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Posted to commits@zeppelin.apache.org by zj...@apache.org on 2022/03/30 05:35:12 UTC

[zeppelin] branch master updated: [ZEPPELIN-5530] Support scala-2.13 for spark interpreter

This is an automated email from the ASF dual-hosted git repository.

zjffdu pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/zeppelin.git


The following commit(s) were added to refs/heads/master by this push:
     new c4c580a   [ZEPPELIN-5530] Support scala-2.13 for spark interpreter
c4c580a is described below

commit c4c580a37fde649553d336984a94bcb1b2821201
Author: Jeff Zhang <zj...@apache.org>
AuthorDate: Wed Mar 30 09:00:25 2022 +0800

     [ZEPPELIN-5530] Support scala-2.13 for spark interpreter
    
    ### What is this PR for?
    
    Spark 3.2 starts to support scala-2.13, this PR is to support scala-2.13 on the zeppelin side. A new module `scala-2.13` is introduced in this PR. `SparkILoop` is copied from the spark project with minor modification.
    
    ### What type of PR is it?
    [Feature]
    
    ### Todos
    * [ ] - Task
    
    ### What is the Jira issue?
    * https://issues.apache.org/jira/browse/ZEPPELIN-5530
    
    ### How should this be tested?
    * CI pass
    
    ### Screenshots (if appropriate)
    
    ### Questions:
    * Does the licenses files need update? No
    * Is there breaking changes for older versions? No
    * Does this needs documentation? No
    
    Author: Jeff Zhang <zj...@apache.org>
    
    Closes #4322 from zjffdu/ZEPPELIN-5530 and squashes the following commits:
    
    8836ae87b4 [Jeff Zhang] update workflow
    6470d3cda3 [Jeff Zhang] [ZEPPELIN-5530] Support scala 2.13 in spark interpreter
---
 .github/workflows/core.yml                         |  16 +-
 spark/interpreter/pom.xml                          | 110 ++++++++++++-
 .../spark/AbstractSparkScalaInterpreter.java       |   5 +
 .../zeppelin/spark/KotlinSparkInterpreter.java     |  37 ++---
 .../apache/zeppelin/spark/SparkInterpreter.java    |  20 +++
 .../apache/zeppelin/spark/SparkSqlInterpreter.java |   6 +-
 .../zeppelin/spark/SparkInterpreterTest.java       | 132 ++++++++-------
 spark/pom.xml                                      |  77 +--------
 .../zeppelin/spark/SparkScala211Interpreter.scala  |  73 ++++++++-
 .../zeppelin/spark/SparkScala212Interpreter.scala  |  70 +++++++-
 spark/scala-2.13/pom.xml                           |  59 +++++++
 spark/scala-2.13/spark-scala-parent                |   1 +
 .../scala-2.13/src/main/resources/log4j.properties |  50 ++++++
 .../org/apache/zeppelin/spark/SparkILoop.scala     |  87 ++++++++++
 .../zeppelin/spark/SparkScala213Interpreter.scala  | 179 +++++++++++++++++++++
 .../zeppelin/spark/BaseSparkScalaInterpreter.scala | 141 +++-------------
 zeppelin-interpreter-parent/pom.xml                |  12 +-
 zeppelin-jupyter-interpreter-shaded/pom.xml        |   8 +
 .../launcher/SparkInterpreterLauncher.java         |   7 +-
 19 files changed, 775 insertions(+), 315 deletions(-)

diff --git a/.github/workflows/core.yml b/.github/workflows/core.yml
index 578414e..d4d9b95 100644
--- a/.github/workflows/core.yml
+++ b/.github/workflows/core.yml
@@ -54,7 +54,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-zeppelin-
       - name: install application with some interpreter
-        run: ./mvnw install -Pbuild-distr -DskipRat -DskipTests -pl zeppelin-server,zeppelin-web,spark-submit,spark/scala-2.11,spark/scala-2.12,markdown,angular,shell -am -Phelium-dev -Pexamples -P${{ matrix.hadoop }} -B
+        run: ./mvnw install -Pbuild-distr -DskipRat -DskipTests -pl zeppelin-server,zeppelin-web,spark-submit,spark/scala-2.11,spark/scala-2.12,spark/scala-2.13,markdown,angular,shell -am -Phelium-dev -Pexamples -P${{ matrix.hadoop }} -B
       - name: install and test plugins
         run: ./mvnw package -DskipRat -pl zeppelin-plugins -amd -B
       - name: Setup conda environment with python 3.7 and R
@@ -74,7 +74,7 @@ jobs:
           conda list
           conda info
       - name: run tests with ${{ matrix.hadoop }} # skip spark test because we would run them in other CI
-        run: ./mvnw verify -Pusing-packaged-distr -DskipRat -pl zeppelin-server,zeppelin-web,spark-submit,spark/scala-2.11,spark/scala-2.12,markdown,angular,shell -am -Phelium-dev -Pexamples -P${{ matrix.hadoop }} -Dtests.to.exclude=**/org/apache/zeppelin/spark/* -DfailIfNoTests=false
+        run: ./mvnw verify -Pusing-packaged-distr -DskipRat -pl zeppelin-server,zeppelin-web,spark-submit,spark/scala-2.11,spark/scala-2.12,spark/scala-2.13,markdown,angular,shell -am -Phelium-dev -Pexamples -P${{ matrix.hadoop }} -Dtests.to.exclude=**/org/apache/zeppelin/spark/* -DfailIfNoTests=false
 
   # test interpreter modules except spark, flink, python, rlang, jupyter
   interpreter-test-non-core:
@@ -190,7 +190,7 @@ jobs:
             ${{ runner.os }}-zeppelin-
       - name: install environment
         run: |
-          ./mvnw install -DskipTests -DskipRat -Phadoop2 -Pintegration -pl zeppelin-interpreter-integration,zeppelin-web,spark-submit,spark/scala-2.11,spark/scala-2.12,markdown,flink-cmd,flink/flink-scala-2.11,flink/flink-scala-2.12,jdbc,shell -am
+          ./mvnw install -DskipTests -DskipRat -Phadoop2 -Pintegration -pl zeppelin-interpreter-integration,zeppelin-web,spark-submit,spark/scala-2.11,spark/scala-2.12,spark/scala-2.13,markdown,flink-cmd,flink/flink-scala-2.11,flink/flink-scala-2.12,jdbc,shell -am
           ./mvnw package -DskipRat -pl zeppelin-plugins -amd -DskipTests -B
       - name: Setup conda environment with python 3.7 and R
         uses: conda-incubator/setup-miniconda@v2
@@ -279,7 +279,7 @@ jobs:
             ${{ runner.os }}-zeppelin-
       - name: install environment
         run: |
-          ./mvnw install -DskipTests -DskipRat -pl zeppelin-interpreter-integration,zeppelin-web,spark-submit,spark/scala-2.11,spark/scala-2.12,markdown -am -Phadoop2 -Pintegration -B
+          ./mvnw install -DskipTests -DskipRat -pl zeppelin-interpreter-integration,zeppelin-web,spark-submit,spark/scala-2.11,spark/scala-2.12,spark/scala-2.13,markdown -am -Phadoop2 -Pintegration -B
           ./mvnw clean package -pl zeppelin-plugins -amd -DskipTests -B
       - name: Setup conda environment with python 3.7 and R
         uses: conda-incubator/setup-miniconda@v2
@@ -325,7 +325,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-zeppelin-
       - name: install environment
-        run: ./mvnw install -DskipTests -DskipRat -pl spark-submit,spark/scala-2.11,spark/scala-2.12 -am -Phadoop2 -B
+        run: ./mvnw install -DskipTests -DskipRat -pl spark-submit,spark/scala-2.11,spark/scala-2.12,spark/scala-2.13 -am -Phadoop2 -B
       - name: Setup conda environment with python ${{ matrix.python }} and R
         uses: conda-incubator/setup-miniconda@v2
         with:
@@ -359,7 +359,11 @@ jobs:
       - name: run spark-3.2 tests with scala-2.12 and python-${{ matrix.python }}
         run: |
           rm -rf spark/interpreter/metastore_db
-          ./mvnw test -DskipRat -pl spark-submit,spark/interpreter -Pspark-3.1 -Pspark-scala-2.12 -Phadoop2 -Pintegration -B -DfailIfNoTests=false
+          ./mvnw test -DskipRat -pl spark-submit,spark/interpreter -Pspark-3.2 -Pspark-scala-2.12 -Phadoop2 -Pintegration -B -DfailIfNoTests=false
+      - name: run spark-3.2 tests with scala-2.13 and python-${{ matrix.python }}
+        run: |
+          rm -rf spark/interpreter/metastore_db
+          ./mvnw test -DskipRat -pl spark-submit,spark/interpreter -Pspark-3.2 -Pspark-scala-2.13 -Phadoop2 -Pintegration -B -DfailIfNoTests=false
 
   livy-0-5-with-spark-2-2-0-under-python3:
     runs-on: ubuntu-20.04
diff --git a/spark/interpreter/pom.xml b/spark/interpreter/pom.xml
index 3a22650..e539f99 100644
--- a/spark/interpreter/pom.xml
+++ b/spark/interpreter/pom.xml
@@ -40,6 +40,25 @@
     <maven.aeither.provider.version>3.0.3</maven.aeither.provider.version>
     <wagon.version>2.7</wagon.version>
 
+    <datanucleus.rdbms.version>3.2.9</datanucleus.rdbms.version>
+    <datanucleus.apijdo.version>3.2.6</datanucleus.apijdo.version>
+    <datanucleus.core.version>3.2.10</datanucleus.core.version>
+
+    <!-- spark versions -->
+    <spark.version>3.1.2</spark.version>
+    <protobuf.version>2.5.0</protobuf.version>
+    <py4j.version>0.10.9</py4j.version>
+    <spark.scala.version>2.12.7</spark.scala.version>
+    <spark.scala.binary.version>2.12</spark.scala.binary.version>
+
+    <spark.archive>spark-${spark.version}</spark.archive>
+    <spark.src.download.url>
+      https://archive.apache.org/dist/spark/${spark.archive}/${spark.archive}.tgz
+    </spark.src.download.url>
+    <spark.bin.download.url>
+      https://archive.apache.org/dist/spark/${spark.archive}/${spark.archive}-bin-without-hadoop.tgz
+    </spark.bin.download.url>
+
     <scala.compile.version>${spark.scala.version}</scala.compile.version>
     <!-- settings -->
     <pyspark.test.exclude>**/PySparkInterpreterMatplotlibTest.java</pyspark.test.exclude>
@@ -270,13 +289,6 @@
 
     <!--test libraries-->
     <dependency>
-      <groupId>org.scalatest</groupId>
-      <artifactId>scalatest_${spark.scala.binary.version}</artifactId>
-      <version>${scalatest.version}</version>
-      <scope>test</scope>
-    </dependency>
-
-    <dependency>
       <groupId>org.datanucleus</groupId>
       <artifactId>datanucleus-core</artifactId>
       <version>${datanucleus.core.version}</version>
@@ -525,4 +537,88 @@
       </plugin>
     </plugins>
   </build>
+
+  <profiles>
+
+    <!-- profile spark-scala-x only affect the unit test in spark/interpreter module -->
+
+    <profile>
+      <id>spark-scala-2.13</id>
+      <properties>
+        <spark.scala.version>2.13.4</spark.scala.version>
+        <spark.scala.binary.version>2.13</spark.scala.binary.version>
+      </properties>
+    </profile>
+
+    <profile>
+      <id>spark-scala-2.12</id>
+      <activation>
+        <activeByDefault>true</activeByDefault>
+      </activation>
+      <properties>
+        <spark.scala.version>2.12.7</spark.scala.version>
+        <spark.scala.binary.version>2.12</spark.scala.binary.version>
+      </properties>
+    </profile>
+
+    <profile>
+      <id>spark-scala-2.11</id>
+      <properties>
+        <spark.scala.version>2.11.12</spark.scala.version>
+        <spark.scala.binary.version>2.11</spark.scala.binary.version>
+      </properties>
+    </profile>
+
+    <!-- profile spark-x only affect spark version used in test -->
+
+    <profile>
+      <id>spark-3.2</id>
+      <activation>
+        <activeByDefault>true</activeByDefault>
+      </activation>
+      <properties>
+        <datanucleus.core.version>4.1.17</datanucleus.core.version>
+        <datanucleus.rdbms.version>4.1.19</datanucleus.rdbms.version>
+        <datanucleus.apijdo.version>4.2.4</datanucleus.apijdo.version>
+        <spark.version>3.2.0</spark.version>
+        <protobuf.version>2.5.0</protobuf.version>
+        <py4j.version>0.10.9.2</py4j.version>
+      </properties>
+    </profile>
+
+    <profile>
+      <id>spark-3.1</id>
+      <properties>
+        <datanucleus.core.version>4.1.17</datanucleus.core.version>
+        <datanucleus.rdbms.version>4.1.19</datanucleus.rdbms.version>
+        <datanucleus.apijdo.version>4.2.4</datanucleus.apijdo.version>
+        <spark.version>3.1.2</spark.version>
+        <protobuf.version>2.5.0</protobuf.version>
+        <py4j.version>0.10.9</py4j.version>
+      </properties>
+    </profile>
+
+    <profile>
+      <id>spark-3.0</id>
+      <properties>
+        <datanucleus.core.version>4.1.17</datanucleus.core.version>
+        <datanucleus.rdbms.version>4.1.19</datanucleus.rdbms.version>
+        <datanucleus.apijdo.version>4.2.4</datanucleus.apijdo.version>
+        <spark.version>3.0.3</spark.version>
+        <protobuf.version>2.5.0</protobuf.version>
+        <py4j.version>0.10.9</py4j.version>
+      </properties>
+    </profile>
+
+    <profile>
+      <id>spark-2.4</id>
+      <properties>
+        <spark.version>2.4.5</spark.version>
+        <protobuf.version>2.5.0</protobuf.version>
+        <py4j.version>0.10.7</py4j.version>
+      </properties>
+    </profile>
+
+  </profiles>
+
 </project>
diff --git a/spark/interpreter/src/main/java/org/apache/zeppelin/spark/AbstractSparkScalaInterpreter.java b/spark/interpreter/src/main/java/org/apache/zeppelin/spark/AbstractSparkScalaInterpreter.java
index bf3abd8..71acd5e 100644
--- a/spark/interpreter/src/main/java/org/apache/zeppelin/spark/AbstractSparkScalaInterpreter.java
+++ b/spark/interpreter/src/main/java/org/apache/zeppelin/spark/AbstractSparkScalaInterpreter.java
@@ -25,6 +25,7 @@ import org.apache.zeppelin.interpreter.InterpreterContext;
 import org.apache.zeppelin.interpreter.InterpreterException;
 import org.apache.zeppelin.interpreter.InterpreterResult;
 import org.apache.zeppelin.interpreter.thrift.InterpreterCompletion;
+import org.apache.zeppelin.kotlin.KotlinInterpreter;
 
 import java.util.List;
 
@@ -65,6 +66,10 @@ public abstract class AbstractSparkScalaInterpreter {
 
   public abstract InterpreterResult interpret(String st, InterpreterContext context);
 
+  public abstract InterpreterResult delegateInterpret(KotlinInterpreter kotlinInterpreter,
+                                                      String st,
+                                                      InterpreterContext context);
+
   public abstract List<InterpreterCompletion> completion(String buf,
                                                          int cursor,
                                                          InterpreterContext interpreterContext);
diff --git a/spark/interpreter/src/main/java/org/apache/zeppelin/spark/KotlinSparkInterpreter.java b/spark/interpreter/src/main/java/org/apache/zeppelin/spark/KotlinSparkInterpreter.java
index 32de4b4..299f70b 100644
--- a/spark/interpreter/src/main/java/org/apache/zeppelin/spark/KotlinSparkInterpreter.java
+++ b/spark/interpreter/src/main/java/org/apache/zeppelin/spark/KotlinSparkInterpreter.java
@@ -17,17 +17,24 @@
 
 package org.apache.zeppelin.spark;
 
-import static org.apache.zeppelin.spark.Utils.buildJobDesc;
-import static org.apache.zeppelin.spark.Utils.buildJobGroupId;
 import org.apache.spark.SparkConf;
 import org.apache.spark.api.java.JavaSparkContext;
 import org.apache.spark.sql.SQLContext;
 import org.apache.spark.util.Utils;
+import org.apache.zeppelin.interpreter.Interpreter;
+import org.apache.zeppelin.interpreter.InterpreterContext;
+import org.apache.zeppelin.interpreter.InterpreterException;
+import org.apache.zeppelin.interpreter.InterpreterResult;
+import org.apache.zeppelin.interpreter.ZeppelinContext;
+import org.apache.zeppelin.interpreter.thrift.InterpreterCompletion;
+import org.apache.zeppelin.kotlin.KotlinInterpreter;
+import org.apache.zeppelin.spark.kotlin.KotlinZeppelinBindings;
+import org.apache.zeppelin.spark.kotlin.SparkKotlinReceiver;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+
 import java.io.File;
 import java.io.IOException;
-import java.io.PrintStream;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
@@ -35,17 +42,9 @@ import java.util.Properties;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
-import scala.Console;
-import org.apache.zeppelin.interpreter.ZeppelinContext;
-import org.apache.zeppelin.interpreter.Interpreter;
-import org.apache.zeppelin.interpreter.InterpreterContext;
-import org.apache.zeppelin.interpreter.InterpreterException;
-import org.apache.zeppelin.interpreter.InterpreterOutput;
-import org.apache.zeppelin.interpreter.InterpreterResult;
-import org.apache.zeppelin.interpreter.thrift.InterpreterCompletion;
-import org.apache.zeppelin.kotlin.KotlinInterpreter;
-import org.apache.zeppelin.spark.kotlin.KotlinZeppelinBindings;
-import org.apache.zeppelin.spark.kotlin.SparkKotlinReceiver;
+
+import static org.apache.zeppelin.spark.Utils.buildJobDesc;
+import static org.apache.zeppelin.spark.Utils.buildJobGroupId;
 
 public class KotlinSparkInterpreter extends Interpreter {
   private static Logger logger = LoggerFactory.getLogger(KotlinSparkInterpreter.class);
@@ -125,15 +124,7 @@ public class KotlinSparkInterpreter extends Interpreter {
     jsc.setJobGroup(buildJobGroupId(context), buildJobDesc(context), false);
     jsc.setLocalProperty("spark.scheduler.pool", context.getLocalProperties().get("pool"));
 
-    InterpreterOutput out = context.out;
-    PrintStream scalaOut = Console.out();
-    PrintStream newOut = (out != null) ? new PrintStream(out) : null;
-
-    Console.setOut(newOut);
-    InterpreterResult result = interpreter.interpret(st, context);
-    Console.setOut(scalaOut);
-
-    return result;
+    return sparkInterpreter.delegateInterpret(interpreter, st, context);
   }
 
   @Override
diff --git a/spark/interpreter/src/main/java/org/apache/zeppelin/spark/SparkInterpreter.java b/spark/interpreter/src/main/java/org/apache/zeppelin/spark/SparkInterpreter.java
index b13d67f..7701ebf 100644
--- a/spark/interpreter/src/main/java/org/apache/zeppelin/spark/SparkInterpreter.java
+++ b/spark/interpreter/src/main/java/org/apache/zeppelin/spark/SparkInterpreter.java
@@ -29,6 +29,7 @@ import org.apache.zeppelin.interpreter.InterpreterException;
 import org.apache.zeppelin.interpreter.InterpreterGroup;
 import org.apache.zeppelin.interpreter.InterpreterResult;
 import org.apache.zeppelin.interpreter.thrift.InterpreterCompletion;
+import org.apache.zeppelin.kotlin.KotlinInterpreter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -84,10 +85,12 @@ public class SparkInterpreter extends AbstractInterpreter {
     if (Boolean.parseBoolean(properties.getProperty("zeppelin.spark.scala.color", "true"))) {
       System.setProperty("scala.color", "true");
     }
+
     this.enableSupportedVersionCheck = java.lang.Boolean.parseBoolean(
         properties.getProperty("zeppelin.spark.enableSupportedVersionCheck", "true"));
     innerInterpreterClassMap.put("2.11", "org.apache.zeppelin.spark.SparkScala211Interpreter");
     innerInterpreterClassMap.put("2.12", "org.apache.zeppelin.spark.SparkScala212Interpreter");
+    innerInterpreterClassMap.put("2.13", "org.apache.zeppelin.spark.SparkScala213Interpreter");
   }
 
   @Override
@@ -145,6 +148,7 @@ public class SparkInterpreter extends AbstractInterpreter {
    *
    * SparkScala211Interpreter   ZEPPELIN_HOME/interpreter/spark/scala-2.11
    * SparkScala212Interpreter   ZEPPELIN_HOME/interpreter/spark/scala-2.12
+   * SparkScala213Interpreter   ZEPPELIN_HOME/interpreter/spark/scala-2.13
    *
    * @param conf
    * @return AbstractSparkScalaInterpreter
@@ -234,6 +238,12 @@ public class SparkInterpreter extends AbstractInterpreter {
     return this.innerInterpreter.getZeppelinContext();
   }
 
+  public InterpreterResult delegateInterpret(KotlinInterpreter kotlinInterpreter,
+                                             String code,
+                                             InterpreterContext context) {
+    return innerInterpreter.delegateInterpret(kotlinInterpreter, code, context);
+  }
+
   public SparkContext getSparkContext() {
     return this.sc;
   }
@@ -280,15 +290,25 @@ public class SparkInterpreter extends AbstractInterpreter {
       return "2.11";
     } else if (scalaVersionString.contains("2.12")) {
       return "2.12";
+    } else if (scalaVersionString.contains("2.13")) {
+      return "2.13";
     } else {
       throw new InterpreterException("Unsupported scala version: " + scalaVersionString);
     }
   }
 
+  public boolean isScala211() throws InterpreterException {
+    return scalaVersion.equals("2.11");
+  }
+
   public boolean isScala212() throws InterpreterException {
     return scalaVersion.equals("2.12");
   }
 
+  public boolean isScala213() {
+    return scalaVersion.equals("2.13");
+  }
+
   private List<String> getDependencyFiles() throws InterpreterException {
     List<String> depFiles = new ArrayList<>();
     // add jar from local repo
diff --git a/spark/interpreter/src/main/java/org/apache/zeppelin/spark/SparkSqlInterpreter.java b/spark/interpreter/src/main/java/org/apache/zeppelin/spark/SparkSqlInterpreter.java
index 6c06399..95e8bd7 100644
--- a/spark/interpreter/src/main/java/org/apache/zeppelin/spark/SparkSqlInterpreter.java
+++ b/spark/interpreter/src/main/java/org/apache/zeppelin/spark/SparkSqlInterpreter.java
@@ -95,9 +95,9 @@ public class SparkSqlInterpreter extends AbstractInterpreter {
     String curSql = null;
     ClassLoader originalClassLoader = Thread.currentThread().getContextClassLoader();
     try {
-      if (!sparkInterpreter.isScala212()) {
-        // TODO(zjffdu) scala 2.12 still doesn't work for codegen (ZEPPELIN-4627)
-      Thread.currentThread().setContextClassLoader(sparkInterpreter.getScalaShellClassLoader());
+      if (sparkInterpreter.isScala211()) {
+        // TODO(zjffdu) scala 2.12,2.13 still doesn't work for codegen (ZEPPELIN-4627)
+        Thread.currentThread().setContextClassLoader(sparkInterpreter.getScalaShellClassLoader());
       }
       Method method = sqlContext.getClass().getMethod("sql", String.class);
       for (String sql : sqls) {
diff --git a/spark/interpreter/src/test/java/org/apache/zeppelin/spark/SparkInterpreterTest.java b/spark/interpreter/src/test/java/org/apache/zeppelin/spark/SparkInterpreterTest.java
index 297b55d..d3a9622 100644
--- a/spark/interpreter/src/test/java/org/apache/zeppelin/spark/SparkInterpreterTest.java
+++ b/spark/interpreter/src/test/java/org/apache/zeppelin/spark/SparkInterpreterTest.java
@@ -90,7 +90,8 @@ public class SparkInterpreterTest {
 
     InterpreterResult result = interpreter.interpret("val a=\"hello world\"", getInterpreterContext());
     assertEquals(InterpreterResult.Code.SUCCESS, result.code());
-    assertEquals("a: String = hello world\n", output);
+    // Use contains instead of equals, because there's behavior difference between different scala versions
+    assertTrue(output, output.contains("a: String = hello world\n"));
 
     result = interpreter.interpret("print(a)", getInterpreterContext());
     assertEquals(InterpreterResult.Code.SUCCESS, result.code());
@@ -122,9 +123,12 @@ public class SparkInterpreterTest {
     result = interpreter.interpret("/*comment here*/\nprint(\"hello world\")", getInterpreterContext());
     assertEquals(InterpreterResult.Code.SUCCESS, result.code());
 
-    // multiple line comment
-    result = interpreter.interpret("/*line 1 \n line 2*/", getInterpreterContext());
-    assertEquals(InterpreterResult.Code.SUCCESS, result.code());
+    if (!interpreter.isScala213()) {
+      // multiple line comment, not supported by scala-2.13
+      context = getInterpreterContext();
+      result = interpreter.interpret("/*line 1 \n line 2*/", context);
+      assertEquals(context.out.toString(), InterpreterResult.Code.SUCCESS, result.code());
+    }
 
     // test function
     result = interpreter.interpret("def add(x:Int, y:Int)\n{ return x+y }", getInterpreterContext());
@@ -136,8 +140,11 @@ public class SparkInterpreterTest {
     result = interpreter.interpret("/*line 1 \n line 2*/print(\"hello world\")", getInterpreterContext());
     assertEquals(InterpreterResult.Code.SUCCESS, result.code());
 
-    result = interpreter.interpret("$intp", getInterpreterContext());
-    assertEquals(InterpreterResult.Code.SUCCESS, result.code());
+    if (!interpreter.isScala213()) {
+      // $intp not available for scala-2.13
+      result = interpreter.interpret("$intp", getInterpreterContext());
+      assertEquals(InterpreterResult.Code.SUCCESS, result.code());
+    }
     
     // Companion object with case class
     result = interpreter.interpret("import scala.math._\n" +
@@ -152,6 +159,11 @@ public class SparkInterpreterTest {
         "val circle1 = new Circle(5.0)", getInterpreterContext());
     assertEquals(InterpreterResult.Code.SUCCESS, result.code());
 
+    // use case class in spark
+    //    context = getInterpreterContext();
+    //    result = interpreter.interpret("sc\n.range(1, 10)\n.map(e=>Circle(e))\n.collect()", context);
+    //    assertEquals(context.out.toString(), InterpreterResult.Code.SUCCESS, result.code());
+
     // class extend
     result = interpreter.interpret("import java.util.ArrayList", getInterpreterContext());
     assertEquals(InterpreterResult.Code.SUCCESS, result.code());
@@ -162,7 +174,7 @@ public class SparkInterpreterTest {
     // spark rdd operation
     context = getInterpreterContext();
     context.setParagraphId("pid_1");
-    result = interpreter.interpret("sc\n.range(1, 10)\n.sum", context);
+    result = interpreter.interpret("sc\n.range(1, 10)\n.map(e=>e)\n.sum", context);
     assertEquals(InterpreterResult.Code.SUCCESS, result.code());
     assertTrue(output.contains("45"));
     ArgumentCaptor<Map> captorEvent = ArgumentCaptor.forClass(Map.class);
@@ -207,46 +219,29 @@ public class SparkInterpreterTest {
 
     // spark sql test
     String version = output.trim();
-    if (version.contains("String = 1.")) {
-      result = interpreter.interpret("sqlContext", getInterpreterContext());
-      assertEquals(InterpreterResult.Code.SUCCESS, result.code());
-
-      result = interpreter.interpret(
-          "val df = sqlContext.createDataFrame(Seq((1,\"a\"),(2, null)))\n" +
-              "df.show()", getInterpreterContext());
-      assertEquals(InterpreterResult.Code.SUCCESS, result.code());
-      assertTrue(output.contains(
-          "+---+----+\n" +
-              "| _1|  _2|\n" +
-              "+---+----+\n" +
-              "|  1|   a|\n" +
-              "|  2|null|\n" +
-              "+---+----+"));
-    } else {
-      // create dataset from case class
-      context = getInterpreterContext();
-      result = interpreter.interpret("case class Person(id:Int, name:String, age:Int, country:String)\n" +
-              "val df2 = spark.createDataFrame(Seq(Person(1, \"andy\", 20, \"USA\"), " +
-              "Person(2, \"jeff\", 23, \"China\"), Person(3, \"james\", 18, \"USA\")))\n" +
-              "df2.printSchema\n" +
-              "df2.show() ", context);
-      assertEquals(InterpreterResult.Code.SUCCESS, result.code());
+    // create dataset from case class
+    context = getInterpreterContext();
+    result = interpreter.interpret("case class Person(id:Int, name:String, age:Int, country:String)\n" +
+            "val df2 = spark.createDataFrame(Seq(Person(1, \"andy\", 20, \"USA\"), " +
+            "Person(2, \"jeff\", 23, \"China\"), Person(3, \"james\", 18, \"USA\")))\n" +
+            "df2.printSchema\n" +
+            "df2.show() ", context);
+    assertEquals(InterpreterResult.Code.SUCCESS, result.code());
 
-      result = interpreter.interpret("spark", getInterpreterContext());
-      assertEquals(InterpreterResult.Code.SUCCESS, result.code());
+    result = interpreter.interpret("spark", getInterpreterContext());
+    assertEquals(InterpreterResult.Code.SUCCESS, result.code());
 
-      result = interpreter.interpret(
-          "val df = spark.createDataFrame(Seq((1,\"a\"),(2, null)))\n" +
-              "df.show()", getInterpreterContext());
-      assertEquals(InterpreterResult.Code.SUCCESS, result.code());
-      assertTrue(output.contains(
-          "+---+----+\n" +
-              "| _1|  _2|\n" +
-              "+---+----+\n" +
-              "|  1|   a|\n" +
-              "|  2|null|\n" +
-              "+---+----+"));
-    }
+    result = interpreter.interpret(
+        "val df = spark.createDataFrame(Seq((1,\"a\"),(2, null)))\n" +
+            "df.show()", getInterpreterContext());
+    assertEquals(InterpreterResult.Code.SUCCESS, result.code());
+    assertTrue(output.contains(
+        "+---+----+\n" +
+        "| _1|  _2|\n" +
+        "+---+----+\n" +
+        "|  1|   a|\n" +
+        "|  2|null|\n" +
+        "+---+----+"));
 
     // ZeppelinContext
     context = getInterpreterContext();
@@ -303,7 +298,6 @@ public class SparkInterpreterTest {
     assertEquals("value_2", select.getOptions()[1].getValue());
     assertEquals("name_2", select.getOptions()[1].getDisplayName());
 
-
     // completions
     List<InterpreterCompletion> completions = interpreter.completion("a.", 2, getInterpreterContext());
     assertTrue(completions.size() > 0);
@@ -321,26 +315,29 @@ public class SparkInterpreterTest {
     assertEquals(1, completions.size());
     assertEquals("range", completions.get(0).name);
 
-    // Zeppelin-Display
-    result = interpreter.interpret("import org.apache.zeppelin.display.angular.notebookscope._\n" +
-        "import AngularElem._", getInterpreterContext());
-    assertEquals(InterpreterResult.Code.SUCCESS, result.code());
-
-    result = interpreter.interpret("<div style=\"color:blue\">\n" +
-        "<h4>Hello Angular Display System</h4>\n" +
-        "</div>.display", getInterpreterContext());
-    assertEquals(InterpreterResult.Code.SUCCESS, result.code());
-    assertEquals(InterpreterResult.Type.ANGULAR, messageOutput.getType());
-    assertTrue(messageOutput.toInterpreterResultMessage().getData().contains("Hello Angular Display System"));
+    if (!interpreter.isScala213()) {
+      // Zeppelin-Display
+      result = interpreter.interpret("import org.apache.zeppelin.display.angular.notebookscope._\n" +
+              "import AngularElem._", getInterpreterContext());
+      assertEquals(InterpreterResult.Code.SUCCESS, result.code());
 
-    result = interpreter.interpret("<div class=\"btn btn-success\">\n" +
-        "  Click me\n" +
-        "</div>.onClick{() =>\n" +
-        "  println(\"hello world\")\n" +
-        "}.display", getInterpreterContext());
-    assertEquals(InterpreterResult.Code.SUCCESS, result.code());
-    assertEquals(InterpreterResult.Type.ANGULAR, messageOutput.getType());
-    assertTrue(messageOutput.toInterpreterResultMessage().getData().contains("Click me"));
+      context = getInterpreterContext();
+      result = interpreter.interpret("<div style=\"color:blue\">\n" +
+              "<h4>Hello Angular Display System</h4>\n" +
+              "</div>.display", context);
+      assertEquals(context.out.toString(), InterpreterResult.Code.SUCCESS, result.code());
+      assertEquals(InterpreterResult.Type.ANGULAR, messageOutput.getType());
+      assertTrue(messageOutput.toInterpreterResultMessage().getData().contains("Hello Angular Display System"));
+
+      result = interpreter.interpret("<div class=\"btn btn-success\">\n" +
+              "  Click me\n" +
+              "</div>.onClick{() =>\n" +
+              "  println(\"hello world\")\n" +
+              "}.display", getInterpreterContext());
+      assertEquals(InterpreterResult.Code.SUCCESS, result.code());
+      assertEquals(InterpreterResult.Type.ANGULAR, messageOutput.getType());
+      assertTrue(messageOutput.toInterpreterResultMessage().getData().contains("Click me"));
+    }
 
     // getProgress
     final InterpreterContext context2 = getInterpreterContext();
@@ -439,7 +436,8 @@ public class SparkInterpreterTest {
 
     InterpreterResult result = interpreter.interpret("val a=\"hello world\"", getInterpreterContext());
     assertEquals(InterpreterResult.Code.SUCCESS, result.code());
-    assertEquals("a: String = hello world\n", output);
+    // Use contains instead of equals, because there's behavior different between different scala versions
+    assertTrue(output, output.contains("a: String = hello world\n"));
 
     result = interpreter.interpret("print(a)", getInterpreterContext());
     assertEquals(InterpreterResult.Code.SUCCESS, result.code());
@@ -457,7 +455,7 @@ public class SparkInterpreterTest {
     // REPL output get back if we don't set printREPLOutput in paragraph local properties
     result = interpreter.interpret("val a=\"hello world\"", getInterpreterContext());
     assertEquals(InterpreterResult.Code.SUCCESS, result.code());
-    assertEquals("a: String = hello world\n", output);
+    assertTrue(output, output.contains("a: String = hello world\n"));
 
     result = interpreter.interpret("print(a)", getInterpreterContext());
     assertEquals(InterpreterResult.Code.SUCCESS, result.code());
diff --git a/spark/pom.xml b/spark/pom.xml
index f73c87b..43241f3 100644
--- a/spark/pom.xml
+++ b/spark/pom.xml
@@ -33,7 +33,6 @@
     <description>Zeppelin Spark Support</description>
 
     <properties>
-        <!--library versions-->
         <datanucleus.rdbms.version>3.2.9</datanucleus.rdbms.version>
         <datanucleus.apijdo.version>3.2.6</datanucleus.apijdo.version>
         <datanucleus.core.version>3.2.10</datanucleus.core.version>
@@ -45,6 +44,8 @@
         <spark.scala.version>2.12.7</spark.scala.version>
         <spark.scala.binary.version>2.12</spark.scala.binary.version>
 
+        <scala.compile.version>${spark.scala.version}</scala.compile.version>
+
         <spark.archive>spark-${spark.version}</spark.archive>
         <spark.src.download.url>
             https://archive.apache.org/dist/spark/${spark.archive}/${spark.archive}.tgz
@@ -59,6 +60,7 @@
         <module>spark-scala-parent</module>
         <module>scala-2.11</module>
         <module>scala-2.12</module>
+        <module>scala-2.13</module>
         <module>spark-shims</module>
         <module>spark2-shims</module>
         <module>spark3-shims</module>
@@ -131,78 +133,5 @@
         </plugins>
     </build>
 
-    <profiles>
-
-        <!-- profile spark-scala-x only affect the unit test in spark/interpreter module -->
-
-        <profile>
-            <id>spark-scala-2.12</id>
-            <activation>
-                <activeByDefault>true</activeByDefault>
-            </activation>
-            <properties>
-                <spark.scala.version>2.12.7</spark.scala.version>
-                <spark.scala.binary.version>2.12</spark.scala.binary.version>
-            </properties>
-        </profile>
-
-        <profile>
-            <id>spark-scala-2.11</id>
-            <properties>
-                <spark.scala.version>2.11.12</spark.scala.version>
-                <spark.scala.binary.version>2.11</spark.scala.binary.version>
-            </properties>
-        </profile>
-
-        <!-- profile spark-x only affect the embedded spark version in zeppelin distribution -->
-
-        <profile>
-            <id>spark-3.2</id>
-            <activation>
-                <activeByDefault>true</activeByDefault>
-            </activation>
-            <properties>
-                <datanucleus.core.version>4.1.17</datanucleus.core.version>
-                <datanucleus.rdbms.version>4.1.19</datanucleus.rdbms.version>
-                <datanucleus.apijdo.version>4.2.4</datanucleus.apijdo.version>
-                <spark.version>3.2.0</spark.version>
-                <protobuf.version>2.5.0</protobuf.version>
-                <py4j.version>0.10.9.2</py4j.version>
-            </properties>
-        </profile>
-
-        <profile>
-            <id>spark-3.1</id>
-            <properties>
-                <datanucleus.core.version>4.1.17</datanucleus.core.version>
-                <datanucleus.rdbms.version>4.1.19</datanucleus.rdbms.version>
-                <datanucleus.apijdo.version>4.2.4</datanucleus.apijdo.version>
-                <spark.version>3.1.2</spark.version>
-                <protobuf.version>2.5.0</protobuf.version>
-                <py4j.version>0.10.9</py4j.version>
-            </properties>
-        </profile>
-
-        <profile>
-            <id>spark-3.0</id>
-            <properties>
-                <datanucleus.core.version>4.1.17</datanucleus.core.version>
-                <datanucleus.rdbms.version>4.1.19</datanucleus.rdbms.version>
-                <datanucleus.apijdo.version>4.2.4</datanucleus.apijdo.version>
-                <spark.version>3.0.3</spark.version>
-                <protobuf.version>2.5.0</protobuf.version>
-                <py4j.version>0.10.9</py4j.version>
-            </properties>
-        </profile>
-
-        <profile>
-            <id>spark-2.4</id>
-            <properties>
-                <spark.version>2.4.5</spark.version>
-                <protobuf.version>2.5.0</protobuf.version>
-                <py4j.version>0.10.7</py4j.version>
-            </properties>
-        </profile>
 
-    </profiles>
 </project>
diff --git a/spark/scala-2.11/src/main/scala/org/apache/zeppelin/spark/SparkScala211Interpreter.scala b/spark/scala-2.11/src/main/scala/org/apache/zeppelin/spark/SparkScala211Interpreter.scala
index d1a3b08..013cab4 100644
--- a/spark/scala-2.11/src/main/scala/org/apache/zeppelin/spark/SparkScala211Interpreter.scala
+++ b/spark/scala-2.11/src/main/scala/org/apache/zeppelin/spark/SparkScala211Interpreter.scala
@@ -21,12 +21,11 @@ import java.io.{BufferedReader, File}
 import java.net.URLClassLoader
 import java.nio.file.{Files, Paths}
 import java.util.Properties
-
 import org.apache.spark.SparkConf
 import org.apache.spark.repl.SparkILoop
 import org.apache.zeppelin.interpreter.thrift.InterpreterCompletion
 import org.apache.zeppelin.interpreter.util.InterpreterOutputStream
-import org.apache.zeppelin.interpreter.{InterpreterContext, InterpreterGroup}
+import org.apache.zeppelin.interpreter.{InterpreterContext, InterpreterGroup, InterpreterResult}
 import org.slf4j.LoggerFactory
 import org.slf4j.Logger
 
@@ -50,6 +49,8 @@ class SparkScala211Interpreter(override val conf: SparkConf,
 
   private var sparkILoop: SparkILoop = _
 
+  private var scalaCompletion: Completion = _
+
   override val interpreterOutput = new InterpreterOutputStream(LOGGER)
 
   override def open(): Unit = {
@@ -60,12 +61,7 @@ class SparkScala211Interpreter(override val conf: SparkConf,
 
     LOGGER.info("Scala shell repl output dir: " + outputDir.getAbsolutePath)
     conf.set("spark.repl.class.outputDir", outputDir.getAbsolutePath)
-    startHttpServer(outputDir).foreach { case (server, uri) =>
-      sparkHttpServer = server
-      conf.set("spark.repl.class.uri", uri)
-    }
     val target = conf.get("spark.repl.target", "jvm-1.6")
-
     val settings = new Settings()
     settings.processArguments(List("-Yrepl-class-based",
       "-Yrepl-outdir", s"${outputDir.getAbsolutePath}"), true)
@@ -96,9 +92,72 @@ class SparkScala211Interpreter(override val conf: SparkConf,
     this.scalaCompletion = reader.completion
 
     createSparkContext()
+    scalaInterpret("import org.apache.spark.SparkContext._")
+    scalaInterpret("import spark.implicits._")
+    scalaInterpret("import spark.sql")
+    scalaInterpret("import org.apache.spark.sql.functions._")
+    // print empty string otherwise the last statement's output of this method
+    // (aka. import org.apache.spark.sql.functions._) will mix with the output of user code
+    scalaInterpret("print(\"\")")
     createZeppelinContext()
   }
 
+  def interpret(code: String, context: InterpreterContext): InterpreterResult = {
+
+    val originalOut = System.out
+    val printREPLOutput = context.getStringLocalProperty("printREPLOutput", "true").toBoolean
+
+    def _interpret(code: String): scala.tools.nsc.interpreter.Results.Result = {
+      Console.withOut(interpreterOutput) {
+        System.setOut(Console.out)
+        if (printREPLOutput) {
+          interpreterOutput.setInterpreterOutput(context.out)
+        } else {
+          interpreterOutput.setInterpreterOutput(null)
+        }
+        interpreterOutput.ignoreLeadingNewLinesFromScalaReporter()
+
+        val status = scalaInterpret(code) match {
+          case success@scala.tools.nsc.interpreter.IR.Success =>
+            success
+          case scala.tools.nsc.interpreter.IR.Error =>
+            val errorMsg = new String(interpreterOutput.getInterpreterOutput.toByteArray)
+            if (errorMsg.contains("value toDF is not a member of org.apache.spark.rdd.RDD") ||
+              errorMsg.contains("value toDS is not a member of org.apache.spark.rdd.RDD")) {
+              // prepend "import sqlContext.implicits._" due to
+              // https://issues.scala-lang.org/browse/SI-6649
+              context.out.clear()
+              scalaInterpret("import sqlContext.implicits._\n" + code)
+            } else {
+              scala.tools.nsc.interpreter.IR.Error
+            }
+          case scala.tools.nsc.interpreter.IR.Incomplete =>
+            // add print("") at the end in case the last line is comment which lead to INCOMPLETE
+            scalaInterpret(code + "\nprint(\"\")")
+        }
+        context.out.flush()
+        status
+      }
+    }
+    // reset the java stdout
+    System.setOut(originalOut)
+
+    context.out.write("")
+    val lastStatus = _interpret(code) match {
+      case scala.tools.nsc.interpreter.IR.Success =>
+        InterpreterResult.Code.SUCCESS
+      case scala.tools.nsc.interpreter.IR.Error =>
+        InterpreterResult.Code.ERROR
+      case scala.tools.nsc.interpreter.IR.Incomplete =>
+        InterpreterResult.Code.INCOMPLETE
+    }
+
+    lastStatus match {
+      case InterpreterResult.Code.INCOMPLETE => new InterpreterResult( lastStatus, "Incomplete expression" )
+      case _ => new InterpreterResult(lastStatus)
+    }
+  }
+
   protected override def completion(buf: String,
                                     cursor: Int,
                                     context: InterpreterContext): java.util.List[InterpreterCompletion] = {
diff --git a/spark/scala-2.12/src/main/scala/org/apache/zeppelin/spark/SparkScala212Interpreter.scala b/spark/scala-2.12/src/main/scala/org/apache/zeppelin/spark/SparkScala212Interpreter.scala
index 4918e4b..80c66c2 100644
--- a/spark/scala-2.12/src/main/scala/org/apache/zeppelin/spark/SparkScala212Interpreter.scala
+++ b/spark/scala-2.12/src/main/scala/org/apache/zeppelin/spark/SparkScala212Interpreter.scala
@@ -21,12 +21,11 @@ import java.io.{BufferedReader, File}
 import java.net.URLClassLoader
 import java.nio.file.{Files, Paths}
 import java.util.Properties
-
 import org.apache.spark.SparkConf
 import org.apache.spark.repl.SparkILoop
 import org.apache.zeppelin.interpreter.thrift.InterpreterCompletion
 import org.apache.zeppelin.interpreter.util.InterpreterOutputStream
-import org.apache.zeppelin.interpreter.{InterpreterContext, InterpreterGroup}
+import org.apache.zeppelin.interpreter.{InterpreterContext, InterpreterGroup, InterpreterResult}
 import org.slf4j.LoggerFactory
 import org.slf4j.Logger
 
@@ -48,6 +47,8 @@ class SparkScala212Interpreter(override val conf: SparkConf,
 
   private var sparkILoop: SparkILoop = _
 
+  private var scalaCompletion: Completion = _
+
   override val interpreterOutput = new InterpreterOutputStream(LOGGER)
 
   override def open(): Unit = {
@@ -86,9 +87,74 @@ class SparkScala212Interpreter(override val conf: SparkConf,
     this.scalaCompletion = reader.completion
 
     createSparkContext()
+
+    scalaInterpret("import org.apache.spark.SparkContext._")
+    scalaInterpret("import spark.implicits._")
+    scalaInterpret("import spark.sql")
+    scalaInterpret("import org.apache.spark.sql.functions._")
+    // print empty string otherwise the last statement's output of this method
+    // (aka. import org.apache.spark.sql.functions._) will mix with the output of user code
+    scalaInterpret("print(\"\")")
+
     createZeppelinContext()
   }
 
+  def interpret(code: String, context: InterpreterContext): InterpreterResult = {
+
+    val originalOut = System.out
+    val printREPLOutput = context.getStringLocalProperty("printREPLOutput", "true").toBoolean
+
+    def _interpret(code: String): scala.tools.nsc.interpreter.Results.Result = {
+      Console.withOut(interpreterOutput) {
+        System.setOut(Console.out)
+        if (printREPLOutput) {
+          interpreterOutput.setInterpreterOutput(context.out)
+        } else {
+          interpreterOutput.setInterpreterOutput(null)
+        }
+        interpreterOutput.ignoreLeadingNewLinesFromScalaReporter()
+
+        val status = scalaInterpret(code) match {
+          case success@scala.tools.nsc.interpreter.IR.Success =>
+            success
+          case scala.tools.nsc.interpreter.IR.Error =>
+            val errorMsg = new String(interpreterOutput.getInterpreterOutput.toByteArray)
+            if (errorMsg.contains("value toDF is not a member of org.apache.spark.rdd.RDD") ||
+              errorMsg.contains("value toDS is not a member of org.apache.spark.rdd.RDD")) {
+              // prepend "import sqlContext.implicits._" due to
+              // https://issues.scala-lang.org/browse/SI-6649
+              context.out.clear()
+              scalaInterpret("import sqlContext.implicits._\n" + code)
+            } else {
+              scala.tools.nsc.interpreter.IR.Error
+            }
+          case scala.tools.nsc.interpreter.IR.Incomplete =>
+            // add print("") at the end in case the last line is comment which lead to INCOMPLETE
+            scalaInterpret(code + "\nprint(\"\")")
+        }
+        context.out.flush()
+        status
+      }
+    }
+    // reset the java stdout
+    System.setOut(originalOut)
+
+    context.out.write("")
+    val lastStatus = _interpret(code) match {
+      case scala.tools.nsc.interpreter.IR.Success =>
+        InterpreterResult.Code.SUCCESS
+      case scala.tools.nsc.interpreter.IR.Error =>
+        InterpreterResult.Code.ERROR
+      case scala.tools.nsc.interpreter.IR.Incomplete =>
+        InterpreterResult.Code.INCOMPLETE
+    }
+
+    lastStatus match {
+      case InterpreterResult.Code.INCOMPLETE => new InterpreterResult( lastStatus, "Incomplete expression" )
+      case _ => new InterpreterResult(lastStatus)
+    }
+  }
+
   protected override def completion(buf: String,
                            cursor: Int,
                            context: InterpreterContext): java.util.List[InterpreterCompletion] = {
diff --git a/spark/scala-2.13/pom.xml b/spark/scala-2.13/pom.xml
new file mode 100644
index 0000000..c8f3bbc
--- /dev/null
+++ b/spark/scala-2.13/pom.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one or more
+  ~ contributor license agreements.  See the NOTICE file distributed with
+  ~ this work for additional information regarding copyright ownership.
+  ~ The ASF licenses this file to You under the Apache License, Version 2.0
+  ~ (the "License"); you may not use this file except in compliance with
+  ~ the License.  You may obtain a copy of the License at
+  ~
+  ~    http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         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>org.apache.zeppelin</groupId>
+    <artifactId>spark-scala-parent</artifactId>
+    <version>0.11.0-SNAPSHOT</version>
+    <relativePath>../spark-scala-parent/pom.xml</relativePath>
+  </parent>
+
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>spark-scala-2.13</artifactId>
+  <packaging>jar</packaging>
+  <name>Zeppelin: Spark Interpreter Scala_2.13</name>
+
+  <properties>
+    <spark.version>3.2.0</spark.version>
+    <spark.scala.version>2.13.4</spark.scala.version>
+    <spark.scala.binary.version>2.13</spark.scala.binary.version>
+    <spark.scala.compile.version>${spark.scala.version}</spark.scala.compile.version>
+  </properties>
+
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-resources-plugin</artifactId>
+      </plugin>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>build-helper-maven-plugin</artifactId>
+      </plugin>
+      <plugin>
+        <groupId>net.alchim31.maven</groupId>
+        <artifactId>scala-maven-plugin</artifactId>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jar-plugin</artifactId>
+      </plugin>
+    </plugins>
+  </build>
+</project>
diff --git a/spark/scala-2.13/spark-scala-parent b/spark/scala-2.13/spark-scala-parent
new file mode 120000
index 0000000..e5e899e
--- /dev/null
+++ b/spark/scala-2.13/spark-scala-parent
@@ -0,0 +1 @@
+../spark-scala-parent
\ No newline at end of file
diff --git a/spark/scala-2.13/src/main/resources/log4j.properties b/spark/scala-2.13/src/main/resources/log4j.properties
new file mode 100644
index 0000000..0c90b21
--- /dev/null
+++ b/spark/scala-2.13/src/main/resources/log4j.properties
@@ -0,0 +1,50 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Direct log messages to stdout
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.Target=System.out
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c:%L - %m%n
+#log4j.appender.stdout.layout.ConversionPattern=
+#%5p [%t] (%F:%L) - %m%n
+#%-4r [%t] %-5p %c %x - %m%n
+#
+
+# Root logger option
+log4j.rootLogger=INFO, stdout
+ 
+#mute some noisy guys
+log4j.logger.org.apache.hadoop.mapred=WARN
+log4j.logger.org.apache.hadoop.hive.ql=WARN
+log4j.logger.org.apache.hadoop.hive.metastore=WARN
+log4j.logger.org.apache.haadoop.hive.service.HiveServer=WARN
+log4j.logger.org.apache.zeppelin.scheduler=WARN
+
+log4j.logger.org.quartz=WARN
+log4j.logger.DataNucleus=WARN
+log4j.logger.DataNucleus.MetaData=ERROR
+log4j.logger.DataNucleus.Datastore=ERROR
+
+# Log all JDBC parameters
+log4j.logger.org.hibernate.type=ALL
+
+log4j.logger.org.apache.zeppelin.interpreter=DEBUG
+log4j.logger.org.apache.zeppelin.spark=DEBUG
+
+
+log4j.logger.org.apache.spark.repl.Main=INFO
diff --git a/spark/scala-2.13/src/main/scala/org/apache/zeppelin/spark/SparkILoop.scala b/spark/scala-2.13/src/main/scala/org/apache/zeppelin/spark/SparkILoop.scala
new file mode 100644
index 0000000..71f93a9
--- /dev/null
+++ b/spark/scala-2.13/src/main/scala/org/apache/zeppelin/spark/SparkILoop.scala
@@ -0,0 +1,87 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.zeppelin.spark
+
+import java.io.{BufferedReader, PrintWriter}
+
+import scala.Predef.{println => _, _}
+import scala.tools.nsc.GenericRunnerSettings
+import scala.tools.nsc.Settings
+import scala.tools.nsc.interpreter.shell.{ILoop, ShellConfig}
+import scala.tools.nsc.util.stringFromStream
+import scala.util.Properties.{javaVersion, javaVmName, versionString}
+
+/**
+ *  Copy from spark project with minor modification (Remove the SparkContext initialization)
+ */
+class SparkILoop(in0: BufferedReader, out: PrintWriter)
+  extends ILoop(ShellConfig(new GenericRunnerSettings(_ => ())), in0, out) {
+  def this() = this(null, new PrintWriter(Console.out, true))
+
+  override protected def internalReplAutorunCode(): Seq[String] = Seq.empty
+
+  /** Print a welcome message */
+  override def printWelcome(): Unit = {
+    import org.apache.spark.SPARK_VERSION
+    echo("""Welcome to
+      ____              __
+     / __/__  ___ _____/ /__
+    _\ \/ _ \/ _ `/ __/  '_/
+   /___/ .__/\_,_/_/ /_/\_\   version %s
+      /_/
+         """.format(SPARK_VERSION))
+    val welcomeMsg = "Using Scala %s (%s, Java %s)".format(
+      versionString,
+      javaVmName,
+      javaVersion
+    )
+    echo(welcomeMsg)
+    echo("Type in expressions to have them evaluated.")
+    echo("Type :help for more information.")
+  }
+
+  /** Available commands */
+  override def commands: List[LoopCommand] = standardCommands
+
+  override def resetCommand(line: String): Unit = {
+    super.resetCommand(line)
+    echo(
+      "Note that after :reset, state of SparkSession and SparkContext is unchanged."
+    )
+  }
+
+  override def replay(): Unit = {
+    super.replay()
+  }
+
+  /** Start an interpreter with the given settings.
+   *  @return true if successful
+   */
+  override def run(interpreterSettings: Settings): Boolean = {
+    createInterpreter(interpreterSettings)
+    intp.reporter.withoutPrintingResults(intp.withSuppressedSettings {
+      intp.initializeCompiler()
+      if (intp.reporter.hasErrors) {
+        echo("Interpreter encountered errors during initialization!")
+        throw new InterruptedException
+      }
+    })
+    true
+  }
+}
+
diff --git a/spark/scala-2.13/src/main/scala/org/apache/zeppelin/spark/SparkScala213Interpreter.scala b/spark/scala-2.13/src/main/scala/org/apache/zeppelin/spark/SparkScala213Interpreter.scala
new file mode 100644
index 0000000..1753193
--- /dev/null
+++ b/spark/scala-2.13/src/main/scala/org/apache/zeppelin/spark/SparkScala213Interpreter.scala
@@ -0,0 +1,179 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.zeppelin.spark
+
+
+import org.apache.spark.SparkConf
+import org.apache.zeppelin.interpreter.thrift.InterpreterCompletion
+import org.apache.zeppelin.interpreter.util.InterpreterOutputStream
+import org.apache.zeppelin.interpreter.{InterpreterContext, InterpreterGroup, InterpreterResult}
+import org.slf4j.{Logger, LoggerFactory}
+
+import java.io.{File, PrintWriter}
+import java.net.URLClassLoader
+import java.util.Properties
+import scala.tools.nsc.Settings
+import scala.tools.nsc.interpreter._
+import scala.tools.nsc.interpreter.shell.{Accumulator, Completion, ReplCompletion}
+
+/**
+  * SparkInterpreter for scala-2.13
+  */
+class SparkScala213Interpreter(override val conf: SparkConf,
+                               override val depFiles: java.util.List[String],
+                               override val properties: Properties,
+                               override val interpreterGroup: InterpreterGroup,
+                               override val sparkInterpreterClassLoader: URLClassLoader,
+                               val outputDir: File)
+  extends BaseSparkScalaInterpreter(conf, depFiles, properties, interpreterGroup, sparkInterpreterClassLoader) {
+
+  lazy override val LOGGER: Logger = LoggerFactory.getLogger(getClass)
+
+  private var sparkILoop: SparkILoop = _
+
+  private var scalaCompletion: Completion = _
+
+  override val interpreterOutput = new InterpreterOutputStream(LOGGER)
+
+  override def open(): Unit = {
+    super.open()
+    if (sparkMaster == "yarn-client") {
+      System.setProperty("SPARK_YARN_MODE", "true")
+    }
+    LOGGER.info("Scala shell repl output dir: " + outputDir.getAbsolutePath)
+    conf.set("spark.repl.class.outputDir", outputDir.getAbsolutePath)
+
+    val settings = new Settings()
+    settings.processArguments(List("-Yrepl-class-based",
+      "-Yrepl-outdir", s"${outputDir.getAbsolutePath}"), true)
+    settings.embeddedDefaults(sparkInterpreterClassLoader)
+    settings.usejavacp.value = true
+    this.userJars = getUserJars()
+    LOGGER.info("UserJars: " + userJars.mkString(File.pathSeparator))
+    settings.classpath.value = userJars.mkString(File.pathSeparator)
+
+    val printReplOutput = properties.getProperty("zeppelin.spark.printREPLOutput", "true").toBoolean
+    val replOut = if (printReplOutput) {
+      new PrintWriter(interpreterOutput, true)
+    } else {
+      new PrintWriter(Console.out, true)
+    }
+    sparkILoop = new SparkILoop(null, replOut)
+    sparkILoop.run(settings)
+    this.scalaCompletion = new ReplCompletion(sparkILoop.intp, new Accumulator)
+
+    createSparkContext()
+
+    scalaInterpret("import org.apache.spark.SparkContext._")
+    scalaInterpret("import spark.implicits._")
+    scalaInterpret("import spark.sql")
+    scalaInterpret("import org.apache.spark.sql.functions._")
+    // print empty string otherwise the last statement's output of this method
+    // (aka. import org.apache.spark.sql.functions._) will mix with the output of user code
+    scalaInterpret("print(\"\")")
+
+    createZeppelinContext()
+  }
+
+  def interpret(code: String, context: InterpreterContext): InterpreterResult = {
+
+    val originalOut = System.out
+    val printREPLOutput = context.getStringLocalProperty("printREPLOutput", "true").toBoolean
+
+    def _interpret(code: String): scala.tools.nsc.interpreter.Results.Result = {
+      Console.withOut(interpreterOutput) {
+        System.setOut(Console.out)
+        if (printREPLOutput) {
+          interpreterOutput.setInterpreterOutput(context.out)
+        } else {
+          interpreterOutput.setInterpreterOutput(null)
+        }
+        interpreterOutput.ignoreLeadingNewLinesFromScalaReporter()
+
+        val status = scalaInterpret(code) match {
+          case success@scala.tools.nsc.interpreter.Results.Success =>
+            success
+          case scala.tools.nsc.interpreter.Results.Error =>
+            val errorMsg = new String(interpreterOutput.getInterpreterOutput.toByteArray)
+            if (errorMsg.contains("value toDF is not a member of org.apache.spark.rdd.RDD") ||
+              errorMsg.contains("value toDS is not a member of org.apache.spark.rdd.RDD")) {
+              // prepend "import sqlContext.implicits._" due to
+              // https://issues.scala-lang.org/browse/SI-6649
+              context.out.clear()
+              scalaInterpret("import sqlContext.implicits._\n" + code)
+            } else {
+              scala.tools.nsc.interpreter.Results.Error
+            }
+          case scala.tools.nsc.interpreter.Results.Incomplete =>
+            // add print("") at the end in case the last line is comment which lead to INCOMPLETE
+            scalaInterpret(code + "\nprint(\"\")")
+        }
+        context.out.flush()
+        status
+      }
+    }
+    // reset the java stdout
+    System.setOut(originalOut)
+
+    context.out.write("")
+    val lastStatus = _interpret(code) match {
+      case scala.tools.nsc.interpreter.Results.Success =>
+        InterpreterResult.Code.SUCCESS
+      case scala.tools.nsc.interpreter.Results.Error =>
+        InterpreterResult.Code.ERROR
+      case scala.tools.nsc.interpreter.Results.Incomplete =>
+        InterpreterResult.Code.INCOMPLETE
+    }
+
+    lastStatus match {
+      case InterpreterResult.Code.INCOMPLETE => new InterpreterResult( lastStatus, "Incomplete expression" )
+      case _ => new InterpreterResult(lastStatus)
+    }
+  }
+
+  def scalaInterpret(code: String): scala.tools.nsc.interpreter.Results.Result =
+    sparkILoop.interpret(code)
+
+  protected override def completion(buf: String,
+                                    cursor: Int,
+                                    context: InterpreterContext): java.util.List[InterpreterCompletion] = {
+    val completions = scalaCompletion.complete(buf.substring(0, cursor), cursor).candidates
+      .map(e => new InterpreterCompletion(e.defString, e.defString, null))
+    scala.collection.JavaConverters.asJava(completions)
+  }
+
+  protected def bind(name: String, tpe: String, value: Object, modifier: List[String]): Unit = {
+    sparkILoop.beQuietDuring {
+      val result = sparkILoop.bind(name, tpe, value, modifier)
+      if (result != Results.Success) {
+        throw new RuntimeException("Fail to bind variable: " + name)
+      }
+    }
+  }
+
+  override def close(): Unit = {
+    super.close()
+    if (sparkILoop != null) {
+      sparkILoop.closeInterpreter()
+    }
+  }
+
+  override def getScalaShellClassLoader: ClassLoader = {
+    sparkILoop.classLoader
+  }
+}
diff --git a/spark/spark-scala-parent/src/main/scala/org/apache/zeppelin/spark/BaseSparkScalaInterpreter.scala b/spark/spark-scala-parent/src/main/scala/org/apache/zeppelin/spark/BaseSparkScalaInterpreter.scala
index 46100da..b07de98 100644
--- a/spark/spark-scala-parent/src/main/scala/org/apache/zeppelin/spark/BaseSparkScalaInterpreter.scala
+++ b/spark/spark-scala-parent/src/main/scala/org/apache/zeppelin/spark/BaseSparkScalaInterpreter.scala
@@ -18,26 +18,25 @@
 package org.apache.zeppelin.spark
 
 
-import java.io.{File, IOException}
-import java.net.{URL, URLClassLoader}
+import java.io.{File, IOException, PrintStream}
+import java.net.URLClassLoader
 import java.nio.file.Paths
 import java.util.concurrent.atomic.AtomicInteger
-
 import org.apache.commons.lang3.StringUtils
 import org.apache.hadoop.yarn.client.api.YarnClient
 import org.apache.hadoop.yarn.conf.YarnConfiguration
 import org.apache.hadoop.yarn.util.ConverterUtils
 import org.apache.hadoop.conf.Configuration
 import org.apache.hadoop.fs.{FileSystem, Path}
-import org.apache.spark.sql.SQLContext
+import org.apache.spark.sql.{SQLContext, SparkSession}
 import org.apache.spark.{SparkConf, SparkContext}
 import org.apache.zeppelin.interpreter.util.InterpreterOutputStream
 import org.apache.zeppelin.interpreter.{InterpreterContext, InterpreterGroup, InterpreterResult, ZeppelinContext}
+import org.apache.zeppelin.kotlin.KotlinInterpreter
 import org.slf4j.{Logger, LoggerFactory}
 
 import scala.collection.JavaConverters._
-import scala.tools.nsc.interpreter.Completion
-import scala.util.control.NonFatal
+
 
 /**
   * Base class for different scala versions of SparkInterpreter. It should be
@@ -61,16 +60,12 @@ abstract class BaseSparkScalaInterpreter(val conf: SparkConf,
 
   protected var sqlContext: SQLContext = _
 
-  protected var sparkSession: Object = _
+  protected var sparkSession: SparkSession = _
 
   protected var userJars: Seq[String] = _
 
-  protected var sparkHttpServer: Object = _
-
   protected var sparkUrl: String = _
 
-  protected var scalaCompletion: Completion = _
-
   protected var z: SparkZeppelinContext = _
 
   protected val interpreterOutput: InterpreterOutputStream
@@ -100,67 +95,20 @@ abstract class BaseSparkScalaInterpreter(val conf: SparkConf,
     BaseSparkScalaInterpreter.sessionNum.incrementAndGet()
   }
 
-  def interpret(code: String, context: InterpreterContext): InterpreterResult = {
-
-    val originalOut = System.out
-    val printREPLOutput = context.getStringLocalProperty("printREPLOutput", "true").toBoolean
-
-    def _interpret(code: String): scala.tools.nsc.interpreter.Results.Result = {
-      Console.withOut(interpreterOutput) {
-        System.setOut(Console.out)
-        if (printREPLOutput) {
-          interpreterOutput.setInterpreterOutput(context.out)
-        } else {
-          interpreterOutput.setInterpreterOutput(null)
-        }
-        interpreterOutput.ignoreLeadingNewLinesFromScalaReporter()
-
-        val status = scalaInterpret(code) match {
-          case success@scala.tools.nsc.interpreter.IR.Success =>
-            success
-          case scala.tools.nsc.interpreter.IR.Error =>
-            val errorMsg = new String(interpreterOutput.getInterpreterOutput.toByteArray)
-            if (errorMsg.contains("value toDF is not a member of org.apache.spark.rdd.RDD") ||
-              errorMsg.contains("value toDS is not a member of org.apache.spark.rdd.RDD")) {
-              // prepend "import sqlContext.implicits._" due to
-              // https://issues.scala-lang.org/browse/SI-6649
-              context.out.clear()
-              scalaInterpret("import sqlContext.implicits._\n" + code)
-            } else {
-              scala.tools.nsc.interpreter.IR.Error
-            }
-          case scala.tools.nsc.interpreter.IR.Incomplete =>
-            // add print("") at the end in case the last line is comment which lead to INCOMPLETE
-            scalaInterpret(code + "\nprint(\"\")")
-        }
-        context.out.flush()
-        status
-      }
-    }
-    // reset the java stdout
-    System.setOut(originalOut)
-
-    context.out.write("")
-    val lastStatus = _interpret(code) match {
-      case scala.tools.nsc.interpreter.IR.Success =>
-        InterpreterResult.Code.SUCCESS
-      case scala.tools.nsc.interpreter.IR.Error =>
-        InterpreterResult.Code.ERROR
-      case scala.tools.nsc.interpreter.IR.Incomplete =>
-        InterpreterResult.Code.INCOMPLETE
-    }
-
-    lastStatus match {
-      case InterpreterResult.Code.INCOMPLETE => new InterpreterResult( lastStatus, "Incomplete expression" )
-      case _ => new InterpreterResult(lastStatus)
+  // Used by KotlinSparkInterpreter
+  def delegateInterpret(interpreter: KotlinInterpreter,
+                        code: String,
+                        context: InterpreterContext): InterpreterResult = {
+    val out = context.out
+    val newOut = if (out != null) new PrintStream(out) else null
+    Console.withOut(newOut) {
+      interpreter.interpret(code, context)
     }
   }
 
   protected def interpret(code: String): InterpreterResult =
     interpret(code, InterpreterContext.get())
 
-  protected def scalaInterpret(code: String): scala.tools.nsc.interpreter.IR.Result
-
   protected def getProgress(jobGroup: String, context: InterpreterContext): Int = {
     JobProgressUtil.progress(sc, jobGroup)
   }
@@ -197,9 +145,6 @@ abstract class BaseSparkScalaInterpreter(val conf: SparkConf,
       cleanupStagingDirInternal(stagingDirPath, hadoopConf)
     }
 
-    if (sparkHttpServer != null) {
-      sparkHttpServer.getClass.getMethod("stop").invoke(sparkHttpServer)
-    }
     if (sc != null) {
       sc.stop()
       sc = null
@@ -244,7 +189,7 @@ abstract class BaseSparkScalaInterpreter(val conf: SparkConf,
         sparkClz.getMethod("hiveClassesArePresent").invoke(sparkObj).asInstanceOf[Boolean]
       if (hiveSiteExisted && hiveClassesPresent) {
         builder.getClass.getMethod("enableHiveSupport").invoke(builder)
-        sparkSession = builder.getClass.getMethod("getOrCreate").invoke(builder)
+        sparkSession = builder.getClass.getMethod("getOrCreate").invoke(builder).asInstanceOf[SparkSession]
         LOGGER.info("Created Spark session (with Hive support)");
       } else {
         if (!hiveClassesPresent) {
@@ -253,11 +198,11 @@ abstract class BaseSparkScalaInterpreter(val conf: SparkConf,
         if (!hiveSiteExisted) {
           LOGGER.warn("Hive support can not be enabled because no hive-site.xml found")
         }
-        sparkSession = builder.getClass.getMethod("getOrCreate").invoke(builder)
+        sparkSession = builder.getClass.getMethod("getOrCreate").invoke(builder).asInstanceOf[SparkSession]
         LOGGER.info("Created Spark session (without Hive support)");
       }
     } else {
-      sparkSession = builder.getClass.getMethod("getOrCreate").invoke(builder)
+      sparkSession = builder.getClass.getMethod("getOrCreate").invoke(builder).asInstanceOf[SparkSession]
       LOGGER.info("Created Spark session (without Hive support)");
     }
 
@@ -276,17 +221,9 @@ abstract class BaseSparkScalaInterpreter(val conf: SparkConf,
     bind("spark", sparkSession.getClass.getCanonicalName, sparkSession, List("""@transient"""))
     bind("sc", "org.apache.spark.SparkContext", sc, List("""@transient"""))
     bind("sqlContext", "org.apache.spark.sql.SQLContext", sqlContext, List("""@transient"""))
-
-    scalaInterpret("import org.apache.spark.SparkContext._")
-    scalaInterpret("import spark.implicits._")
-    scalaInterpret("import spark.sql")
-    scalaInterpret("import org.apache.spark.sql.functions._")
-    // print empty string otherwise the last statement's output of this method
-    // (aka. import org.apache.spark.sql.functions._) will mix with the output of user code
-    scalaInterpret("print(\"\")")
   }
 
-  private def initAndSendSparkWebUrl(): Unit = {
+  protected def initAndSendSparkWebUrl(): Unit = {
     val webUiUrl = properties.getProperty("zeppelin.spark.uiWebUrl");
     if (!StringUtils.isBlank(webUiUrl)) {
       this.sparkUrl = webUiUrl.replace("{{applicationId}}", sc.applicationId);
@@ -306,7 +243,6 @@ abstract class BaseSparkScalaInterpreter(val conf: SparkConf,
     }
 
     sparkShims.setupSparkListener(sc.master, sparkUrl, InterpreterContext.get)
-
     z = new SparkZeppelinContext(sc, sparkShims,
       interpreterGroup.getInterpreterHookRegistry,
       properties.getProperty("zeppelin.spark.maxResult", "1000").toInt)
@@ -370,45 +306,6 @@ abstract class BaseSparkScalaInterpreter(val conf: SparkConf,
     method.invoke(obj, parameters: _ *)
   }
 
-  protected def startHttpServer(outputDir: File): Option[(Object, String)] = {
-    try {
-      val httpServerClass = Class.forName("org.apache.spark.HttpServer")
-      val securityManager = {
-        val constructor = Class.forName("org.apache.spark.SecurityManager")
-          .getConstructor(classOf[SparkConf])
-        constructor.setAccessible(true)
-        constructor.newInstance(conf).asInstanceOf[Object]
-      }
-      val httpServerConstructor = httpServerClass
-        .getConstructor(classOf[SparkConf],
-          classOf[File],
-          Class.forName("org.apache.spark.SecurityManager"),
-          classOf[Int],
-          classOf[String])
-      httpServerConstructor.setAccessible(true)
-      // Create Http Server
-      val port = conf.getInt("spark.replClassServer.port", 0)
-      val server = httpServerConstructor
-        .newInstance(conf, outputDir, securityManager, new Integer(port), "HTTP server")
-        .asInstanceOf[Object]
-
-      // Start Http Server
-      val startMethod = server.getClass.getMethod("start")
-      startMethod.setAccessible(true)
-      startMethod.invoke(server)
-
-      // Get uri of this Http Server
-      val uriMethod = server.getClass.getMethod("uri")
-      uriMethod.setAccessible(true)
-      val uri = uriMethod.invoke(server).asInstanceOf[String]
-      Some((server, uri))
-    } catch {
-      // Spark 2.0+ removed HttpServer, so return null instead.
-      case NonFatal(e) =>
-        None
-    }
-  }
-
   protected def getUserJars(): Seq[String] = {
     var classLoader = Thread.currentThread().getContextClassLoader
     var extraJars = Seq.empty[String]
@@ -435,7 +332,7 @@ abstract class BaseSparkScalaInterpreter(val conf: SparkConf,
   }
 
   protected def getUserFiles(): Seq[String] = {
-    depFiles.asScala.filter(!_.endsWith(".jar"))
+    depFiles.asScala.toSeq.filter(!_.endsWith(".jar"))
   }
 }
 
diff --git a/zeppelin-interpreter-parent/pom.xml b/zeppelin-interpreter-parent/pom.xml
index 572a70a..da1e438 100644
--- a/zeppelin-interpreter-parent/pom.xml
+++ b/zeppelin-interpreter-parent/pom.xml
@@ -39,10 +39,20 @@
     </dependency>
 
     <dependency>
-      <groupId>${project.groupId}</groupId>
+      <groupId>org.apache.zeppelin</groupId>
       <artifactId>zeppelin-interpreter</artifactId>
       <version>${project.version}</version>
       <scope>provided</scope>
+      <exclusions>
+        <exclusion>
+          <groupId>io.netty</groupId>
+          <artifactId>*</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>io.atomix</groupId>
+          <artifactId>atomix</artifactId>
+        </exclusion>
+      </exclusions>
     </dependency>
 
     <dependency>
diff --git a/zeppelin-jupyter-interpreter-shaded/pom.xml b/zeppelin-jupyter-interpreter-shaded/pom.xml
index da68cca..44ee932 100644
--- a/zeppelin-jupyter-interpreter-shaded/pom.xml
+++ b/zeppelin-jupyter-interpreter-shaded/pom.xml
@@ -79,6 +79,14 @@
               <pattern>com.google</pattern>
               <shadedPattern>org.apache.zeppelin.jupyter.com.google</shadedPattern>
             </relocation>
+            <relocation>
+              <pattern>io</pattern>
+              <shadedPattern>org.apache.zeppelin.jupyter.io</shadedPattern>
+            </relocation>
+            <relocation>
+              <pattern>com.esotericsoftware</pattern>
+              <shadedPattern>org.apache.zeppelin.jupyter.com.esotericsoftware</shadedPattern>
+            </relocation>
           </relocations>
 
         </configuration>
diff --git a/zeppelin-zengine/src/main/java/org/apache/zeppelin/interpreter/launcher/SparkInterpreterLauncher.java b/zeppelin-zengine/src/main/java/org/apache/zeppelin/interpreter/launcher/SparkInterpreterLauncher.java
index 4321052..85b5fc6 100644
--- a/zeppelin-zengine/src/main/java/org/apache/zeppelin/interpreter/launcher/SparkInterpreterLauncher.java
+++ b/zeppelin-zengine/src/main/java/org/apache/zeppelin/interpreter/launcher/SparkInterpreterLauncher.java
@@ -132,6 +132,7 @@ public class SparkInterpreterLauncher extends StandardInterpreterLauncher {
       String sparkHome = getEnv("SPARK_HOME");
       LOGGER.info("SPARK_HOME: {}", sparkHome);
       scalaVersion = detectSparkScalaVersion(sparkHome, env);
+      LOGGER.info("Scala version for Spark: {}", scalaVersion);
       context.getProperties().put("zeppelin.spark.scala.version", scalaVersion);
     } catch (Exception e) {
       throw new IOException("Fail to detect scala version, the reason is:"+ e.getMessage());
@@ -277,12 +278,12 @@ public class SparkInterpreterLauncher extends StandardInterpreterLauncher {
     Matcher matcher = pattern.matcher(processOutput);
     if (matcher.find()) {
       String scalaVersion = matcher.group(1);
-      if (scalaVersion.startsWith("2.10")) {
-        return "2.10";
-      } else if (scalaVersion.startsWith("2.11")) {
+      if (scalaVersion.startsWith("2.11")) {
         return "2.11";
       } else if (scalaVersion.startsWith("2.12")) {
         return "2.12";
+      } else if (scalaVersion.startsWith("2.13")) {
+        return "2.13";
       } else {
         throw new Exception("Unsupported scala version: " + scalaVersion);
       }