diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapred/TestMapTask.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapred/TestMapTask.java
index 47e74e5ce3e27..2bcfefcc532cc 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapred/TestMapTask.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapred/TestMapTask.java
@@ -58,8 +58,8 @@ public void setup() throws Exception {
     if(!TEST_ROOT_DIR.exists()) {
       TEST_ROOT_DIR.mkdirs();
     }
-  } 
- 
+  }
+
   @After
   public void cleanup() throws Exception {
     FileUtil.fullyDelete(TEST_ROOT_DIR);
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestOldCombinerGrouping.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestOldCombinerGrouping.java
index f87a5728a146d..d6b4952f9d6ad 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestOldCombinerGrouping.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestOldCombinerGrouping.java
@@ -122,7 +122,7 @@ public int compare(Text o1, Text o2) {
   @After
   public void cleanup() {
     FileUtil.fullyDelete(TEST_ROOT_DIR);
-  } 
+  }
 
   @Test
   public void testCombiner() throws Exception {
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/TestNewCombinerGrouping.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/TestNewCombinerGrouping.java
index e8b4998839072..42b77175507fc 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/TestNewCombinerGrouping.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/TestNewCombinerGrouping.java
@@ -109,7 +109,7 @@ public int compare(Text o1, Text o2) {
   public void cleanup() {
     FileUtil.fullyDelete(TEST_ROOT_DIR);
   }
-  
+
   @Test
   public void testCombiner() throws Exception {
     if (!TEST_ROOT_DIR.mkdirs()) {