor.data.blocktransfer.BlockTransport}
    * thread. Never execute a blocking call in this method!
    *
    * @param inputContext {@link ByteInputContext}
@@ -430,7 +430,7 @@ public void onInputContext(final ByteInputContext inputContext) {
 
 
   /**
-   * Handles used {@link edu.snu.nemo.runtime.executor.data.block.Block}.
+   * Handles used {@link org.apache.nemo.runtime.executor.data.block.Block}.
    *
    * @param blockStore the store which contains the block.
    * @param blockId    the ID of the block.
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/BlockTransferThrottler.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/BlockTransferThrottler.java
index 8d9f8a1ce..fb8d03141 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/BlockTransferThrottler.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/BlockTransferThrottler.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data;
+package org.apache.nemo.runtime.executor.data;
 
-import edu.snu.nemo.conf.JobConf;
+import org.apache.nemo.conf.JobConf;
 import org.apache.reef.tang.annotations.Parameter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/BroadcastManagerWorker.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/BroadcastManagerWorker.java
index e90427bdd..523025e62 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/BroadcastManagerWorker.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/BroadcastManagerWorker.java
@@ -13,18 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data;
+package org.apache.nemo.runtime.executor.data;
 
 import com.google.common.cache.CacheBuilder;
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
 import com.google.protobuf.ByteString;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.PersistentConnectionToMasterMap;
-import edu.snu.nemo.runtime.executor.datatransfer.InputReader;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.PersistentConnectionToMasterMap;
+import org.apache.nemo.runtime.executor.datatransfer.InputReader;
 import net.jcip.annotations.ThreadSafe;
 import org.apache.commons.lang.SerializationUtils;
 import org.apache.reef.tang.annotations.Parameter;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/DataUtil.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/DataUtil.java
index 041283a8c..9fc63cf7a 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/DataUtil.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/DataUtil.java
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data;
+package org.apache.nemo.runtime.executor.data;
 
 import com.google.common.io.CountingInputStream;
-import edu.snu.nemo.common.DirectByteArrayOutputStream;
-import edu.snu.nemo.common.coder.DecoderFactory;
-import edu.snu.nemo.common.coder.EncoderFactory;
-import edu.snu.nemo.runtime.executor.data.partition.NonSerializedPartition;
-import edu.snu.nemo.runtime.executor.data.partition.SerializedPartition;
-import edu.snu.nemo.runtime.executor.data.streamchainer.DecodeStreamChainer;
-import edu.snu.nemo.runtime.executor.data.streamchainer.EncodeStreamChainer;
-import edu.snu.nemo.runtime.executor.data.streamchainer.Serializer;
+import org.apache.nemo.common.DirectByteArrayOutputStream;
+import org.apache.nemo.common.coder.DecoderFactory;
+import org.apache.nemo.common.coder.EncoderFactory;
+import org.apache.nemo.runtime.executor.data.partition.NonSerializedPartition;
+import org.apache.nemo.runtime.executor.data.partition.SerializedPartition;
+import org.apache.nemo.runtime.executor.data.streamchainer.DecodeStreamChainer;
+import org.apache.nemo.runtime.executor.data.streamchainer.EncodeStreamChainer;
+import org.apache.nemo.runtime.executor.data.streamchainer.Serializer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -94,7 +94,7 @@ private static void serializePartition(final EncoderFactory encoderFactory,
   }
 
   /**
-   * Converts the non-serialized {@link edu.snu.nemo.runtime.executor.data.partition.Partition}s
+   * Converts the non-serialized {@link org.apache.nemo.runtime.executor.data.partition.Partition}s
    * in an iterable to serialized partitions.
    *
    * @param serializer          the serializer for serialization.
@@ -126,7 +126,7 @@ private static void serializePartition(final EncoderFactory encoderFactory,
   }
 
   /**
-   * Converts the serialized {@link edu.snu.nemo.runtime.executor.data.partition.Partition}s
+   * Converts the serialized {@link org.apache.nemo.runtime.executor.data.partition.Partition}s
    * in an iterable to non-serialized partitions.
    *
    * @param serializer          the serializer for deserialization.
@@ -176,7 +176,7 @@ public static String blockIdToMetaFilePath(final String blockId,
   }
 
   /**
-   * Concatenates an iterable of non-serialized {@link edu.snu.nemo.runtime.executor.data.partition.Partition}s
+   * Concatenates an iterable of non-serialized {@link org.apache.nemo.runtime.executor.data.partition.Partition}s
    * into a single iterable of elements.
    *
    * @param partitionsToConcat the partitions to concatenate.
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/FileArea.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/FileArea.java
index f266150f9..acf3547f3 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/FileArea.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/FileArea.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data;
+package org.apache.nemo.runtime.executor.data;
 
 import java.io.Serializable;
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/LimitedInputStream.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/LimitedInputStream.java
index c87424f86..1df66c4a4 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/LimitedInputStream.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/LimitedInputStream.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data;
+package org.apache.nemo.runtime.executor.data;
 
 import java.io.IOException;
 import java.io.InputStream;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/SerializerManager.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/SerializerManager.java
index c41596532..b9d1dac25 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/SerializerManager.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/SerializerManager.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data;
+package org.apache.nemo.runtime.executor.data;
 
-import edu.snu.nemo.common.coder.DecoderFactory;
-import edu.snu.nemo.common.coder.EncoderFactory;
-import edu.snu.nemo.runtime.executor.data.streamchainer.*;
-import edu.snu.nemo.common.ir.edge.executionproperty.CompressionProperty;
+import org.apache.nemo.common.coder.DecoderFactory;
+import org.apache.nemo.common.coder.EncoderFactory;
+import org.apache.nemo.runtime.executor.data.streamchainer.*;
+import org.apache.nemo.common.ir.edge.executionproperty.CompressionProperty;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/Block.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/Block.java
index 960f2c556..8afc69e9f 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/Block.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/Block.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.block;
+package org.apache.nemo.runtime.executor.data.block;
 
-import edu.snu.nemo.common.exception.BlockFetchException;
-import edu.snu.nemo.common.exception.BlockWriteException;
-import edu.snu.nemo.common.KeyRange;
-import edu.snu.nemo.runtime.executor.data.partition.NonSerializedPartition;
-import edu.snu.nemo.runtime.executor.data.partition.SerializedPartition;
+import org.apache.nemo.common.exception.BlockFetchException;
+import org.apache.nemo.common.exception.BlockWriteException;
+import org.apache.nemo.common.KeyRange;
+import org.apache.nemo.runtime.executor.data.partition.NonSerializedPartition;
+import org.apache.nemo.runtime.executor.data.partition.SerializedPartition;
 
 import java.io.Serializable;
 import java.util.Map;
@@ -41,7 +41,7 @@
    * @param element the element to write.
    * @throws BlockWriteException for any error occurred while trying to write a block.
    *                             (This exception will be thrown to the scheduler
-   *                             through {@link edu.snu.nemo.runtime.executor.Executor} and
+   *                             through {@link org.apache.nemo.runtime.executor.Executor} and
    *                             have to be handled by the scheduler with fault tolerance mechanism.)
    */
   void write(K key, Object element) throws BlockWriteException;
@@ -54,7 +54,7 @@
    * @param partitions the {@link NonSerializedPartition}s to store.
    * @throws BlockWriteException for any error occurred while trying to write a block.
    *                             (This exception will be thrown to the scheduler
-   *                             through {@link edu.snu.nemo.runtime.executor.Executor} and
+   *                             through {@link org.apache.nemo.runtime.executor.Executor} and
    *                             have to be handled by the scheduler with fault tolerance mechanism.)
    */
   void writePartitions(Iterable<NonSerializedPartition<K>> partitions) throws BlockWriteException;
@@ -67,7 +67,7 @@
    * @param partitions the {@link SerializedPartition}s to store.
    * @throws BlockWriteException for any error occurred while trying to write a block.
    *                             (This exception will be thrown to the scheduler
-   *                             through {@link edu.snu.nemo.runtime.executor.Executor} and
+   *                             through {@link org.apache.nemo.runtime.executor.Executor} and
    *                             have to be handled by the scheduler with fault tolerance mechanism.)
    */
   void writeSerializedPartitions(Iterable<SerializedPartition<K>> partitions) throws BlockWriteException;
@@ -81,7 +81,7 @@
    * @return an iterable of {@link NonSerializedPartition}s.
    * @throws BlockFetchException for any error occurred while trying to fetch a block.
    *                             (This exception will be thrown to the scheduler
-   *                             through {@link edu.snu.nemo.runtime.executor.Executor} and
+   *                             through {@link org.apache.nemo.runtime.executor.Executor} and
    *                             have to be handled by the scheduler with fault tolerance mechanism.)
    */
   Iterable<NonSerializedPartition<K>> readPartitions(KeyRange<K> keyRange) throws BlockFetchException;
@@ -94,7 +94,7 @@
    * @return an iterable of {@link SerializedPartition}s.
    * @throws BlockFetchException for any error occurred while trying to fetch a block.
    *                             (This exception will be thrown to the scheduler
-   *                             through {@link edu.snu.nemo.runtime.executor.Executor} and
+   *                             through {@link org.apache.nemo.runtime.executor.Executor} and
    *                             have to be handled by the scheduler with fault tolerance mechanism.)
    */
   Iterable<SerializedPartition<K>> readSerializedPartitions(KeyRange<K> keyRange) throws BlockFetchException;
@@ -105,7 +105,7 @@
    * @return the size of each partition if the data in the block is serialized.
    * @throws BlockWriteException for any error occurred while trying to commit a block.
    *                             (This exception will be thrown to the scheduler
-   *                             through {@link edu.snu.nemo.runtime.executor.Executor} and
+   *                             through {@link org.apache.nemo.runtime.executor.Executor} and
    *                             have to be handled by the scheduler with fault tolerance mechanism.)
    */
   Optional<Map<K, Long>> commit() throws BlockWriteException;
@@ -119,7 +119,7 @@
    *
    * @throws BlockWriteException for any error occurred while trying to commit partitions.
    *                             (This exception will be thrown to the scheduler
-   *                             through {@link edu.snu.nemo.runtime.executor.Executor} and
+   *                             through {@link org.apache.nemo.runtime.executor.Executor} and
    *                             have to be handled by the scheduler with fault tolerance mechanism.)
    */
   void commitPartitions() throws BlockWriteException;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/FileBlock.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/FileBlock.java
index 1cee8271f..9d6791a95 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/FileBlock.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/FileBlock.java
@@ -13,19 +13,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.block;
+package org.apache.nemo.runtime.executor.data.block;
 
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.exception.BlockFetchException;
-import edu.snu.nemo.common.exception.BlockWriteException;
-import edu.snu.nemo.common.KeyRange;
-import edu.snu.nemo.runtime.executor.data.*;
-import edu.snu.nemo.runtime.executor.data.partition.NonSerializedPartition;
-import edu.snu.nemo.runtime.executor.data.partition.Partition;
-import edu.snu.nemo.runtime.executor.data.partition.SerializedPartition;
-import edu.snu.nemo.runtime.executor.data.streamchainer.Serializer;
-import edu.snu.nemo.runtime.executor.data.metadata.PartitionMetadata;
-import edu.snu.nemo.runtime.executor.data.metadata.FileMetadata;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.exception.BlockFetchException;
+import org.apache.nemo.common.exception.BlockWriteException;
+import org.apache.nemo.common.KeyRange;
+import org.apache.nemo.runtime.executor.data.*;
+import org.apache.nemo.runtime.executor.data.partition.NonSerializedPartition;
+import org.apache.nemo.runtime.executor.data.partition.Partition;
+import org.apache.nemo.runtime.executor.data.partition.SerializedPartition;
+import org.apache.nemo.runtime.executor.data.streamchainer.Serializer;
+import org.apache.nemo.runtime.executor.data.metadata.PartitionMetadata;
+import org.apache.nemo.runtime.executor.data.metadata.FileMetadata;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/NonSerializedMemoryBlock.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/NonSerializedMemoryBlock.java
index 7722f2d8f..55b2efe7c 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/NonSerializedMemoryBlock.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/NonSerializedMemoryBlock.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.block;
+package org.apache.nemo.runtime.executor.data.block;
 
-import edu.snu.nemo.common.exception.BlockFetchException;
-import edu.snu.nemo.common.exception.BlockWriteException;
-import edu.snu.nemo.common.KeyRange;
-import edu.snu.nemo.runtime.executor.data.DataUtil;
-import edu.snu.nemo.runtime.executor.data.partition.NonSerializedPartition;
-import edu.snu.nemo.runtime.executor.data.partition.SerializedPartition;
-import edu.snu.nemo.runtime.executor.data.streamchainer.Serializer;
+import org.apache.nemo.common.exception.BlockFetchException;
+import org.apache.nemo.common.exception.BlockWriteException;
+import org.apache.nemo.common.KeyRange;
+import org.apache.nemo.runtime.executor.data.DataUtil;
+import org.apache.nemo.runtime.executor.data.partition.NonSerializedPartition;
+import org.apache.nemo.runtime.executor.data.partition.SerializedPartition;
+import org.apache.nemo.runtime.executor.data.streamchainer.Serializer;
 
 import javax.annotation.concurrent.NotThreadSafe;
 import java.io.IOException;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/SerializedMemoryBlock.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/SerializedMemoryBlock.java
index 03a7ab1a9..01c2d9903 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/SerializedMemoryBlock.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/block/SerializedMemoryBlock.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.block;
+package org.apache.nemo.runtime.executor.data.block;
 
-import edu.snu.nemo.common.exception.BlockFetchException;
-import edu.snu.nemo.common.exception.BlockWriteException;
-import edu.snu.nemo.common.KeyRange;
-import edu.snu.nemo.runtime.executor.data.DataUtil;
-import edu.snu.nemo.runtime.executor.data.partition.NonSerializedPartition;
-import edu.snu.nemo.runtime.executor.data.partition.SerializedPartition;
-import edu.snu.nemo.runtime.executor.data.streamchainer.Serializer;
+import org.apache.nemo.common.exception.BlockFetchException;
+import org.apache.nemo.common.exception.BlockWriteException;
+import org.apache.nemo.common.KeyRange;
+import org.apache.nemo.runtime.executor.data.DataUtil;
+import org.apache.nemo.runtime.executor.data.partition.NonSerializedPartition;
+import org.apache.nemo.runtime.executor.data.partition.SerializedPartition;
+import org.apache.nemo.runtime.executor.data.streamchainer.Serializer;
 
 import javax.annotation.concurrent.NotThreadSafe;
 import java.io.IOException;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/FileMetadata.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/FileMetadata.java
index 108a4e79b..8d7d486bf 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/FileMetadata.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/FileMetadata.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.metadata;
+package org.apache.nemo.runtime.executor.data.metadata;
 
 import java.io.IOException;
 import java.io.Serializable;
@@ -23,7 +23,7 @@
 import java.util.concurrent.atomic.AtomicBoolean;
 
 /**
- * This class represents a metadata for a {@link edu.snu.nemo.runtime.executor.data.block.Block}.
+ * This class represents a metadata for a {@link org.apache.nemo.runtime.executor.data.block.Block}.
  * The writer and reader determine the status of a file block
  * (such as accessibility, how many bytes are written, etc.) by using this metadata.
  * @param <K> the key type of its partitions.
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/LocalFileMetadata.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/LocalFileMetadata.java
index c55dee4f7..0e463c2d8 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/LocalFileMetadata.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/LocalFileMetadata.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.metadata;
+package org.apache.nemo.runtime.executor.data.metadata;
 
 import javax.annotation.concurrent.ThreadSafe;
 import java.io.Serializable;
 
 /**
- * This class represents a metadata for a local file {@link edu.snu.nemo.runtime.executor.data.block.Block}.
+ * This class represents a metadata for a local file {@link org.apache.nemo.runtime.executor.data.block.Block}.
  * It resides in local only, and does not synchronize globally.
  * @param <K> the key type of its partitions.
  */
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/PartitionMetadata.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/PartitionMetadata.java
index 2fa9de22d..e4f556eb6 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/PartitionMetadata.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/PartitionMetadata.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.metadata;
+package org.apache.nemo.runtime.executor.data.metadata;
 
 import java.io.Serializable;
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/RemoteFileMetadata.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/RemoteFileMetadata.java
index 8ad212635..1cd08bda2 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/RemoteFileMetadata.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/metadata/RemoteFileMetadata.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.metadata;
+package org.apache.nemo.runtime.executor.data.metadata;
 
 import org.apache.commons.lang3.SerializationUtils;
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partition/NonSerializedPartition.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partition/NonSerializedPartition.java
index 18c285c22..3c0e9e69b 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partition/NonSerializedPartition.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partition/NonSerializedPartition.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.partition;
+package org.apache.nemo.runtime.executor.data.partition;
 
-import edu.snu.nemo.runtime.executor.data.DataUtil;
+import org.apache.nemo.runtime.executor.data.DataUtil;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -23,7 +23,7 @@
 
 /**
  * A collection of data elements. The data is stored as an iterable of elements.
- * This is a unit of read / write towards {@link edu.snu.nemo.runtime.executor.data.block.Block}s.
+ * This is a unit of read / write towards {@link org.apache.nemo.runtime.executor.data.block.Block}s.
  * @param <K> the key type of its partitions.
  */
 public final class NonSerializedPartition<K> implements Partition<Iterable, K> {
@@ -92,7 +92,7 @@ public void commit() {
 
   /**
    * @return the number of bytes in serialized form (which is, for example, encoded and compressed)
-   * @throws edu.snu.nemo.runtime.executor.data.DataUtil.IteratorWithNumBytes.NumBytesNotSupportedException
+   * @throws org.apache.nemo.runtime.executor.data.DataUtil.IteratorWithNumBytes.NumBytesNotSupportedException
    *         when then information is not available
    */
   public long getNumSerializedBytes() throws DataUtil.IteratorWithNumBytes.NumBytesNotSupportedException {
@@ -104,7 +104,7 @@ public long getNumSerializedBytes() throws DataUtil.IteratorWithNumBytes.NumByte
 
   /**
    * @return the number of bytes in encoded form (which is ready to be decoded)
-   * @throws edu.snu.nemo.runtime.executor.data.DataUtil.IteratorWithNumBytes.NumBytesNotSupportedException
+   * @throws org.apache.nemo.runtime.executor.data.DataUtil.IteratorWithNumBytes.NumBytesNotSupportedException
    *         when then information is not available
    */
   public long getNumEncodedBytes() throws DataUtil.IteratorWithNumBytes.NumBytesNotSupportedException {
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partition/Partition.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partition/Partition.java
index 7c5cad65d..d80803a9d 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partition/Partition.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partition/Partition.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.partition;
+package org.apache.nemo.runtime.executor.data.partition;
 
 import java.io.IOException;
 
 /**
  * A collection of data elements.
- * This is a unit of read / write towards {@link edu.snu.nemo.runtime.executor.data.block.Block}s.
+ * This is a unit of read / write towards {@link org.apache.nemo.runtime.executor.data.block.Block}s.
  * @param <T> the type of the data stored in this {@link Partition}.
  * @param <K> the type of key used for {@link Partition}.
  */
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partition/SerializedPartition.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partition/SerializedPartition.java
index 16c125921..fc77fffa2 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partition/SerializedPartition.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partition/SerializedPartition.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.partition;
+package org.apache.nemo.runtime.executor.data.partition;
 
-import edu.snu.nemo.common.DirectByteArrayOutputStream;
-import edu.snu.nemo.common.coder.EncoderFactory;
-import edu.snu.nemo.runtime.executor.data.streamchainer.Serializer;
+import org.apache.nemo.common.DirectByteArrayOutputStream;
+import org.apache.nemo.common.coder.EncoderFactory;
+import org.apache.nemo.runtime.executor.data.streamchainer.Serializer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -25,11 +25,11 @@
 import java.io.IOException;
 import java.io.OutputStream;
 
-import static edu.snu.nemo.runtime.executor.data.DataUtil.buildOutputStream;
+import static org.apache.nemo.runtime.executor.data.DataUtil.buildOutputStream;
 
 /**
  * A collection of data elements. The data is stored as an array of bytes.
- * This is a unit of read / write towards {@link edu.snu.nemo.runtime.executor.data.block.Block}s.
+ * This is a unit of read / write towards {@link org.apache.nemo.runtime.executor.data.block.Block}s.
  * @param <K> the key type of its partitions.
  */
 public final class SerializedPartition<K> implements Partition<byte[], K> {
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/DataSkewHashPartitioner.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/DataSkewHashPartitioner.java
index 08374e7a8..9d557bb53 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/DataSkewHashPartitioner.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/DataSkewHashPartitioner.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.partitioner;
+package org.apache.nemo.runtime.executor.data.partitioner;
 
-import edu.snu.nemo.common.KeyExtractor;
+import org.apache.nemo.common.KeyExtractor;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -29,7 +29,7 @@
  * When we need to split or recombine the output data from a task after it is stored,
  * we multiply the hash range with a multiplier, which is commonly-known by the source and destination tasks,
  * to prevent the extra deserialize - rehash - serialize process.
- * For more information, please check {@link edu.snu.nemo.conf.JobConf.HashRangeMultiplier}.
+ * For more information, please check {@link org.apache.nemo.conf.JobConf.HashRangeMultiplier}.
  */
 public final class DataSkewHashPartitioner implements Partitioner<Integer> {
   private static final Logger LOG = LoggerFactory.getLogger(DataSkewHashPartitioner.class.getName());
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/DedicatedKeyPerElement.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/DedicatedKeyPerElement.java
index 02c9bedfb..5abc34a8b 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/DedicatedKeyPerElement.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/DedicatedKeyPerElement.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.partitioner;
+package org.apache.nemo.runtime.executor.data.partitioner;
 
 import java.lang.annotation.*;
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/DedicatedKeyPerElementPartitioner.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/DedicatedKeyPerElementPartitioner.java
index f01f08b60..4516c7478 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/DedicatedKeyPerElementPartitioner.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/DedicatedKeyPerElementPartitioner.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.partitioner;
+package org.apache.nemo.runtime.executor.data.partitioner;
 
 /**
  * An implementation of {@link Partitioner} which assigns a dedicated key per an output data from a task.
  * WARNING: Because this partitioner assigns a dedicated key per element, it should be used under specific circumstances
  * that the number of output element is not that many. For example, every output element of
- * {@link edu.snu.nemo.common.ir.vertex.transform.RelayTransform} inserted by large shuffle optimization is always
+ * {@link org.apache.nemo.common.ir.vertex.transform.RelayTransform} inserted by large shuffle optimization is always
  * a partition. In this case, assigning a key for each element can be useful.
  */
 @DedicatedKeyPerElement
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/HashPartitioner.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/HashPartitioner.java
index 6e9dc1e25..361044685 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/HashPartitioner.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/HashPartitioner.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.partitioner;
+package org.apache.nemo.runtime.executor.data.partitioner;
 
-import edu.snu.nemo.common.KeyExtractor;
+import org.apache.nemo.common.KeyExtractor;
 
 /**
  * An implementation of {@link Partitioner} which hashes output data from a source task
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/IntactPartitioner.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/IntactPartitioner.java
index e5e9c8b2b..ee33ff61d 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/IntactPartitioner.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/IntactPartitioner.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.partitioner;
+package org.apache.nemo.runtime.executor.data.partitioner;
 
 /**
  * An implementation of {@link Partitioner} which makes an output data
- * from a source task to a single {@link edu.snu.nemo.runtime.executor.data.partition.Partition}.
+ * from a source task to a single {@link org.apache.nemo.runtime.executor.data.partition.Partition}.
  */
 public final class IntactPartitioner implements Partitioner<Integer> {
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/Partitioner.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/Partitioner.java
index af149e96b..9c9bc0fa5 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/Partitioner.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/partitioner/Partitioner.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.partitioner;
+package org.apache.nemo.runtime.executor.data.partitioner;
 
 import java.io.Serializable;
 
 /**
  * This interface represents the way of partitioning output data from a source task.
- * It takes an element and designates key of {@link edu.snu.nemo.runtime.executor.data.partition.Partition}
+ * It takes an element and designates key of {@link org.apache.nemo.runtime.executor.data.partition.Partition}
  * to write the element, according to the number of destination tasks, the key of each element, etc.
  * @param <K> the key type of the partition to write.
  */
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/AbstractBlockStore.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/AbstractBlockStore.java
index 32d46154e..4c82ab29c 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/AbstractBlockStore.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/AbstractBlockStore.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.stores;
+package org.apache.nemo.runtime.executor.data.stores;
 
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.executor.data.SerializerManager;
-import edu.snu.nemo.runtime.executor.data.streamchainer.Serializer;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.executor.data.SerializerManager;
+import org.apache.nemo.runtime.executor.data.streamchainer.Serializer;
 
 /**
  * This abstract class represents a default {@link BlockStore},
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/BlockStore.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/BlockStore.java
index cd4bb0ad6..c544bd228 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/BlockStore.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/BlockStore.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.stores;
+package org.apache.nemo.runtime.executor.data.stores;
 
-import edu.snu.nemo.common.exception.BlockFetchException;
-import edu.snu.nemo.common.exception.BlockWriteException;
-import edu.snu.nemo.runtime.executor.data.block.Block;
+import org.apache.nemo.common.exception.BlockFetchException;
+import org.apache.nemo.common.exception.BlockWriteException;
+import org.apache.nemo.runtime.executor.data.block.Block;
 
 import java.util.Optional;
 
 /**
- * Interface for {@link edu.snu.nemo.runtime.executor.data.block.Block} placement.
+ * Interface for {@link org.apache.nemo.runtime.executor.data.block.Block} placement.
  */
 public interface BlockStore {
   /**
@@ -33,7 +33,7 @@
    * @return the created block.
    * @throws BlockWriteException for any error occurred while trying to create a block.
    *                             (This exception will be thrown to the scheduler
-   *                             through {@link edu.snu.nemo.runtime.executor.Executor} and
+   *                             through {@link org.apache.nemo.runtime.executor.Executor} and
    *                             have to be handled by the scheduler with fault tolerance mechanism.)
    */
   Block createBlock(String blockId) throws BlockWriteException;
@@ -44,7 +44,7 @@
    * @param block the block to write.
    * @throws BlockWriteException if fail to write.
    *                             (This exception will be thrown to the scheduler
-   *                             through {@link edu.snu.nemo.runtime.executor.Executor} and
+   *                             through {@link org.apache.nemo.runtime.executor.Executor} and
    *                             have to be handled by the scheduler with fault tolerance mechanism.)
    */
   void writeBlock(Block block) throws BlockWriteException;
@@ -56,7 +56,7 @@
    * @return the target block (if it exists).
    * @throws BlockFetchException for any error occurred while trying to fetch a block.
    *                             (This exception will be thrown to the scheduler
-   *                             through {@link edu.snu.nemo.runtime.executor.Executor} and
+   *                             through {@link org.apache.nemo.runtime.executor.Executor} and
    *                             have to be handled by the scheduler with fault tolerance mechanism.)
    */
   Optional<Block> readBlock(String blockId) throws BlockFetchException;
@@ -68,7 +68,7 @@
    * @return whether the partition exists or not.
    * @throws BlockFetchException for any error occurred while trying to remove a block.
    *                             (This exception will be thrown to the scheduler
-   *                             through {@link edu.snu.nemo.runtime.executor.Executor} and
+   *                             through {@link org.apache.nemo.runtime.executor.Executor} and
    *                             have to be handled by the scheduler with fault tolerance mechanism.)
    */
   boolean deleteBlock(String blockId);
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/GlusterFileStore.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/GlusterFileStore.java
index 065fd356a..971177d0e 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/GlusterFileStore.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/GlusterFileStore.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.stores;
+package org.apache.nemo.runtime.executor.data.stores;
 
-import edu.snu.nemo.common.exception.BlockFetchException;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.common.exception.BlockWriteException;
-import edu.snu.nemo.runtime.executor.data.*;
-import edu.snu.nemo.runtime.executor.data.block.Block;
-import edu.snu.nemo.runtime.executor.data.streamchainer.Serializer;
-import edu.snu.nemo.runtime.executor.data.metadata.RemoteFileMetadata;
-import edu.snu.nemo.runtime.executor.data.block.FileBlock;
+import org.apache.nemo.common.exception.BlockFetchException;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.common.exception.BlockWriteException;
+import org.apache.nemo.runtime.executor.data.*;
+import org.apache.nemo.runtime.executor.data.block.Block;
+import org.apache.nemo.runtime.executor.data.streamchainer.Serializer;
+import org.apache.nemo.runtime.executor.data.metadata.RemoteFileMetadata;
+import org.apache.nemo.runtime.executor.data.block.FileBlock;
 import org.apache.reef.tang.annotations.Parameter;
 
 import javax.annotation.concurrent.ThreadSafe;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/LocalBlockStore.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/LocalBlockStore.java
index 835635281..62c6c8840 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/LocalBlockStore.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/LocalBlockStore.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.stores;
+package org.apache.nemo.runtime.executor.data.stores;
 
-import edu.snu.nemo.runtime.executor.data.SerializerManager;
-import edu.snu.nemo.runtime.executor.data.block.Block;
+import org.apache.nemo.runtime.executor.data.SerializerManager;
+import org.apache.nemo.runtime.executor.data.block.Block;
 
 import java.util.Map;
 import java.util.Optional;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/LocalFileStore.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/LocalFileStore.java
index 00ce7b35f..80614146a 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/LocalFileStore.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/LocalFileStore.java
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.stores;
+package org.apache.nemo.runtime.executor.data.stores;
 
-import edu.snu.nemo.common.exception.BlockFetchException;
-import edu.snu.nemo.common.exception.BlockWriteException;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.executor.data.*;
-import edu.snu.nemo.runtime.executor.data.block.Block;
-import edu.snu.nemo.runtime.executor.data.streamchainer.Serializer;
-import edu.snu.nemo.runtime.executor.data.metadata.LocalFileMetadata;
-import edu.snu.nemo.runtime.executor.data.block.FileBlock;
+import org.apache.nemo.common.exception.BlockFetchException;
+import org.apache.nemo.common.exception.BlockWriteException;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.executor.data.*;
+import org.apache.nemo.runtime.executor.data.block.Block;
+import org.apache.nemo.runtime.executor.data.streamchainer.Serializer;
+import org.apache.nemo.runtime.executor.data.metadata.LocalFileMetadata;
+import org.apache.nemo.runtime.executor.data.block.FileBlock;
 import org.apache.reef.tang.annotations.Parameter;
 
 import javax.annotation.concurrent.ThreadSafe;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/MemoryStore.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/MemoryStore.java
index 51bd7c1b3..be827402f 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/MemoryStore.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/MemoryStore.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.stores;
+package org.apache.nemo.runtime.executor.data.stores;
 
-import edu.snu.nemo.common.exception.BlockWriteException;
-import edu.snu.nemo.runtime.executor.data.SerializerManager;
-import edu.snu.nemo.runtime.executor.data.block.Block;
-import edu.snu.nemo.runtime.executor.data.block.NonSerializedMemoryBlock;
-import edu.snu.nemo.runtime.executor.data.partition.NonSerializedPartition;
-import edu.snu.nemo.runtime.executor.data.streamchainer.Serializer;
+import org.apache.nemo.common.exception.BlockWriteException;
+import org.apache.nemo.runtime.executor.data.SerializerManager;
+import org.apache.nemo.runtime.executor.data.block.Block;
+import org.apache.nemo.runtime.executor.data.block.NonSerializedMemoryBlock;
+import org.apache.nemo.runtime.executor.data.partition.NonSerializedPartition;
+import org.apache.nemo.runtime.executor.data.streamchainer.Serializer;
 
 import javax.annotation.concurrent.ThreadSafe;
 import javax.inject.Inject;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/RemoteFileStore.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/RemoteFileStore.java
index 1342aa6ef..bbc777dc0 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/RemoteFileStore.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/RemoteFileStore.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.stores;
+package org.apache.nemo.runtime.executor.data.stores;
 
 import org.apache.reef.tang.annotations.DefaultImplementation;
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/SerializedMemoryStore.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/SerializedMemoryStore.java
index b9bea85c7..4cbc4d38a 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/SerializedMemoryStore.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/stores/SerializedMemoryStore.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.stores;
+package org.apache.nemo.runtime.executor.data.stores;
 
-import edu.snu.nemo.common.exception.BlockWriteException;
-import edu.snu.nemo.runtime.executor.data.SerializerManager;
-import edu.snu.nemo.runtime.executor.data.block.Block;
-import edu.snu.nemo.runtime.executor.data.block.SerializedMemoryBlock;
-import edu.snu.nemo.runtime.executor.data.streamchainer.Serializer;
+import org.apache.nemo.common.exception.BlockWriteException;
+import org.apache.nemo.runtime.executor.data.SerializerManager;
+import org.apache.nemo.runtime.executor.data.block.Block;
+import org.apache.nemo.runtime.executor.data.block.SerializedMemoryBlock;
+import org.apache.nemo.runtime.executor.data.streamchainer.Serializer;
 
 import javax.annotation.concurrent.ThreadSafe;
 import javax.inject.Inject;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/CompressionStreamChainer.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/CompressionStreamChainer.java
index 00f4ca216..033233246 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/CompressionStreamChainer.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/CompressionStreamChainer.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.streamchainer;
+package org.apache.nemo.runtime.executor.data.streamchainer;
 
-import edu.snu.nemo.common.exception.UnsupportedCompressionException;
-import edu.snu.nemo.common.ir.edge.executionproperty.CompressionProperty;
+import org.apache.nemo.common.exception.UnsupportedCompressionException;
+import org.apache.nemo.common.ir.edge.executionproperty.CompressionProperty;
 import net.jpountz.lz4.LZ4BlockOutputStream;
 
 import java.io.IOException;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/DecodeStreamChainer.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/DecodeStreamChainer.java
index 6084b6e3a..7359096f6 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/DecodeStreamChainer.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/DecodeStreamChainer.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.streamchainer;
+package org.apache.nemo.runtime.executor.data.streamchainer;
 
 import java.io.IOException;
 import java.io.InputStream;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/DecompressionStreamChainer.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/DecompressionStreamChainer.java
index b36546c71..24a391a4a 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/DecompressionStreamChainer.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/DecompressionStreamChainer.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.streamchainer;
+package org.apache.nemo.runtime.executor.data.streamchainer;
 
-import edu.snu.nemo.common.exception.UnsupportedCompressionException;
-import edu.snu.nemo.common.ir.edge.executionproperty.CompressionProperty;
+import org.apache.nemo.common.exception.UnsupportedCompressionException;
+import org.apache.nemo.common.ir.edge.executionproperty.CompressionProperty;
 import net.jpountz.lz4.LZ4BlockInputStream;
 
 import java.io.IOException;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/EncodeStreamChainer.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/EncodeStreamChainer.java
index b0c754799..77a0f420a 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/EncodeStreamChainer.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/EncodeStreamChainer.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.streamchainer;
+package org.apache.nemo.runtime.executor.data.streamchainer;
 
 import java.io.IOException;
 import java.io.OutputStream;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/Serializer.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/Serializer.java
index e30147a02..81d1d74bb 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/Serializer.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/data/streamchainer/Serializer.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data.streamchainer;
+package org.apache.nemo.runtime.executor.data.streamchainer;
 
-import edu.snu.nemo.common.coder.DecoderFactory;
-import edu.snu.nemo.common.coder.EncoderFactory;
+import org.apache.nemo.common.coder.DecoderFactory;
+import org.apache.nemo.common.coder.EncoderFactory;
 
 import java.util.List;
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/DataTransfer.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/DataTransfer.java
index aec5bbc8b..0d3e70510 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/DataTransfer.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/DataTransfer.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.datatransfer;
+package org.apache.nemo.runtime.executor.datatransfer;
 
 
 /**
  * Contains common parts involved in {@link InputReader} and {@link OutputWriter}.
  * The two classes are involved in
- * intermediate data transfer between {@link edu.snu.nemo.runtime.common.plan.physical.Task}.
+ * intermediate data transfer between {@link org.apache.nemo.runtime.common.plan.physical.Task}.
  */
 public abstract class DataTransfer {
   private final String id;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/DataTransferFactory.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/DataTransferFactory.java
index c96df7b59..e2b2ae921 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/DataTransferFactory.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/DataTransferFactory.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.datatransfer;
+package org.apache.nemo.runtime.executor.datatransfer;
 
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.runtime.common.plan.RuntimeEdge;
-import edu.snu.nemo.runtime.executor.data.BlockManagerWorker;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.runtime.common.plan.RuntimeEdge;
+import org.apache.nemo.runtime.executor.data.BlockManagerWorker;
 import org.apache.reef.tang.annotations.Parameter;
 
 import javax.inject.Inject;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/InputReader.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/InputReader.java
index 0d3c0d4f0..e36b9273a 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/InputReader.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/InputReader.java
@@ -13,24 +13,24 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.datatransfer;
+package org.apache.nemo.runtime.executor.datatransfer;
 
 import com.google.common.annotations.VisibleForTesting;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataStoreProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupPropertyValue;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.common.KeyRange;
-import edu.snu.nemo.runtime.common.plan.RuntimeEdge;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
-import edu.snu.nemo.common.exception.BlockFetchException;
-import edu.snu.nemo.common.exception.UnsupportedCommPatternException;
-import edu.snu.nemo.common.HashRange;
-import edu.snu.nemo.runtime.executor.data.BlockManagerWorker;
-import edu.snu.nemo.runtime.executor.data.DataUtil;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataStoreProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupPropertyValue;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.common.KeyRange;
+import org.apache.nemo.runtime.common.plan.RuntimeEdge;
+import org.apache.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.common.exception.BlockFetchException;
+import org.apache.nemo.common.exception.UnsupportedCommPatternException;
+import org.apache.nemo.common.HashRange;
+import org.apache.nemo.runtime.executor.data.BlockManagerWorker;
+import org.apache.nemo.runtime.executor.data.DataUtil;
 
 import java.util.*;
 import java.util.concurrent.CompletableFuture;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/OutputCollectorImpl.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/OutputCollectorImpl.java
index 260f12678..b489cbb4c 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/OutputCollectorImpl.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/OutputCollectorImpl.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.datatransfer;
+package org.apache.nemo.runtime.executor.datatransfer;
 
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.ir.OutputCollector;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/OutputWriter.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/OutputWriter.java
index b2f2b9abc..9cf272aad 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/OutputWriter.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/datatransfer/OutputWriter.java
@@ -13,18 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.datatransfer;
+package org.apache.nemo.runtime.executor.datatransfer;
 
-import edu.snu.nemo.common.KeyExtractor;
-import edu.snu.nemo.common.exception.*;
-import edu.snu.nemo.common.ir.edge.executionproperty.*;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.plan.RuntimeEdge;
-import edu.snu.nemo.runtime.executor.data.BlockManagerWorker;
-import edu.snu.nemo.runtime.executor.data.block.Block;
-import edu.snu.nemo.runtime.executor.data.partitioner.*;
+import org.apache.nemo.common.KeyExtractor;
+import org.apache.nemo.common.exception.*;
+import org.apache.nemo.common.ir.edge.executionproperty.*;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.plan.RuntimeEdge;
+import org.apache.nemo.runtime.executor.data.BlockManagerWorker;
+import org.apache.nemo.runtime.executor.data.block.Block;
+import org.apache.nemo.runtime.executor.data.partitioner.*;
 
 import java.util.*;
 
@@ -44,7 +44,7 @@
   /**
    * Constructor.
    *
-   * @param hashRangeMultiplier the {@link edu.snu.nemo.conf.JobConf.HashRangeMultiplier}.
+   * @param hashRangeMultiplier the {@link org.apache.nemo.conf.JobConf.HashRangeMultiplier}.
    * @param srcTaskId           the id of the source task.
    * @param dstIrVertex         the destination IR vertex.
    * @param runtimeEdge         the {@link RuntimeEdge}.
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/DataFetcher.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/DataFetcher.java
index 54b0902ed..12e64eacc 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/DataFetcher.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/DataFetcher.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.task;
+package org.apache.nemo.runtime.executor.task;
 
-import edu.snu.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.IRVertex;
 
 import java.io.IOException;
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/ParentTaskDataFetcher.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/ParentTaskDataFetcher.java
index 298dd0f77..16c803091 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/ParentTaskDataFetcher.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/ParentTaskDataFetcher.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.task;
+package org.apache.nemo.runtime.executor.task;
 
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.runtime.executor.data.DataUtil;
-import edu.snu.nemo.runtime.executor.datatransfer.InputReader;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.runtime.executor.data.DataUtil;
+import org.apache.nemo.runtime.executor.datatransfer.InputReader;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/SourceVertexDataFetcher.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/SourceVertexDataFetcher.java
index 343a0c9bd..656c21466 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/SourceVertexDataFetcher.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/SourceVertexDataFetcher.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.task;
+package org.apache.nemo.runtime.executor.task;
 
-import edu.snu.nemo.common.ir.Readable;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.vertex.IRVertex;
 
 import java.io.IOException;
 import java.util.Iterator;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/TaskExecutor.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/TaskExecutor.java
index ca5476a68..9035cbe08 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/TaskExecutor.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/TaskExecutor.java
@@ -13,30 +13,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.task;
+package org.apache.nemo.runtime.executor.task;
 
 import com.google.common.collect.Lists;
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.ir.Readable;
-import edu.snu.nemo.common.ir.edge.executionproperty.AdditionalOutputTagProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.BroadcastVariableIdProperty;
-import edu.snu.nemo.common.ir.vertex.*;
-import edu.snu.nemo.common.ir.vertex.transform.AggregateMetricTransform;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.PersistentConnectionToMasterMap;
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
-import edu.snu.nemo.runtime.common.plan.RuntimeEdge;
-import edu.snu.nemo.runtime.common.state.TaskState;
-import edu.snu.nemo.runtime.executor.MetricMessageSender;
-import edu.snu.nemo.runtime.executor.TaskStateManager;
-import edu.snu.nemo.runtime.executor.TransformContextImpl;
-import edu.snu.nemo.runtime.executor.data.BroadcastManagerWorker;
-import edu.snu.nemo.runtime.executor.datatransfer.*;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.edge.executionproperty.AdditionalOutputTagProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.BroadcastVariableIdProperty;
+import org.apache.nemo.common.ir.vertex.*;
+import org.apache.nemo.common.ir.vertex.transform.AggregateMetricTransform;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.PersistentConnectionToMasterMap;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.runtime.common.plan.RuntimeEdge;
+import org.apache.nemo.runtime.common.state.TaskState;
+import org.apache.nemo.runtime.executor.MetricMessageSender;
+import org.apache.nemo.runtime.executor.TaskStateManager;
+import org.apache.nemo.runtime.executor.TransformContextImpl;
+import org.apache.nemo.runtime.executor.data.BroadcastManagerWorker;
+import org.apache.nemo.runtime.executor.datatransfer.*;
 
 import java.io.IOException;
 import java.util.*;
diff --git a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/VertexHarness.java b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/VertexHarness.java
index f8ea8e054..39cb88dc6 100644
--- a/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/VertexHarness.java
+++ b/runtime/executor/src/main/java/edu/snu/nemo/runtime/executor/task/VertexHarness.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.task;
+package org.apache.nemo.runtime.executor.task;
 
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
-import edu.snu.nemo.runtime.executor.datatransfer.OutputCollectorImpl;
-import edu.snu.nemo.runtime.executor.datatransfer.OutputWriter;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.runtime.executor.datatransfer.OutputCollectorImpl;
+import org.apache.nemo.runtime.executor.datatransfer.OutputWriter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/MetricFlushTest.java b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/MetricFlushTest.java
index 7497ecbf2..14b0b1a4f 100644
--- a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/MetricFlushTest.java
+++ b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/MetricFlushTest.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor;
-
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.*;
-import edu.snu.nemo.runtime.common.message.local.LocalMessageDispatcher;
-import edu.snu.nemo.runtime.common.message.local.LocalMessageEnvironment;
-import edu.snu.nemo.runtime.master.MetricManagerMaster;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
-import edu.snu.nemo.runtime.master.scheduler.ExecutorRegistry;
+package org.apache.nemo.runtime.executor;
+
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.*;
+import org.apache.nemo.runtime.common.message.local.LocalMessageDispatcher;
+import org.apache.nemo.runtime.common.message.local.LocalMessageEnvironment;
+import org.apache.nemo.runtime.master.MetricManagerMaster;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.runtime.master.scheduler.ExecutorRegistry;
 import org.apache.reef.tang.Configuration;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
diff --git a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/TestUtil.java b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/TestUtil.java
index 28e455c0a..90710484a 100644
--- a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/TestUtil.java
+++ b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/TestUtil.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor;
+package org.apache.nemo.runtime.executor;
 
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.plan.Stage;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.plan.Stage;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/TransformContextImplTest.java b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/TransformContextImplTest.java
index b2f90e6d9..1261569ad 100644
--- a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/TransformContextImplTest.java
+++ b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/TransformContextImplTest.java
@@ -14,10 +14,10 @@
  * limitations under the License.
  */
 
-package edu.snu.nemo.runtime.executor;
+package org.apache.nemo.runtime.executor;
 
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
-import edu.snu.nemo.runtime.executor.data.BroadcastManagerWorker;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.runtime.executor.data.BroadcastManagerWorker;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/data/BlockStoreTest.java b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/data/BlockStoreTest.java
index dc8f1b297..b85185525 100644
--- a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/data/BlockStoreTest.java
+++ b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/data/BlockStoreTest.java
@@ -13,29 +13,29 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data;
-
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.coder.*;
-import edu.snu.nemo.common.ir.IdManager;
-import edu.snu.nemo.common.ir.edge.executionproperty.CompressionProperty;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.common.HashRange;
-import edu.snu.nemo.common.KeyRange;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.local.LocalMessageDispatcher;
-import edu.snu.nemo.runtime.common.message.local.LocalMessageEnvironment;
-import edu.snu.nemo.runtime.common.state.BlockState;
-import edu.snu.nemo.runtime.executor.TestUtil;
-import edu.snu.nemo.runtime.executor.data.block.Block;
-import edu.snu.nemo.runtime.executor.data.partition.NonSerializedPartition;
-import edu.snu.nemo.runtime.executor.data.streamchainer.DecompressionStreamChainer;
-import edu.snu.nemo.runtime.executor.data.streamchainer.CompressionStreamChainer;
-import edu.snu.nemo.runtime.executor.data.streamchainer.Serializer;
-import edu.snu.nemo.runtime.executor.data.stores.*;
-import edu.snu.nemo.runtime.master.BlockManagerMaster;
-import edu.snu.nemo.runtime.master.RuntimeMaster;
+package org.apache.nemo.runtime.executor.data;
+
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.coder.*;
+import org.apache.nemo.common.ir.IdManager;
+import org.apache.nemo.common.ir.edge.executionproperty.CompressionProperty;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.common.HashRange;
+import org.apache.nemo.common.KeyRange;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.local.LocalMessageDispatcher;
+import org.apache.nemo.runtime.common.message.local.LocalMessageEnvironment;
+import org.apache.nemo.runtime.common.state.BlockState;
+import org.apache.nemo.runtime.executor.TestUtil;
+import org.apache.nemo.runtime.executor.data.block.Block;
+import org.apache.nemo.runtime.executor.data.partition.NonSerializedPartition;
+import org.apache.nemo.runtime.executor.data.streamchainer.DecompressionStreamChainer;
+import org.apache.nemo.runtime.executor.data.streamchainer.CompressionStreamChainer;
+import org.apache.nemo.runtime.executor.data.streamchainer.Serializer;
+import org.apache.nemo.runtime.executor.data.stores.*;
+import org.apache.nemo.runtime.master.BlockManagerMaster;
+import org.apache.nemo.runtime.master.RuntimeMaster;
 import org.apache.commons.io.FileUtils;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
@@ -59,7 +59,7 @@
 import java.util.stream.Stream;
 import java.util.stream.StreamSupport;
 
-import static edu.snu.nemo.runtime.common.RuntimeTestUtil.getRangedNumList;
+import static org.apache.nemo.runtime.common.RuntimeTestUtil.getRangedNumList;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.Matchers.any;
diff --git a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/data/BlockTest.java b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/data/BlockTest.java
index 46c6ce937..c3acfda49 100644
--- a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/data/BlockTest.java
+++ b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/data/BlockTest.java
@@ -13,18 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data;
-
-import edu.snu.nemo.common.HashRange;
-import edu.snu.nemo.common.coder.IntDecoderFactory;
-import edu.snu.nemo.common.coder.IntEncoderFactory;
-import edu.snu.nemo.runtime.executor.data.block.Block;
-import edu.snu.nemo.runtime.executor.data.block.FileBlock;
-import edu.snu.nemo.runtime.executor.data.block.NonSerializedMemoryBlock;
-import edu.snu.nemo.runtime.executor.data.block.SerializedMemoryBlock;
-import edu.snu.nemo.runtime.executor.data.metadata.LocalFileMetadata;
-import edu.snu.nemo.runtime.executor.data.partition.NonSerializedPartition;
-import edu.snu.nemo.runtime.executor.data.streamchainer.Serializer;
+package org.apache.nemo.runtime.executor.data;
+
+import org.apache.nemo.common.HashRange;
+import org.apache.nemo.common.coder.IntDecoderFactory;
+import org.apache.nemo.common.coder.IntEncoderFactory;
+import org.apache.nemo.runtime.executor.data.block.Block;
+import org.apache.nemo.runtime.executor.data.block.FileBlock;
+import org.apache.nemo.runtime.executor.data.block.NonSerializedMemoryBlock;
+import org.apache.nemo.runtime.executor.data.block.SerializedMemoryBlock;
+import org.apache.nemo.runtime.executor.data.metadata.LocalFileMetadata;
+import org.apache.nemo.runtime.executor.data.partition.NonSerializedPartition;
+import org.apache.nemo.runtime.executor.data.streamchainer.Serializer;
 import org.apache.commons.io.FileUtils;
 import org.junit.Assert;
 import org.junit.Before;
@@ -67,7 +67,7 @@ public void testNonSerializedMemoryBlock() throws Exception {
   }
 
   /**
-   * Test {@link edu.snu.nemo.runtime.executor.data.block.SerializedMemoryBlock}.
+   * Test {@link org.apache.nemo.runtime.executor.data.block.SerializedMemoryBlock}.
    */
   @Test(timeout = 10000)
   public void testSerializedMemoryBlock() throws Exception {
diff --git a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/data/BlockTransferThrottlerTest.java b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/data/BlockTransferThrottlerTest.java
index 2c815b759..2920e1ba1 100644
--- a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/data/BlockTransferThrottlerTest.java
+++ b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/data/BlockTransferThrottlerTest.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.data;
+package org.apache.nemo.runtime.executor.data;
 
-import edu.snu.nemo.conf.JobConf;
+import org.apache.nemo.conf.JobConf;
 import org.apache.reef.tang.Configuration;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
diff --git a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/datatransfer/DataTransferTest.java b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/datatransfer/DataTransferTest.java
index 01af83ffc..057aeb9dd 100644
--- a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/datatransfer/DataTransferTest.java
+++ b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/datatransfer/DataTransferTest.java
@@ -13,38 +13,38 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.datatransfer;
-
-import edu.snu.nemo.common.*;
-import edu.snu.nemo.common.coder.*;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.*;
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
-import edu.snu.nemo.common.ir.vertex.SourceVertex;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ScheduleGroupProperty;
-import edu.snu.nemo.common.test.EmptyComponents;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.executionproperty.ExecutionPropertyMap;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.MessageParameters;
-import edu.snu.nemo.runtime.common.message.PersistentConnectionToMasterMap;
-import edu.snu.nemo.runtime.common.message.local.LocalMessageDispatcher;
-import edu.snu.nemo.runtime.common.message.local.LocalMessageEnvironment;
-import edu.snu.nemo.runtime.common.plan.RuntimeEdge;
-import edu.snu.nemo.runtime.common.plan.Stage;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
-import edu.snu.nemo.runtime.executor.Executor;
-import edu.snu.nemo.runtime.executor.TestUtil;
-import edu.snu.nemo.runtime.executor.data.BlockManagerWorker;
-import edu.snu.nemo.runtime.executor.data.SerializerManager;
-import edu.snu.nemo.runtime.master.*;
-import edu.snu.nemo.runtime.master.eventhandler.UpdatePhysicalPlanEventHandler;
+package org.apache.nemo.runtime.executor.datatransfer;
+
+import org.apache.nemo.common.*;
+import org.apache.nemo.common.coder.*;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.*;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.vertex.SourceVertex;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ScheduleGroupProperty;
+import org.apache.nemo.common.test.EmptyComponents;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.executionproperty.ExecutionPropertyMap;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.MessageParameters;
+import org.apache.nemo.runtime.common.message.PersistentConnectionToMasterMap;
+import org.apache.nemo.runtime.common.message.local.LocalMessageDispatcher;
+import org.apache.nemo.runtime.common.message.local.LocalMessageEnvironment;
+import org.apache.nemo.runtime.common.plan.RuntimeEdge;
+import org.apache.nemo.runtime.common.plan.Stage;
+import org.apache.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.runtime.executor.Executor;
+import org.apache.nemo.runtime.executor.TestUtil;
+import org.apache.nemo.runtime.executor.data.BlockManagerWorker;
+import org.apache.nemo.runtime.executor.data.SerializerManager;
+import org.apache.nemo.runtime.master.*;
+import org.apache.nemo.runtime.master.eventhandler.UpdatePhysicalPlanEventHandler;
 import org.apache.beam.sdk.values.KV;
 import org.apache.commons.io.FileUtils;
 import org.apache.reef.driver.evaluator.EvaluatorRequestor;
@@ -74,9 +74,9 @@
 import java.util.stream.IntStream;
 import java.util.stream.Stream;
 
-import static edu.snu.nemo.common.dag.DAG.EMPTY_DAG_DIRECTORY;
-import static edu.snu.nemo.runtime.common.RuntimeTestUtil.getRangedNumList;
-import static edu.snu.nemo.runtime.common.RuntimeTestUtil.flatten;
+import static org.apache.nemo.common.dag.DAG.EMPTY_DAG_DIRECTORY;
+import static org.apache.nemo.runtime.common.RuntimeTestUtil.getRangedNumList;
+import static org.apache.nemo.runtime.common.RuntimeTestUtil.flatten;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.mock;
diff --git a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/task/ParentTaskDataFetcherTest.java b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/task/ParentTaskDataFetcherTest.java
index 12e512451..d486df54d 100644
--- a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/task/ParentTaskDataFetcherTest.java
+++ b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/task/ParentTaskDataFetcherTest.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.task;
+package org.apache.nemo.runtime.executor.task;
 
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.runtime.executor.data.DataUtil;
-import edu.snu.nemo.runtime.executor.datatransfer.InputReader;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.runtime.executor.data.DataUtil;
+import org.apache.nemo.runtime.executor.datatransfer.InputReader;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.powermock.core.classloader.annotations.PrepareForTest;
diff --git a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/task/TaskExecutorTest.java b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/task/TaskExecutorTest.java
index b1a145033..8e62947a8 100644
--- a/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/task/TaskExecutorTest.java
+++ b/runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/task/TaskExecutorTest.java
@@ -13,38 +13,38 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.executor.task;
-
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.ir.OutputCollector;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.Readable;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.AdditionalOutputTagProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.BroadcastVariableIdProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataStoreProperty;
-import edu.snu.nemo.common.ir.executionproperty.EdgeExecutionProperty;
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
-import edu.snu.nemo.common.ir.vertex.InMemorySourceVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
-import edu.snu.nemo.common.ir.executionproperty.ExecutionPropertyMap;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.message.PersistentConnectionToMasterMap;
-import edu.snu.nemo.runtime.common.plan.Stage;
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
-import edu.snu.nemo.runtime.common.plan.RuntimeEdge;
-import edu.snu.nemo.runtime.executor.MetricMessageSender;
-import edu.snu.nemo.runtime.executor.TaskStateManager;
-import edu.snu.nemo.runtime.executor.data.BroadcastManagerWorker;
-import edu.snu.nemo.runtime.executor.data.DataUtil;
-import edu.snu.nemo.runtime.executor.datatransfer.DataTransferFactory;
-import edu.snu.nemo.runtime.executor.datatransfer.InputReader;
-import edu.snu.nemo.runtime.executor.datatransfer.OutputWriter;
+package org.apache.nemo.runtime.executor.task;
+
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.ir.OutputCollector;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.AdditionalOutputTagProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.BroadcastVariableIdProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataStoreProperty;
+import org.apache.nemo.common.ir.executionproperty.EdgeExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.vertex.InMemorySourceVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.ir.executionproperty.ExecutionPropertyMap;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.message.PersistentConnectionToMasterMap;
+import org.apache.nemo.runtime.common.plan.Stage;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.runtime.common.plan.RuntimeEdge;
+import org.apache.nemo.runtime.executor.MetricMessageSender;
+import org.apache.nemo.runtime.executor.TaskStateManager;
+import org.apache.nemo.runtime.executor.data.BroadcastManagerWorker;
+import org.apache.nemo.runtime.executor.data.DataUtil;
+import org.apache.nemo.runtime.executor.datatransfer.DataTransferFactory;
+import org.apache.nemo.runtime.executor.datatransfer.InputReader;
+import org.apache.nemo.runtime.executor.datatransfer.OutputWriter;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/runtime/master/pom.xml b/runtime/master/pom.xml
index dace8c998..1f3f70e15 100644
--- a/runtime/master/pom.xml
+++ b/runtime/master/pom.xml
@@ -19,7 +19,7 @@ limitations under the License.
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <artifactId>nemo-project</artifactId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../../</relativePath>
@@ -37,17 +37,17 @@ limitations under the License.
 
     <dependencies>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-common</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-runtime-common</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-runtime-test</artifactId>
             <version>${project.version}</version>
         </dependency>
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/BlockManagerMaster.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/BlockManagerMaster.java
index 052a644cf..10e802845 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/BlockManagerMaster.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/BlockManagerMaster.java
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
-
-import edu.snu.nemo.common.exception.IllegalMessageException;
-import edu.snu.nemo.common.exception.UnknownExecutionStateException;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.exception.AbsentBlockException;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.message.MessageContext;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.MessageListener;
-import edu.snu.nemo.runtime.common.state.BlockState;
+package org.apache.nemo.runtime.master;
+
+import org.apache.nemo.common.exception.IllegalMessageException;
+import org.apache.nemo.common.exception.UnknownExecutionStateException;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.exception.AbsentBlockException;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.message.MessageContext;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.MessageListener;
+import org.apache.nemo.runtime.common.state.BlockState;
 
 import com.google.common.annotations.VisibleForTesting;
 
@@ -47,7 +47,7 @@
 /**
  * Master-side block manager.
  * This implementation assumes that only a single user application can submit (maybe multiple) plans through
- * {@link edu.snu.nemo.runtime.master.scheduler.Scheduler}.
+ * {@link org.apache.nemo.runtime.master.scheduler.Scheduler}.
  */
 @ThreadSafe
 @DriverSide
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/BlockMetadata.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/BlockMetadata.java
index a5eb8c332..50e93986b 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/BlockMetadata.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/BlockMetadata.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
+package org.apache.nemo.runtime.master;
 
-import edu.snu.nemo.common.StateMachine;
-import edu.snu.nemo.common.exception.IllegalStateTransitionException;
-import edu.snu.nemo.runtime.common.state.BlockState;
-import edu.snu.nemo.runtime.common.exception.AbsentBlockException;
+import org.apache.nemo.common.StateMachine;
+import org.apache.nemo.common.exception.IllegalStateTransitionException;
+import org.apache.nemo.runtime.common.state.BlockState;
+import org.apache.nemo.runtime.common.exception.AbsentBlockException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/BroadcastManagerMaster.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/BroadcastManagerMaster.java
index 77c6bbce9..a1e2f1dc7 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/BroadcastManagerMaster.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/BroadcastManagerMaster.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
+package org.apache.nemo.runtime.master;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/ClientRPC.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/ClientRPC.java
index 2da083c1c..97e5f46e7 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/ClientRPC.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/ClientRPC.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
+package org.apache.nemo.runtime.master;
 
 import com.google.protobuf.InvalidProtocolBufferException;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
 import org.apache.reef.tang.annotations.Parameter;
 import org.apache.reef.wake.EventHandler;
 import org.apache.reef.wake.impl.SyncStage;
@@ -139,7 +139,7 @@ private void ensureRunning() {
   }
 
   /**
-   * Provides encoder for {@link edu.snu.nemo.runtime.common.comm.ControlMessage.DriverToClientMessage}.
+   * Provides encoder for {@link org.apache.nemo.runtime.common.comm.ControlMessage.DriverToClientMessage}.
    */
   private static final class DriverToClientMessageEncoder implements Encoder<ControlMessage.DriverToClientMessage> {
     @Override
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/DataSkewDynOptDataHandler.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/DataSkewDynOptDataHandler.java
index 439c4ffcc..8295b635d 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/DataSkewDynOptDataHandler.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/DataSkewDynOptDataHandler.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
+package org.apache.nemo.runtime.master;
 
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
 
 import java.util.HashMap;
 import java.util.List;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/DynOptDataHandler.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/DynOptDataHandler.java
index 66fa31010..8312a832f 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/DynOptDataHandler.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/DynOptDataHandler.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
+package org.apache.nemo.runtime.master;
 
 /**
  * Handler for aggregating data used in dynamic optimization.
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricBroadcaster.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricBroadcaster.java
index f9f0be612..93c576be4 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricBroadcaster.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricBroadcaster.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
+package org.apache.nemo.runtime.master;
 
 import org.eclipse.jetty.websocket.api.Session;
 import org.slf4j.Logger;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricManagerMaster.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricManagerMaster.java
index 00a32c42f..8c850ee13 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricManagerMaster.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricManagerMaster.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
+package org.apache.nemo.runtime.master;
 
 import javax.inject.Inject;
 
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.master.scheduler.ExecutorRegistry;
-import edu.snu.nemo.runtime.common.metric.Metric;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.master.scheduler.ExecutorRegistry;
+import org.apache.nemo.runtime.common.metric.Metric;
 import org.apache.reef.annotations.audience.DriverSide;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricMessageHandler.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricMessageHandler.java
index 15ee0834a..cde076aa2 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricMessageHandler.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricMessageHandler.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
+package org.apache.nemo.runtime.master;
 
 import org.apache.reef.tang.annotations.DefaultImplementation;
 
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricStore.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricStore.java
index 01e4b3422..57bac19fc 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricStore.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/MetricStore.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
+package org.apache.nemo.runtime.master;
 
 import com.fasterxml.jackson.core.JsonEncoding;
 import com.fasterxml.jackson.core.JsonFactory;
 import com.fasterxml.jackson.core.JsonGenerator;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
-import edu.snu.nemo.common.exception.UnsupportedMetricException;
-import edu.snu.nemo.runtime.common.metric.*;
+import org.apache.nemo.common.exception.UnsupportedMetricException;
+import org.apache.nemo.runtime.common.metric.*;
 
 import java.io.*;
 import java.util.*;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/PlanAppender.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/PlanAppender.java
index 20b065b00..671540333 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/PlanAppender.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/PlanAppender.java
@@ -13,23 +13,23 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
+package org.apache.nemo.runtime.master;
 
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.IdManager;
-import edu.snu.nemo.common.ir.edge.executionproperty.CacheIDProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupPropertyValue;
-import edu.snu.nemo.common.ir.vertex.CachedSourceVertex;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.IgnoreSchedulingTempDataReceiverProperty;
-import edu.snu.nemo.runtime.common.exception.PlanAppenderException;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.common.plan.RuntimeEdge;
-import edu.snu.nemo.runtime.common.plan.Stage;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.IdManager;
+import org.apache.nemo.common.ir.edge.executionproperty.CacheIDProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupPropertyValue;
+import org.apache.nemo.common.ir.vertex.CachedSourceVertex;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.IgnoreSchedulingTempDataReceiverProperty;
+import org.apache.nemo.runtime.common.exception.PlanAppenderException;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.common.plan.RuntimeEdge;
+import org.apache.nemo.runtime.common.plan.Stage;
+import org.apache.nemo.runtime.common.plan.StageEdge;
 
 import java.util.HashMap;
 import java.util.Map;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/PlanStateManager.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/PlanStateManager.java
index 9450b58fc..84b274ca1 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/PlanStateManager.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/PlanStateManager.java
@@ -13,19 +13,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
+package org.apache.nemo.runtime.master;
 
 import com.google.common.annotations.VisibleForTesting;
-import edu.snu.nemo.common.exception.IllegalStateTransitionException;
-import edu.snu.nemo.common.exception.UnknownExecutionStateException;
-import edu.snu.nemo.common.StateMachine;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ClonedSchedulingProperty;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.common.plan.Stage;
-import edu.snu.nemo.runtime.common.state.PlanState;
-import edu.snu.nemo.runtime.common.state.StageState;
+import org.apache.nemo.common.exception.IllegalStateTransitionException;
+import org.apache.nemo.common.exception.UnknownExecutionStateException;
+import org.apache.nemo.common.StateMachine;
+import org.apache.nemo.common.ir.vertex.executionproperty.ClonedSchedulingProperty;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.common.plan.Stage;
+import org.apache.nemo.runtime.common.state.PlanState;
+import org.apache.nemo.runtime.common.state.StageState;
 
 import java.io.File;
 import java.io.IOException;
@@ -37,10 +37,10 @@
 import java.util.concurrent.locks.ReentrantLock;
 import java.util.stream.Collectors;
 
-import edu.snu.nemo.runtime.common.state.TaskState;
-import edu.snu.nemo.runtime.common.metric.JobMetric;
-import edu.snu.nemo.runtime.common.metric.StageMetric;
-import edu.snu.nemo.runtime.common.metric.TaskMetric;
+import org.apache.nemo.runtime.common.state.TaskState;
+import org.apache.nemo.runtime.common.metric.JobMetric;
+import org.apache.nemo.runtime.common.metric.StageMetric;
+import org.apache.nemo.runtime.common.metric.TaskMetric;
 import org.apache.reef.annotations.audience.DriverSide;
 import org.apache.reef.tang.annotations.Parameter;
 import org.slf4j.Logger;
@@ -49,7 +49,7 @@
 import javax.annotation.concurrent.ThreadSafe;
 import javax.inject.Inject;
 
-import static edu.snu.nemo.common.dag.DAG.EMPTY_DAG_DIRECTORY;
+import static org.apache.nemo.common.dag.DAG.EMPTY_DAG_DIRECTORY;
 
 /**
  * Maintains three levels of state machines (PlanState, StageState, and TaskState) of a physical plan.
@@ -287,9 +287,9 @@ public synchronized boolean setNumOfClones(final String stageId, final int taskI
    * Updates the state of a task.
    * Task state changes can occur both in master and executor.
    * State changes that occur in master are
-   * initiated in {@link edu.snu.nemo.runtime.master.scheduler.BatchScheduler}.
+   * initiated in {@link org.apache.nemo.runtime.master.scheduler.BatchScheduler}.
    * State changes that occur in executors are sent to master as a control message,
-   * and the call to this method is initiated in {@link edu.snu.nemo.runtime.master.scheduler.BatchScheduler}
+   * and the call to this method is initiated in {@link org.apache.nemo.runtime.master.scheduler.BatchScheduler}
    * when the message/event is received.
    *
    * @param taskId       the ID of the task.
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/RuntimeMaster.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/RuntimeMaster.java
index de6df9241..9b972aead 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/RuntimeMaster.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/RuntimeMaster.java
@@ -13,25 +13,25 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
+package org.apache.nemo.runtime.master;
 
 import com.google.protobuf.ByteString;
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.exception.*;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageContext;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.MessageListener;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.common.state.TaskState;
-import edu.snu.nemo.runtime.master.scheduler.BatchScheduler;
-import edu.snu.nemo.runtime.master.servlet.*;
-import edu.snu.nemo.runtime.master.resource.ContainerManager;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
-import edu.snu.nemo.runtime.master.resource.ResourceSpecification;
-import edu.snu.nemo.runtime.master.scheduler.Scheduler;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.exception.*;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageContext;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.MessageListener;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.common.state.TaskState;
+import org.apache.nemo.runtime.master.scheduler.BatchScheduler;
+import org.apache.nemo.runtime.master.servlet.*;
+import org.apache.nemo.runtime.master.resource.ContainerManager;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.runtime.master.resource.ResourceSpecification;
+import org.apache.nemo.runtime.master.scheduler.Scheduler;
 
 import org.apache.commons.lang3.SerializationUtils;
 import org.apache.reef.annotations.audience.DriverSide;
@@ -53,8 +53,8 @@
 import java.util.concurrent.*;
 import java.util.concurrent.atomic.AtomicInteger;
 
-import static edu.snu.nemo.runtime.common.state.TaskState.State.COMPLETE;
-import static edu.snu.nemo.runtime.common.state.TaskState.State.ON_HOLD;
+import static org.apache.nemo.runtime.common.state.TaskState.State.COMPLETE;
+import static org.apache.nemo.runtime.common.state.TaskState.State.ON_HOLD;
 
 /**
  * (WARNING) Use runtimeMasterThread for all public methods to avoid race conditions.
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/eventhandler/UpdatePhysicalPlanEventHandler.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/eventhandler/UpdatePhysicalPlanEventHandler.java
index 7ae8a25ab..e0c75cff4 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/eventhandler/UpdatePhysicalPlanEventHandler.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/eventhandler/UpdatePhysicalPlanEventHandler.java
@@ -16,12 +16,12 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package edu.snu.nemo.runtime.master.eventhandler;
+package org.apache.nemo.runtime.master.eventhandler;
 
-import edu.snu.nemo.common.eventhandler.CompilerEventHandler;
-import edu.snu.nemo.runtime.common.eventhandler.UpdatePhysicalPlanEvent;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.master.scheduler.Scheduler;
+import org.apache.nemo.common.eventhandler.CompilerEventHandler;
+import org.apache.nemo.runtime.common.eventhandler.UpdatePhysicalPlanEvent;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.master.scheduler.Scheduler;
 
 import javax.inject.Inject;
 
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/resource/ContainerManager.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/resource/ContainerManager.java
index a099a11ef..b29466d8c 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/resource/ContainerManager.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/resource/ContainerManager.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.resource;
+package org.apache.nemo.runtime.master.resource;
 
-import edu.snu.nemo.common.exception.ContainerException;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.message.FailedMessageSender;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.MessageSender;
+import org.apache.nemo.common.exception.ContainerException;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.message.FailedMessageSender;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.MessageSender;
 import org.apache.reef.annotations.audience.DriverSide;
 import org.apache.reef.driver.context.ActiveContext;
 import org.apache.reef.driver.evaluator.AllocatedEvaluator;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/resource/ExecutorRepresenter.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/resource/ExecutorRepresenter.java
index e95b26046..4833189e7 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/resource/ExecutorRepresenter.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/resource/ExecutorRepresenter.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.resource;
+package org.apache.nemo.runtime.master.resource;
 
 import com.google.protobuf.ByteString;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceSlotProperty;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.MessageSender;
-import edu.snu.nemo.runtime.common.plan.Task;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceSlotProperty;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.MessageSender;
+import org.apache.nemo.runtime.common.plan.Task;
 import org.apache.commons.lang3.SerializationUtils;
 import org.apache.reef.driver.context.ActiveContext;
 
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/resource/ResourceSpecification.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/resource/ResourceSpecification.java
index d0b3958bf..730801df7 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/resource/ResourceSpecification.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/resource/ResourceSpecification.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.resource;
+package org.apache.nemo.runtime.master.resource;
 
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
 
 /**
  * Represents the specifications of a resource.
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/BatchScheduler.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/BatchScheduler.java
index 21e196e7b..152175b16 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/BatchScheduler.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/BatchScheduler.java
@@ -13,30 +13,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
 import com.google.common.collect.Sets;
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.Readable;
-import edu.snu.nemo.common.ir.edge.executionproperty.MetricCollectionProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ClonedSchedulingProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.IgnoreSchedulingTempDataReceiverProperty;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.eventhandler.DynamicOptimizationEvent;
-import edu.snu.nemo.runtime.common.plan.*;
-import edu.snu.nemo.runtime.common.state.BlockState;
-import edu.snu.nemo.runtime.common.state.TaskState;
-import edu.snu.nemo.runtime.master.PlanAppender;
-import edu.snu.nemo.runtime.master.DataSkewDynOptDataHandler;
-import edu.snu.nemo.runtime.master.DynOptDataHandler;
-import edu.snu.nemo.runtime.master.eventhandler.UpdatePhysicalPlanEventHandler;
-import edu.snu.nemo.common.exception.*;
-import edu.snu.nemo.runtime.common.state.StageState;
-import edu.snu.nemo.runtime.master.BlockManagerMaster;
-import edu.snu.nemo.runtime.master.PlanStateManager;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.edge.executionproperty.MetricCollectionProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ClonedSchedulingProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.IgnoreSchedulingTempDataReceiverProperty;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.eventhandler.DynamicOptimizationEvent;
+import org.apache.nemo.runtime.common.plan.*;
+import org.apache.nemo.runtime.common.state.BlockState;
+import org.apache.nemo.runtime.common.state.TaskState;
+import org.apache.nemo.runtime.master.PlanAppender;
+import org.apache.nemo.runtime.master.DataSkewDynOptDataHandler;
+import org.apache.nemo.runtime.master.DynOptDataHandler;
+import org.apache.nemo.runtime.master.eventhandler.UpdatePhysicalPlanEventHandler;
+import org.apache.nemo.common.exception.*;
+import org.apache.nemo.runtime.common.state.StageState;
+import org.apache.nemo.runtime.master.BlockManagerMaster;
+import org.apache.nemo.runtime.master.PlanStateManager;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 import org.apache.commons.lang.mutable.MutableBoolean;
 import org.apache.reef.annotations.audience.DriverSide;
 import org.slf4j.LoggerFactory;
@@ -70,7 +70,7 @@
   private final PlanStateManager planStateManager;
 
   /**
-   * Other necessary components of this {@link edu.snu.nemo.runtime.master.RuntimeMaster}.
+   * Other necessary components of this {@link org.apache.nemo.runtime.master.RuntimeMaster}.
    */
   private final BlockManagerMaster blockManagerMaster;
   private final PubSubEventHandlerWrapper pubSubEventHandlerWrapper;
@@ -423,7 +423,7 @@ private void onTaskExecutionComplete(final String executorId,
    * The edge is annotated with {@link MetricCollectionProperty}, which is an outgoing edge of
    * a parent of the stage put on hold.
    *
-   * See {@link edu.snu.nemo.compiler.optimizer.pass.compiletime.reshaping.SkewReshapingPass}
+   * See {@link org.apache.nemo.compiler.optimizer.pass.compiletime.reshaping.SkewReshapingPass}
    * for setting the target edge of dynamic optimization.
    *
    * @param taskId the task ID that sent stage-level aggregated metric for dynamic optimization.
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/ContainerTypeAwareSchedulingConstraint.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/ContainerTypeAwareSchedulingConstraint.java
index 9e79ec1a3..c8856e9c3 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/ContainerTypeAwareSchedulingConstraint.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/ContainerTypeAwareSchedulingConstraint.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.common.ir.executionproperty.AssociatedProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.common.ir.executionproperty.AssociatedProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 
 import javax.inject.Inject;
 
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/ExecutorRegistry.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/ExecutorRegistry.java
index 636031618..0db7769c5 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/ExecutorRegistry.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/ExecutorRegistry.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
 import com.google.common.annotations.VisibleForTesting;
-import edu.snu.nemo.common.Pair;
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.common.Pair;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 import org.apache.reef.annotations.audience.DriverSide;
 
 import javax.annotation.concurrent.ThreadSafe;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/FreeSlotSchedulingConstraint.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/FreeSlotSchedulingConstraint.java
index 1726cdbcd..84dc11914 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/FreeSlotSchedulingConstraint.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/FreeSlotSchedulingConstraint.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.common.ir.executionproperty.AssociatedProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceSlotProperty;
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.common.ir.executionproperty.AssociatedProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceSlotProperty;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 
 import javax.inject.Inject;
 
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/LocalitySchedulingConstraint.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/LocalitySchedulingConstraint.java
index 769719cef..85741e344 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/LocalitySchedulingConstraint.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/LocalitySchedulingConstraint.java
@@ -13,20 +13,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.common.ir.Readable;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupPropertyValue;
-import edu.snu.nemo.common.ir.executionproperty.AssociatedProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceLocalityProperty;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.common.state.BlockState;
-import edu.snu.nemo.runtime.master.BlockManagerMaster;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.common.ir.Readable;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DuplicateEdgeGroupPropertyValue;
+import org.apache.nemo.common.ir.executionproperty.AssociatedProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceLocalityProperty;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.common.state.BlockState;
+import org.apache.nemo.runtime.master.BlockManagerMaster;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 import org.apache.reef.annotations.audience.DriverSide;
 
 import javax.annotation.concurrent.ThreadSafe;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/MinOccupancyFirstSchedulingPolicy.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/MinOccupancyFirstSchedulingPolicy.java
index 0fa51b582..3fd0f70a8 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/MinOccupancyFirstSchedulingPolicy.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/MinOccupancyFirstSchedulingPolicy.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 import org.apache.reef.annotations.audience.DriverSide;
 
 import javax.annotation.concurrent.ThreadSafe;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/NodeShareSchedulingConstraint.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/NodeShareSchedulingConstraint.java
index 6ec8eb436..72da72ff6 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/NodeShareSchedulingConstraint.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/NodeShareSchedulingConstraint.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.common.ir.executionproperty.AssociatedProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceSiteProperty;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.common.ir.executionproperty.AssociatedProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceSiteProperty;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 
 import javax.inject.Inject;
 import java.util.*;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/PendingTaskCollectionPointer.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/PendingTaskCollectionPointer.java
index 15deb008c..4e763ca3f 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/PendingTaskCollectionPointer.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/PendingTaskCollectionPointer.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.common.plan.Task;
 
 import net.jcip.annotations.ThreadSafe;
 
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/Scheduler.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/Scheduler.java
index d7f545601..00f950b15 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/Scheduler.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/Scheduler.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.common.state.TaskState;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.common.state.TaskState;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 import org.apache.reef.annotations.audience.DriverSide;
 import org.apache.reef.tang.annotations.DefaultImplementation;
 
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SchedulingConstraint.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SchedulingConstraint.java
index 7e7134414..7afbe6d48 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SchedulingConstraint.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SchedulingConstraint.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 import org.apache.reef.annotations.audience.DriverSide;
 
 import javax.annotation.concurrent.ThreadSafe;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SchedulingConstraintRegistry.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SchedulingConstraintRegistry.java
index 6638a3644..a0ec95eed 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SchedulingConstraintRegistry.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SchedulingConstraintRegistry.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.common.ir.executionproperty.AssociatedProperty;
-import edu.snu.nemo.common.ir.executionproperty.ExecutionProperty;
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.AssociatedProperty;
+import org.apache.nemo.common.ir.executionproperty.ExecutionProperty;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
 import org.apache.reef.annotations.audience.DriverSide;
 
 import javax.annotation.concurrent.ThreadSafe;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SchedulingPolicy.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SchedulingPolicy.java
index 95288e7ee..cbcb63c39 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SchedulingPolicy.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SchedulingPolicy.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 import net.jcip.annotations.ThreadSafe;
 import org.apache.reef.annotations.audience.DriverSide;
 import org.apache.reef.tang.annotations.DefaultImplementation;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SkewnessAwareSchedulingConstraint.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SkewnessAwareSchedulingConstraint.java
index cf593a1b1..937cb5a89 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SkewnessAwareSchedulingConstraint.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/SkewnessAwareSchedulingConstraint.java
@@ -13,19 +13,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
 import com.google.common.annotations.VisibleForTesting;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataSkewMetricProperty;
-import edu.snu.nemo.common.ir.executionproperty.AssociatedProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceSkewedDataProperty;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.common.HashRange;
-import edu.snu.nemo.common.KeyRange;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataSkewMetricProperty;
+import org.apache.nemo.common.ir.executionproperty.AssociatedProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceSkewedDataProperty;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.common.HashRange;
+import org.apache.nemo.common.KeyRange;
+import org.apache.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 import org.apache.reef.annotations.audience.DriverSide;
 
 import javax.annotation.concurrent.ThreadSafe;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/TaskDispatcher.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/TaskDispatcher.java
index b40790deb..8b0676fbf 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/TaskDispatcher.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/scheduler/TaskDispatcher.java
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.common.state.TaskState;
-import edu.snu.nemo.runtime.master.PlanStateManager;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.common.state.TaskState;
+import org.apache.nemo.runtime.master.PlanStateManager;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 import org.apache.commons.lang3.mutable.MutableObject;
 import org.apache.reef.annotations.audience.DriverSide;
 
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/AllMetricServlet.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/AllMetricServlet.java
index 00a828e58..a8a7507a7 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/AllMetricServlet.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/AllMetricServlet.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.servlet;
+package org.apache.nemo.runtime.master.servlet;
 
-import edu.snu.nemo.runtime.master.MetricStore;
+import org.apache.nemo.runtime.master.MetricStore;
 
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/JobMetricServlet.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/JobMetricServlet.java
index 9a38d89eb..b2583fd4c 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/JobMetricServlet.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/JobMetricServlet.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.servlet;
+package org.apache.nemo.runtime.master.servlet;
 
-import edu.snu.nemo.runtime.master.MetricStore;
-import edu.snu.nemo.runtime.common.metric.JobMetric;
+import org.apache.nemo.runtime.master.MetricStore;
+import org.apache.nemo.runtime.common.metric.JobMetric;
 
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/StageMetricServlet.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/StageMetricServlet.java
index cb5860ae8..3a10176ea 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/StageMetricServlet.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/StageMetricServlet.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.servlet;
+package org.apache.nemo.runtime.master.servlet;
 
-import edu.snu.nemo.runtime.master.MetricStore;
-import edu.snu.nemo.runtime.common.metric.StageMetric;
+import org.apache.nemo.runtime.master.MetricStore;
+import org.apache.nemo.runtime.common.metric.StageMetric;
 
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/TaskMetricServlet.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/TaskMetricServlet.java
index 4e338fa7e..0f19c45b5 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/TaskMetricServlet.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/TaskMetricServlet.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.servlet;
+package org.apache.nemo.runtime.master.servlet;
 
-import edu.snu.nemo.runtime.master.MetricStore;
-import edu.snu.nemo.runtime.common.metric.TaskMetric;
+import org.apache.nemo.runtime.master.MetricStore;
+import org.apache.nemo.runtime.common.metric.TaskMetric;
 
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/WebSocketMetricAdapter.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/WebSocketMetricAdapter.java
index 6af2695fa..7a6865c17 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/WebSocketMetricAdapter.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/WebSocketMetricAdapter.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.servlet;
+package org.apache.nemo.runtime.master.servlet;
 
-import edu.snu.nemo.runtime.master.MetricBroadcaster;
+import org.apache.nemo.runtime.master.MetricBroadcaster;
 import org.eclipse.jetty.websocket.api.Session;
 import org.eclipse.jetty.websocket.api.StatusCode;
 import org.eclipse.jetty.websocket.api.WebSocketAdapter;
diff --git a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/WebSocketMetricServlet.java b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/WebSocketMetricServlet.java
index e164501c3..05a983c74 100644
--- a/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/WebSocketMetricServlet.java
+++ b/runtime/master/src/main/java/edu/snu/nemo/runtime/master/servlet/WebSocketMetricServlet.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.servlet;
+package org.apache.nemo.runtime.master.servlet;
 
 import org.eclipse.jetty.websocket.servlet.WebSocketServlet;
 import org.eclipse.jetty.websocket.servlet.WebSocketServletFactory;
diff --git a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/BlockManagerMasterTest.java b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/BlockManagerMasterTest.java
index 0b0a8326e..b723e68d4 100644
--- a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/BlockManagerMasterTest.java
+++ b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/BlockManagerMasterTest.java
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
-
-import edu.snu.nemo.common.ir.IdManager;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.exception.AbsentBlockException;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.local.LocalMessageDispatcher;
-import edu.snu.nemo.runtime.common.message.local.LocalMessageEnvironment;
-import edu.snu.nemo.runtime.common.state.BlockState;
+package org.apache.nemo.runtime.master;
+
+import org.apache.nemo.common.ir.IdManager;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.exception.AbsentBlockException;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.local.LocalMessageDispatcher;
+import org.apache.nemo.runtime.common.message.local.LocalMessageEnvironment;
+import org.apache.nemo.runtime.common.state.BlockState;
 import org.apache.reef.tang.Injector;
 import org.junit.Before;
 import org.junit.Test;
diff --git a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/ContainerManagerTest.java b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/ContainerManagerTest.java
index ac8a1c731..3e4b38ed8 100644
--- a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/ContainerManagerTest.java
+++ b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/ContainerManagerTest.java
@@ -13,14 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
-
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.master.resource.ContainerManager;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
-import edu.snu.nemo.runtime.master.resource.ResourceSpecification;
+package org.apache.nemo.runtime.master;
+
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.master.resource.ContainerManager;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.runtime.master.resource.ResourceSpecification;
 import org.apache.reef.driver.catalog.NodeDescriptor;
 import org.apache.reef.driver.context.ActiveContext;
 import org.apache.reef.driver.evaluator.AllocatedEvaluator;
@@ -44,7 +44,7 @@
 import static org.mockito.Mockito.when;
 
 /**
- * Tests {@link edu.snu.nemo.runtime.master.resource.ContainerManager}.
+ * Tests {@link org.apache.nemo.runtime.master.resource.ContainerManager}.
  */
 public final class ContainerManagerTest {
   private static final ResourceSpecification RESOURCE_SPEC_A =
diff --git a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/MetricStoreTest.java b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/MetricStoreTest.java
index 54c2028ad..66dd23916 100644
--- a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/MetricStoreTest.java
+++ b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/MetricStoreTest.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
+package org.apache.nemo.runtime.master;
 
 import com.fasterxml.jackson.core.TreeNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
-import edu.snu.nemo.runtime.common.metric.JobMetric;
+import org.apache.nemo.runtime.common.metric.JobMetric;
 import org.junit.Test;
 
 import java.io.IOException;
diff --git a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/PlanStateManagerTest.java b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/PlanStateManagerTest.java
index 32044177b..a6c2a3e4f 100644
--- a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/PlanStateManagerTest.java
+++ b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/PlanStateManagerTest.java
@@ -13,19 +13,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master;
+package org.apache.nemo.runtime.master;
 
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.local.LocalMessageDispatcher;
-import edu.snu.nemo.runtime.common.message.local.LocalMessageEnvironment;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.common.plan.Stage;
-import edu.snu.nemo.runtime.common.state.PlanState;
-import edu.snu.nemo.runtime.common.state.StageState;
-import edu.snu.nemo.runtime.common.state.TaskState;
-import edu.snu.nemo.runtime.common.plan.TestPlanGenerator;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.local.LocalMessageDispatcher;
+import org.apache.nemo.runtime.common.message.local.LocalMessageEnvironment;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.common.plan.Stage;
+import org.apache.nemo.runtime.common.state.PlanState;
+import org.apache.nemo.runtime.common.state.StageState;
+import org.apache.nemo.runtime.common.state.TaskState;
+import org.apache.nemo.runtime.common.plan.TestPlanGenerator;
 import org.apache.reef.tang.Injector;
 import org.junit.Before;
 import org.junit.Test;
diff --git a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/BatchSchedulerTest.java b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/BatchSchedulerTest.java
index 301ce2181..3021afa2a 100644
--- a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/BatchSchedulerTest.java
+++ b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/BatchSchedulerTest.java
@@ -13,25 +13,25 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
-
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
-import edu.snu.nemo.conf.JobConf;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageSender;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.common.plan.Stage;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
-import edu.snu.nemo.runtime.master.PlanStateManager;
-import edu.snu.nemo.runtime.master.MetricMessageHandler;
-import edu.snu.nemo.runtime.master.BlockManagerMaster;
-import edu.snu.nemo.runtime.master.eventhandler.UpdatePhysicalPlanEventHandler;
-import edu.snu.nemo.runtime.master.resource.ContainerManager;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
-import edu.snu.nemo.runtime.master.resource.ResourceSpecification;
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.runtime.common.plan.TestPlanGenerator;
+package org.apache.nemo.runtime.master.scheduler;
+
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.conf.JobConf;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageSender;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.common.plan.Stage;
+import org.apache.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.runtime.master.PlanStateManager;
+import org.apache.nemo.runtime.master.MetricMessageHandler;
+import org.apache.nemo.runtime.master.BlockManagerMaster;
+import org.apache.nemo.runtime.master.eventhandler.UpdatePhysicalPlanEventHandler;
+import org.apache.nemo.runtime.master.resource.ContainerManager;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.runtime.master.resource.ResourceSpecification;
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.runtime.common.plan.TestPlanGenerator;
 import org.apache.reef.driver.context.ActiveContext;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
diff --git a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/ContainerTypeAwareSchedulingConstraintTest.java b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/ContainerTypeAwareSchedulingConstraintTest.java
index 9e3f87c74..b1d71ed7c 100644
--- a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/ContainerTypeAwareSchedulingConstraintTest.java
+++ b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/ContainerTypeAwareSchedulingConstraintTest.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 import org.apache.reef.tang.Tang;
 import org.apache.reef.tang.exceptions.InjectionException;
 import org.junit.Test;
diff --git a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/FreeSlotSchedulingConstraintTest.java b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/FreeSlotSchedulingConstraintTest.java
index 215a93c4c..d33f33615 100644
--- a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/FreeSlotSchedulingConstraintTest.java
+++ b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/FreeSlotSchedulingConstraintTest.java
@@ -13,11 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceSlotProperty;
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceSlotProperty;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 import org.apache.reef.tang.Tang;
 import org.junit.Before;
 import org.junit.Test;
diff --git a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/LocalitySchedulingConstraintTest.java b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/LocalitySchedulingConstraintTest.java
index cabc21854..6a0375f99 100644
--- a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/LocalitySchedulingConstraintTest.java
+++ b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/LocalitySchedulingConstraintTest.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceLocalityProperty;
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.common.ir.Readable;
-import edu.snu.nemo.runtime.master.BlockManagerMaster;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceLocalityProperty;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.common.ir.Readable;
+import org.apache.nemo.runtime.master.BlockManagerMaster;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
 import org.apache.reef.tang.exceptions.InjectionException;
diff --git a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/MinOccupancyFirstSchedulingPolicyTest.java b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/MinOccupancyFirstSchedulingPolicyTest.java
index ca8d307f1..322151d18 100644
--- a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/MinOccupancyFirstSchedulingPolicyTest.java
+++ b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/MinOccupancyFirstSchedulingPolicyTest.java
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 import org.apache.reef.tang.Tang;
 import org.apache.reef.tang.exceptions.InjectionException;
 import org.junit.Test;
diff --git a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/PendingTaskCollectionPointerTest.java b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/PendingTaskCollectionPointerTest.java
index 469746c0a..b0ccdaad0 100644
--- a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/PendingTaskCollectionPointerTest.java
+++ b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/PendingTaskCollectionPointerTest.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.common.plan.Task;
 import org.apache.reef.tang.Tang;
 import org.apache.reef.tang.exceptions.InjectionException;
 import org.junit.Before;
diff --git a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/SchedulerTestUtil.java b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/SchedulerTestUtil.java
index 8c4edf6d1..d21b8fd39 100644
--- a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/SchedulerTestUtil.java
+++ b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/SchedulerTestUtil.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.runtime.common.plan.Stage;
-import edu.snu.nemo.runtime.common.state.StageState;
-import edu.snu.nemo.runtime.common.state.TaskState;
-import edu.snu.nemo.runtime.master.PlanStateManager;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.runtime.common.plan.Stage;
+import org.apache.nemo.runtime.common.state.StageState;
+import org.apache.nemo.runtime.common.state.TaskState;
+import org.apache.nemo.runtime.master.PlanStateManager;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 
 import java.util.Optional;
 
diff --git a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/SchedulingConstraintnRegistryTest.java b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/SchedulingConstraintnRegistryTest.java
index eabcac4d6..d2002304c 100644
--- a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/SchedulingConstraintnRegistryTest.java
+++ b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/SchedulingConstraintnRegistryTest.java
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.common.ir.executionproperty.VertexExecutionProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceSlotProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourceLocalityProperty;
-import edu.snu.nemo.runtime.master.BlockManagerMaster;
+import org.apache.nemo.common.ir.executionproperty.VertexExecutionProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceSlotProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourceLocalityProperty;
+import org.apache.nemo.runtime.master.BlockManagerMaster;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
 import org.apache.reef.tang.exceptions.InjectionException;
diff --git a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/SkewnessAwareSchedulingConstraintTest.java b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/SkewnessAwareSchedulingConstraintTest.java
index 85a1601e5..fd0f2666c 100644
--- a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/SkewnessAwareSchedulingConstraintTest.java
+++ b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/SkewnessAwareSchedulingConstraintTest.java
@@ -13,21 +13,21 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
+package org.apache.nemo.runtime.master.scheduler;
 
-import edu.snu.nemo.common.DataSkewMetricFactory;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataFlowProperty;
-import edu.snu.nemo.common.ir.edge.executionproperty.DataSkewMetricProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.common.HashRange;
-import edu.snu.nemo.common.KeyRange;
-import edu.snu.nemo.runtime.common.plan.Stage;
-import edu.snu.nemo.runtime.common.plan.StageEdge;
-import edu.snu.nemo.runtime.common.plan.Task;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.common.DataSkewMetricFactory;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataFlowProperty;
+import org.apache.nemo.common.ir.edge.executionproperty.DataSkewMetricProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.common.HashRange;
+import org.apache.nemo.common.KeyRange;
+import org.apache.nemo.runtime.common.plan.Stage;
+import org.apache.nemo.runtime.common.plan.StageEdge;
+import org.apache.nemo.runtime.common.plan.Task;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.powermock.core.classloader.annotations.PrepareForTest;
diff --git a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/TaskRetryTest.java b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/TaskRetryTest.java
index af3fe81d8..b8a2dcc4a 100644
--- a/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/TaskRetryTest.java
+++ b/runtime/master/src/test/java/edu/snu/nemo/runtime/master/scheduler/TaskRetryTest.java
@@ -13,26 +13,26 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.master.scheduler;
-import edu.snu.nemo.common.eventhandler.PubSubEventHandlerWrapper;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
-import edu.snu.nemo.runtime.common.RuntimeIdManager;
-import edu.snu.nemo.runtime.common.comm.ControlMessage;
-import edu.snu.nemo.runtime.common.message.MessageEnvironment;
-import edu.snu.nemo.runtime.common.message.MessageSender;
-import edu.snu.nemo.runtime.common.message.local.LocalMessageDispatcher;
-import edu.snu.nemo.runtime.common.message.local.LocalMessageEnvironment;
-import edu.snu.nemo.runtime.common.plan.PhysicalPlan;
-import edu.snu.nemo.runtime.common.state.BlockState;
-import edu.snu.nemo.runtime.common.state.PlanState;
-import edu.snu.nemo.runtime.common.state.TaskState;
-import edu.snu.nemo.runtime.master.BlockManagerMaster;
-import edu.snu.nemo.runtime.master.MetricMessageHandler;
-import edu.snu.nemo.runtime.master.PlanStateManager;
-import edu.snu.nemo.runtime.master.eventhandler.UpdatePhysicalPlanEventHandler;
-import edu.snu.nemo.runtime.master.resource.ExecutorRepresenter;
-import edu.snu.nemo.runtime.master.resource.ResourceSpecification;
-import edu.snu.nemo.runtime.common.plan.TestPlanGenerator;
+package org.apache.nemo.runtime.master.scheduler;
+import org.apache.nemo.common.eventhandler.PubSubEventHandlerWrapper;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.runtime.common.RuntimeIdManager;
+import org.apache.nemo.runtime.common.comm.ControlMessage;
+import org.apache.nemo.runtime.common.message.MessageEnvironment;
+import org.apache.nemo.runtime.common.message.MessageSender;
+import org.apache.nemo.runtime.common.message.local.LocalMessageDispatcher;
+import org.apache.nemo.runtime.common.message.local.LocalMessageEnvironment;
+import org.apache.nemo.runtime.common.plan.PhysicalPlan;
+import org.apache.nemo.runtime.common.state.BlockState;
+import org.apache.nemo.runtime.common.state.PlanState;
+import org.apache.nemo.runtime.common.state.TaskState;
+import org.apache.nemo.runtime.master.BlockManagerMaster;
+import org.apache.nemo.runtime.master.MetricMessageHandler;
+import org.apache.nemo.runtime.master.PlanStateManager;
+import org.apache.nemo.runtime.master.eventhandler.UpdatePhysicalPlanEventHandler;
+import org.apache.nemo.runtime.master.resource.ExecutorRepresenter;
+import org.apache.nemo.runtime.master.resource.ResourceSpecification;
+import org.apache.nemo.runtime.common.plan.TestPlanGenerator;
 import org.apache.reef.driver.context.ActiveContext;
 import org.apache.reef.tang.Injector;
 import org.junit.Before;
diff --git a/runtime/test/pom.xml b/runtime/test/pom.xml
index 96887fe75..7484f1f28 100644
--- a/runtime/test/pom.xml
+++ b/runtime/test/pom.xml
@@ -19,7 +19,7 @@ limitations under the License.
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
-        <groupId>edu.snu.nemo</groupId>
+        <groupId>org.apache.nemo</groupId>
         <artifactId>nemo-project</artifactId>
         <version>0.1-SNAPSHOT</version>
         <relativePath>../../</relativePath>
@@ -37,12 +37,12 @@ limitations under the License.
 
     <dependencies>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-runtime-common</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>edu.snu.nemo</groupId>
+            <groupId>org.apache.nemo</groupId>
             <artifactId>nemo-compiler-optimizer</artifactId>
             <version>${project.version}</version>
         </dependency>
diff --git a/runtime/test/src/main/java/edu/snu/nemo/runtime/common/plan/TestPlanGenerator.java b/runtime/test/src/main/java/edu/snu/nemo/runtime/common/plan/TestPlanGenerator.java
index 3b3646eb1..122eadc9b 100644
--- a/runtime/test/src/main/java/edu/snu/nemo/runtime/common/plan/TestPlanGenerator.java
+++ b/runtime/test/src/main/java/edu/snu/nemo/runtime/common/plan/TestPlanGenerator.java
@@ -13,22 +13,22 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.snu.nemo.runtime.common.plan;
-
-import edu.snu.nemo.common.dag.DAG;
-import edu.snu.nemo.common.dag.DAGBuilder;
-import edu.snu.nemo.common.ir.edge.IREdge;
-import edu.snu.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
-import edu.snu.nemo.common.ir.vertex.IRVertex;
-import edu.snu.nemo.common.ir.vertex.OperatorVertex;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
-import edu.snu.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
-import edu.snu.nemo.common.ir.vertex.transform.Transform;
-import edu.snu.nemo.common.test.EmptyComponents;
-import edu.snu.nemo.compiler.optimizer.policy.BasicPullPolicy;
-import edu.snu.nemo.compiler.optimizer.policy.BasicPushPolicy;
-import edu.snu.nemo.compiler.optimizer.policy.Policy;
-import edu.snu.nemo.conf.JobConf;
+package org.apache.nemo.runtime.common.plan;
+
+import org.apache.nemo.common.dag.DAG;
+import org.apache.nemo.common.dag.DAGBuilder;
+import org.apache.nemo.common.ir.edge.IREdge;
+import org.apache.nemo.common.ir.edge.executionproperty.CommunicationPatternProperty;
+import org.apache.nemo.common.ir.vertex.IRVertex;
+import org.apache.nemo.common.ir.vertex.OperatorVertex;
+import org.apache.nemo.common.ir.vertex.executionproperty.ResourcePriorityProperty;
+import org.apache.nemo.common.ir.vertex.executionproperty.ParallelismProperty;
+import org.apache.nemo.common.ir.vertex.transform.Transform;
+import org.apache.nemo.common.test.EmptyComponents;
+import org.apache.nemo.compiler.optimizer.policy.BasicPullPolicy;
+import org.apache.nemo.compiler.optimizer.policy.BasicPushPolicy;
+import org.apache.nemo.compiler.optimizer.policy.Policy;
+import org.apache.nemo.conf.JobConf;
 import org.apache.reef.tang.Injector;
 import org.apache.reef.tang.Tang;
 import org.apache.reef.tang.exceptions.InjectionException;


 

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