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Posted to commits@spark.apache.org by rx...@apache.org on 2016/04/25 05:40:07 UTC

spark git commit: [SPARK-14868][BUILD] Enable NewLineAtEofChecker in checkstyle and fix lint-java errors

Repository: spark
Updated Branches:
  refs/heads/master d0ca5797a -> d34d65037


[SPARK-14868][BUILD] Enable NewLineAtEofChecker in checkstyle and fix lint-java errors

## What changes were proposed in this pull request?

Spark uses `NewLineAtEofChecker` rule in Scala by ScalaStyle. And, most Java code also comply with the rule. This PR aims to enforce the same rule `NewlineAtEndOfFile` by CheckStyle explicitly. Also, this fixes lint-java errors since SPARK-14465. The followings are the items.

- Adds a new line at the end of the files (19 files)
- Fixes 25 lint-java errors (12 RedundantModifier, 6 **ArrayTypeStyle**, 2 LineLength, 2 UnusedImports, 2 RegexpSingleline, 1 ModifierOrder)

## How was this patch tested?

After the Jenkins test succeeds, `dev/lint-java` should pass. (Currently, Jenkins dose not run lint-java.)
```bash
$ dev/lint-java
Using `mvn` from path: /usr/local/bin/mvn
Checkstyle checks passed.
```

Author: Dongjoon Hyun <do...@apache.org>

Closes #12632 from dongjoon-hyun/SPARK-14868.


Project: http://git-wip-us.apache.org/repos/asf/spark/repo
Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/d34d6503
Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/d34d6503
Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/d34d6503

Branch: refs/heads/master
Commit: d34d6503786bbe429c10ddb1879519cc9bd709b6
Parents: d0ca579
Author: Dongjoon Hyun <do...@apache.org>
Authored: Sun Apr 24 20:40:03 2016 -0700
Committer: Reynold Xin <rx...@databricks.com>
Committed: Sun Apr 24 20:40:03 2016 -0700

----------------------------------------------------------------------
 .../spark/api/java/function/package-info.java   |  2 +-
 .../shuffle/sort/ShuffleExternalSorter.java     |  4 +--
 .../unsafe/sort/PrefixComparators.java          | 27 ++++++++++----------
 .../util/collection/unsafe/sort/RadixSort.java  |  4 +--
 .../unsafe/sort/UnsafeExternalSorter.java       |  4 +--
 .../apache/spark/annotation/package-info.java   |  2 +-
 .../org/apache/spark/api/java/package-info.java |  2 +-
 .../apache/spark/broadcast/package-info.java    |  2 +-
 .../org/apache/spark/executor/package-info.java |  2 +-
 .../scala/org/apache/spark/io/package-info.java |  2 +-
 .../org/apache/spark/rdd/package-info.java      |  2 +-
 .../apache/spark/scheduler/package-info.java    |  2 +-
 .../org/apache/spark/util/package-info.java     |  2 +-
 .../apache/spark/util/random/package-info.java  |  2 +-
 dev/checkstyle.xml                              |  2 ++
 .../spark/streaming/flume/package-info.java     |  2 +-
 .../spark/streaming/kafka/package-info.java     |  2 +-
 .../src/main/resources/log4j.properties         |  2 +-
 .../org/apache/spark/graphx/package-info.java   |  2 +-
 .../apache/spark/graphx/util/package-info.java  |  2 +-
 .../org/apache/spark/mllib/package-info.java    |  2 +-
 .../JavaRandomForestClassifierSuite.java        |  6 ++---
 .../JavaRandomForestRegressorSuite.java         |  6 ++---
 .../SpecificParquetRecordReaderBase.java        |  1 -
 .../spark/streaming/api/java/package-info.java  |  2 +-
 .../spark/streaming/dstream/package-info.java   |  2 +-
 26 files changed, 45 insertions(+), 45 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/core/src/main/java/org/apache/spark/api/java/function/package-info.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/org/apache/spark/api/java/function/package-info.java b/core/src/main/java/org/apache/spark/api/java/function/package-info.java
index 463a42f..eefb29a 100644
--- a/core/src/main/java/org/apache/spark/api/java/function/package-info.java
+++ b/core/src/main/java/org/apache/spark/api/java/function/package-info.java
@@ -20,4 +20,4 @@
  * these interfaces to pass functions to various Java API methods for Spark. Please visit Spark's
  * Java programming guide for more details.
  */
-package org.apache.spark.api.java.function;
\ No newline at end of file
+package org.apache.spark.api.java.function;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/core/src/main/java/org/apache/spark/shuffle/sort/ShuffleExternalSorter.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/org/apache/spark/shuffle/sort/ShuffleExternalSorter.java b/core/src/main/java/org/apache/spark/shuffle/sort/ShuffleExternalSorter.java
index c4041a9..2be5a16 100644
--- a/core/src/main/java/org/apache/spark/shuffle/sort/ShuffleExternalSorter.java
+++ b/core/src/main/java/org/apache/spark/shuffle/sort/ShuffleExternalSorter.java
@@ -256,8 +256,8 @@ final class ShuffleExternalSorter extends MemoryConsumer {
     final long spillSize = freeMemory();
     inMemSorter.reset();
     // Reset the in-memory sorter's pointer array only after freeing up the memory pages holding the
-    // records. Otherwise, if the task is over allocated memory, then without freeing the memory pages,
-    // we might not be able to get memory for the pointer array.
+    // records. Otherwise, if the task is over allocated memory, then without freeing the memory
+    // pages, we might not be able to get memory for the pointer array.
     taskContext.taskMetrics().incMemoryBytesSpilled(spillSize);
     return spillSize;
   }

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/PrefixComparators.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/PrefixComparators.java b/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/PrefixComparators.java
index 21f2fde..c44630f 100644
--- a/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/PrefixComparators.java
+++ b/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/PrefixComparators.java
@@ -22,7 +22,6 @@ import com.google.common.primitives.UnsignedLongs;
 import org.apache.spark.annotation.Private;
 import org.apache.spark.unsafe.types.ByteArray;
 import org.apache.spark.unsafe.types.UTF8String;
-import org.apache.spark.util.Utils;
 
 @Private
 public class PrefixComparators {
@@ -69,7 +68,7 @@ public class PrefixComparators {
    * Provides radix sort parameters. Comparators implementing this also are indicating that the
    * ordering they define is compatible with radix sort.
    */
-  public static abstract class RadixSortSupport extends PrefixComparator {
+  public abstract static class RadixSortSupport extends PrefixComparator {
     /** @return Whether the sort should be descending in binary sort order. */
     public abstract boolean sortDescending();
 
@@ -82,37 +81,37 @@ public class PrefixComparators {
   //
 
   public static final class UnsignedPrefixComparator extends RadixSortSupport {
-    @Override public final boolean sortDescending() { return false; }
-    @Override public final boolean sortSigned() { return false; }
+    @Override public boolean sortDescending() { return false; }
+    @Override public boolean sortSigned() { return false; }
     @Override
-    public final int compare(long aPrefix, long bPrefix) {
+    public int compare(long aPrefix, long bPrefix) {
       return UnsignedLongs.compare(aPrefix, bPrefix);
     }
   }
 
   public static final class UnsignedPrefixComparatorDesc extends RadixSortSupport {
-    @Override public final boolean sortDescending() { return true; }
-    @Override public final boolean sortSigned() { return false; }
+    @Override public boolean sortDescending() { return true; }
+    @Override public boolean sortSigned() { return false; }
     @Override
-    public final int compare(long bPrefix, long aPrefix) {
+    public int compare(long bPrefix, long aPrefix) {
       return UnsignedLongs.compare(aPrefix, bPrefix);
     }
   }
 
   public static final class SignedPrefixComparator extends RadixSortSupport {
-    @Override public final boolean sortDescending() { return false; }
-    @Override public final boolean sortSigned() { return true; }
+    @Override public boolean sortDescending() { return false; }
+    @Override public boolean sortSigned() { return true; }
     @Override
-    public final int compare(long a, long b) {
+    public int compare(long a, long b) {
       return (a < b) ? -1 : (a > b) ? 1 : 0;
     }
   }
 
   public static final class SignedPrefixComparatorDesc extends RadixSortSupport {
-    @Override public final boolean sortDescending() { return true; }
-    @Override public final boolean sortSigned() { return true; }
+    @Override public boolean sortDescending() { return true; }
+    @Override public boolean sortSigned() { return true; }
     @Override
-    public final int compare(long b, long a) {
+    public int compare(long b, long a) {
       return (a < b) ? -1 : (a > b) ? 1 : 0;
     }
   }

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/RadixSort.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/RadixSort.java b/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/RadixSort.java
index 3357b8e..4f3f0de 100644
--- a/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/RadixSort.java
+++ b/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/RadixSort.java
@@ -16,7 +16,7 @@
  */
 
 package org.apache.spark.util.collection.unsafe.sort;
- 
+
 import org.apache.spark.unsafe.Platform;
 import org.apache.spark.unsafe.array.LongArray;
 
@@ -227,7 +227,7 @@ public class RadixSort {
     }
     return counts;
   }
-  
+
   /**
    * Specialization of sortAtByte() for key-prefix arrays.
    */

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/UnsafeExternalSorter.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/UnsafeExternalSorter.java b/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/UnsafeExternalSorter.java
index 3c1cd39..8b6c96a 100644
--- a/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/UnsafeExternalSorter.java
+++ b/core/src/main/java/org/apache/spark/util/collection/unsafe/sort/UnsafeExternalSorter.java
@@ -212,8 +212,8 @@ public final class UnsafeExternalSorter extends MemoryConsumer {
     // written to disk. This also counts the space needed to store the sorter's pointer array.
     inMemSorter.reset();
     // Reset the in-memory sorter's pointer array only after freeing up the memory pages holding the
-    // records. Otherwise, if the task is over allocated memory, then without freeing the memory pages,
-    // we might not be able to get memory for the pointer array.
+    // records. Otherwise, if the task is over allocated memory, then without freeing the memory
+    // pages, we might not be able to get memory for the pointer array.
 
     taskContext.taskMetrics().incMemoryBytesSpilled(spillSize);
     totalSpillBytes += spillSize;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/core/src/main/scala/org/apache/spark/annotation/package-info.java
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/annotation/package-info.java b/core/src/main/scala/org/apache/spark/annotation/package-info.java
index 12c7afe..9efdccf 100644
--- a/core/src/main/scala/org/apache/spark/annotation/package-info.java
+++ b/core/src/main/scala/org/apache/spark/annotation/package-info.java
@@ -20,4 +20,4 @@
  * This package consist of these annotations, which are used project wide and are reflected in
  * Scala and Java docs.
  */
-package org.apache.spark.annotation;
\ No newline at end of file
+package org.apache.spark.annotation;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/core/src/main/scala/org/apache/spark/api/java/package-info.java
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/api/java/package-info.java b/core/src/main/scala/org/apache/spark/api/java/package-info.java
index 10a480f..699181c 100644
--- a/core/src/main/scala/org/apache/spark/api/java/package-info.java
+++ b/core/src/main/scala/org/apache/spark/api/java/package-info.java
@@ -18,4 +18,4 @@
 /**
  * Spark Java programming APIs.
  */
-package org.apache.spark.api.java;
\ No newline at end of file
+package org.apache.spark.api.java;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/core/src/main/scala/org/apache/spark/broadcast/package-info.java
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/broadcast/package-info.java b/core/src/main/scala/org/apache/spark/broadcast/package-info.java
index 1510e6e..bbf4a68 100644
--- a/core/src/main/scala/org/apache/spark/broadcast/package-info.java
+++ b/core/src/main/scala/org/apache/spark/broadcast/package-info.java
@@ -18,4 +18,4 @@
 /**
  * Spark's broadcast variables, used to broadcast immutable datasets to all nodes.
  */
-package org.apache.spark.broadcast;
\ No newline at end of file
+package org.apache.spark.broadcast;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/core/src/main/scala/org/apache/spark/executor/package-info.java
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/executor/package-info.java b/core/src/main/scala/org/apache/spark/executor/package-info.java
index dd3b681..fb28096 100644
--- a/core/src/main/scala/org/apache/spark/executor/package-info.java
+++ b/core/src/main/scala/org/apache/spark/executor/package-info.java
@@ -18,4 +18,4 @@
 /**
  * Package for executor components used with various cluster managers.
  */
-package org.apache.spark.executor;
\ No newline at end of file
+package org.apache.spark.executor;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/core/src/main/scala/org/apache/spark/io/package-info.java
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/io/package-info.java b/core/src/main/scala/org/apache/spark/io/package-info.java
index bea1bfd..1a46660 100644
--- a/core/src/main/scala/org/apache/spark/io/package-info.java
+++ b/core/src/main/scala/org/apache/spark/io/package-info.java
@@ -18,4 +18,4 @@
 /**
  * IO codecs used for compression.
  */
-package org.apache.spark.io;
\ No newline at end of file
+package org.apache.spark.io;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/core/src/main/scala/org/apache/spark/rdd/package-info.java
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/rdd/package-info.java b/core/src/main/scala/org/apache/spark/rdd/package-info.java
index 176cc58..d9aa9be 100644
--- a/core/src/main/scala/org/apache/spark/rdd/package-info.java
+++ b/core/src/main/scala/org/apache/spark/rdd/package-info.java
@@ -18,4 +18,4 @@
 /**
  * Provides implementation's of various RDDs.
  */
-package org.apache.spark.rdd;
\ No newline at end of file
+package org.apache.spark.rdd;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/core/src/main/scala/org/apache/spark/scheduler/package-info.java
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/scheduler/package-info.java b/core/src/main/scala/org/apache/spark/scheduler/package-info.java
index 5b4a628..90fc652 100644
--- a/core/src/main/scala/org/apache/spark/scheduler/package-info.java
+++ b/core/src/main/scala/org/apache/spark/scheduler/package-info.java
@@ -18,4 +18,4 @@
 /**
  * Spark's DAG scheduler.
  */
-package org.apache.spark.scheduler;
\ No newline at end of file
+package org.apache.spark.scheduler;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/core/src/main/scala/org/apache/spark/util/package-info.java
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/util/package-info.java b/core/src/main/scala/org/apache/spark/util/package-info.java
index 819f54e..4c5d33d 100644
--- a/core/src/main/scala/org/apache/spark/util/package-info.java
+++ b/core/src/main/scala/org/apache/spark/util/package-info.java
@@ -18,4 +18,4 @@
 /**
  * Spark utilities.
  */
-package org.apache.spark.util;
\ No newline at end of file
+package org.apache.spark.util;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/core/src/main/scala/org/apache/spark/util/random/package-info.java
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/util/random/package-info.java b/core/src/main/scala/org/apache/spark/util/random/package-info.java
index 62c3762..e4f0c0f 100644
--- a/core/src/main/scala/org/apache/spark/util/random/package-info.java
+++ b/core/src/main/scala/org/apache/spark/util/random/package-info.java
@@ -18,4 +18,4 @@
 /**
  * Utilities for random number generation.
  */
-package org.apache.spark.util.random;
\ No newline at end of file
+package org.apache.spark.util.random;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/dev/checkstyle.xml
----------------------------------------------------------------------
diff --git a/dev/checkstyle.xml b/dev/checkstyle.xml
index b66dca9..3de6aa9 100644
--- a/dev/checkstyle.xml
+++ b/dev/checkstyle.xml
@@ -64,6 +64,8 @@
         <property name="message" value="No trailing whitespace allowed."/>
     </module>
 
+    <module name="NewlineAtEndOfFile"/>
+
     <module name="TreeWalker">
         <module name="OuterTypeFilename"/>
         <module name="IllegalTokenText">

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/external/flume/src/main/scala/org/apache/spark/streaming/flume/package-info.java
----------------------------------------------------------------------
diff --git a/external/flume/src/main/scala/org/apache/spark/streaming/flume/package-info.java b/external/flume/src/main/scala/org/apache/spark/streaming/flume/package-info.java
index d31aa5f..4a5da22 100644
--- a/external/flume/src/main/scala/org/apache/spark/streaming/flume/package-info.java
+++ b/external/flume/src/main/scala/org/apache/spark/streaming/flume/package-info.java
@@ -18,4 +18,4 @@
 /**
  * Spark streaming receiver for Flume.
  */
-package org.apache.spark.streaming.flume;
\ No newline at end of file
+package org.apache.spark.streaming.flume;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/external/kafka/src/main/scala/org/apache/spark/streaming/kafka/package-info.java
----------------------------------------------------------------------
diff --git a/external/kafka/src/main/scala/org/apache/spark/streaming/kafka/package-info.java b/external/kafka/src/main/scala/org/apache/spark/streaming/kafka/package-info.java
index 947bae1..2e5ab0f 100644
--- a/external/kafka/src/main/scala/org/apache/spark/streaming/kafka/package-info.java
+++ b/external/kafka/src/main/scala/org/apache/spark/streaming/kafka/package-info.java
@@ -18,4 +18,4 @@
 /**
  * Kafka receiver for spark streaming.
  */
-package org.apache.spark.streaming.kafka;
\ No newline at end of file
+package org.apache.spark.streaming.kafka;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/external/kinesis-asl/src/main/resources/log4j.properties
----------------------------------------------------------------------
diff --git a/external/kinesis-asl/src/main/resources/log4j.properties b/external/kinesis-asl/src/main/resources/log4j.properties
index 8118d12..4f5ea7b 100644
--- a/external/kinesis-asl/src/main/resources/log4j.properties
+++ b/external/kinesis-asl/src/main/resources/log4j.properties
@@ -34,4 +34,4 @@ log4j.appender.console.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss} %p %c{1}:
 log4j.logger.org.spark_project.jetty=WARN
 log4j.logger.org.spark_project.jetty.util.component.AbstractLifeCycle=ERROR
 log4j.logger.org.apache.spark.repl.SparkIMain$exprTyper=INFO
-log4j.logger.org.apache.spark.repl.SparkILoop$SparkILoopInterpreter=INFO
\ No newline at end of file
+log4j.logger.org.apache.spark.repl.SparkILoop$SparkILoopInterpreter=INFO

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/graphx/src/main/scala/org/apache/spark/graphx/package-info.java
----------------------------------------------------------------------
diff --git a/graphx/src/main/scala/org/apache/spark/graphx/package-info.java b/graphx/src/main/scala/org/apache/spark/graphx/package-info.java
index f659cc5..7c63447 100644
--- a/graphx/src/main/scala/org/apache/spark/graphx/package-info.java
+++ b/graphx/src/main/scala/org/apache/spark/graphx/package-info.java
@@ -19,4 +19,4 @@
  * ALPHA COMPONENT
  * GraphX is a graph processing framework built on top of Spark.
  */
-package org.apache.spark.graphx;
\ No newline at end of file
+package org.apache.spark.graphx;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/graphx/src/main/scala/org/apache/spark/graphx/util/package-info.java
----------------------------------------------------------------------
diff --git a/graphx/src/main/scala/org/apache/spark/graphx/util/package-info.java b/graphx/src/main/scala/org/apache/spark/graphx/util/package-info.java
index 90cd1d4..86b427e 100644
--- a/graphx/src/main/scala/org/apache/spark/graphx/util/package-info.java
+++ b/graphx/src/main/scala/org/apache/spark/graphx/util/package-info.java
@@ -18,4 +18,4 @@
 /**
  * Collections of utilities used by graphx.
  */
-package org.apache.spark.graphx.util;
\ No newline at end of file
+package org.apache.spark.graphx.util;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/mllib/src/main/scala/org/apache/spark/mllib/package-info.java
----------------------------------------------------------------------
diff --git a/mllib/src/main/scala/org/apache/spark/mllib/package-info.java b/mllib/src/main/scala/org/apache/spark/mllib/package-info.java
index 4991bc9..5962efa 100644
--- a/mllib/src/main/scala/org/apache/spark/mllib/package-info.java
+++ b/mllib/src/main/scala/org/apache/spark/mllib/package-info.java
@@ -18,4 +18,4 @@
 /**
  * Spark's machine learning library.
  */
-package org.apache.spark.mllib;
\ No newline at end of file
+package org.apache.spark.mllib;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/mllib/src/test/java/org/apache/spark/ml/classification/JavaRandomForestClassifierSuite.java
----------------------------------------------------------------------
diff --git a/mllib/src/test/java/org/apache/spark/ml/classification/JavaRandomForestClassifierSuite.java b/mllib/src/test/java/org/apache/spark/ml/classification/JavaRandomForestClassifierSuite.java
index 5aec52a..4f40fd6 100644
--- a/mllib/src/test/java/org/apache/spark/ml/classification/JavaRandomForestClassifierSuite.java
+++ b/mllib/src/test/java/org/apache/spark/ml/classification/JavaRandomForestClassifierSuite.java
@@ -81,15 +81,15 @@ public class JavaRandomForestClassifierSuite implements Serializable {
     for (String featureSubsetStrategy: RandomForestClassifier.supportedFeatureSubsetStrategies()) {
       rf.setFeatureSubsetStrategy(featureSubsetStrategy);
     }
-    String realStrategies[] = {".1", ".10", "0.10", "0.1", "0.9", "1.0"};
+    String[] realStrategies = {".1", ".10", "0.10", "0.1", "0.9", "1.0"};
     for (String strategy: realStrategies) {
       rf.setFeatureSubsetStrategy(strategy);
     }
-    String integerStrategies[] = {"1", "10", "100", "1000", "10000"};
+    String[] integerStrategies = {"1", "10", "100", "1000", "10000"};
     for (String strategy: integerStrategies) {
       rf.setFeatureSubsetStrategy(strategy);
     }
-    String invalidStrategies[] = {"-.1", "-.10", "-0.10", ".0", "0.0", "1.1", "0"};
+    String[] invalidStrategies = {"-.1", "-.10", "-0.10", ".0", "0.0", "1.1", "0"};
     for (String strategy: invalidStrategies) {
       try {
         rf.setFeatureSubsetStrategy(strategy);

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/mllib/src/test/java/org/apache/spark/ml/regression/JavaRandomForestRegressorSuite.java
----------------------------------------------------------------------
diff --git a/mllib/src/test/java/org/apache/spark/ml/regression/JavaRandomForestRegressorSuite.java b/mllib/src/test/java/org/apache/spark/ml/regression/JavaRandomForestRegressorSuite.java
index a873666..38b895f 100644
--- a/mllib/src/test/java/org/apache/spark/ml/regression/JavaRandomForestRegressorSuite.java
+++ b/mllib/src/test/java/org/apache/spark/ml/regression/JavaRandomForestRegressorSuite.java
@@ -81,15 +81,15 @@ public class JavaRandomForestRegressorSuite implements Serializable {
     for (String featureSubsetStrategy: RandomForestRegressor.supportedFeatureSubsetStrategies()) {
       rf.setFeatureSubsetStrategy(featureSubsetStrategy);
     }
-    String realStrategies[] = {".1", ".10", "0.10", "0.1", "0.9", "1.0"};
+    String[] realStrategies = {".1", ".10", "0.10", "0.1", "0.9", "1.0"};
     for (String strategy: realStrategies) {
       rf.setFeatureSubsetStrategy(strategy);
     }
-    String integerStrategies[] = {"1", "10", "100", "1000", "10000"};
+    String[] integerStrategies = {"1", "10", "100", "1000", "10000"};
     for (String strategy: integerStrategies) {
       rf.setFeatureSubsetStrategy(strategy);
     }
-    String invalidStrategies[] = {"-.1", "-.10", "-0.10", ".0", "0.0", "1.1", "0"};
+    String[] invalidStrategies = {"-.1", "-.10", "-0.10", ".0", "0.0", "1.1", "0"};
     for (String strategy: invalidStrategies) {
       try {
         rf.setFeatureSubsetStrategy(strategy);

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/SpecificParquetRecordReaderBase.java
----------------------------------------------------------------------
diff --git a/sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/SpecificParquetRecordReaderBase.java b/sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/SpecificParquetRecordReaderBase.java
index b224a86..cbe8f78 100644
--- a/sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/SpecificParquetRecordReaderBase.java
+++ b/sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/SpecificParquetRecordReaderBase.java
@@ -38,7 +38,6 @@ import static org.apache.parquet.hadoop.ParquetFileReader.readFooter;
 import static org.apache.parquet.hadoop.ParquetInputFormat.getFilter;
 
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.mapreduce.InputSplit;
 import org.apache.hadoop.mapreduce.RecordReader;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/streaming/src/main/scala/org/apache/spark/streaming/api/java/package-info.java
----------------------------------------------------------------------
diff --git a/streaming/src/main/scala/org/apache/spark/streaming/api/java/package-info.java b/streaming/src/main/scala/org/apache/spark/streaming/api/java/package-info.java
index d43d949..348d21d 100644
--- a/streaming/src/main/scala/org/apache/spark/streaming/api/java/package-info.java
+++ b/streaming/src/main/scala/org/apache/spark/streaming/api/java/package-info.java
@@ -18,4 +18,4 @@
 /**
  * Java APIs for spark streaming.
  */
-package org.apache.spark.streaming.api.java;
\ No newline at end of file
+package org.apache.spark.streaming.api.java;

http://git-wip-us.apache.org/repos/asf/spark/blob/d34d6503/streaming/src/main/scala/org/apache/spark/streaming/dstream/package-info.java
----------------------------------------------------------------------
diff --git a/streaming/src/main/scala/org/apache/spark/streaming/dstream/package-info.java b/streaming/src/main/scala/org/apache/spark/streaming/dstream/package-info.java
index 05ca2dd..4d08afc 100644
--- a/streaming/src/main/scala/org/apache/spark/streaming/dstream/package-info.java
+++ b/streaming/src/main/scala/org/apache/spark/streaming/dstream/package-info.java
@@ -18,4 +18,4 @@
 /**
  * Various implementations of DStreams.
  */
-package org.apache.spark.streaming.dstream;
\ No newline at end of file
+package org.apache.spark.streaming.dstream;


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