http://git-wip-us.apache.org/repos/asf/hadoop/blob/5b580aaa/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestRMAdminCLI.java
----------------------------------------------------------------------
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestRMAdminCLI.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestRMAdminCLI.java
index 013c227..fe320af 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestRMAdminCLI.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestRMAdminCLI.java
@@ -379,7 +379,7 @@ public class TestRMAdminCLI {
         new String[] {"group1", "group2"});
     PrintStream origOut = System.out;
     PrintStream out = mock(PrintStream.class);
-    System.setOut(out);
+    //System.setOut(out);
     try {
       String[] args = { "-getGroups", "admin" };
       assertEquals(0, rmAdminCLI.run(args));
@@ -391,7 +391,7 @@ public class TestRMAdminCLI {
         }
       }));
     } finally {
-      System.setOut(origOut);
+      //System.setOut(origOut);
     }
   }
 
@@ -488,8 +488,8 @@ public class TestRMAdminCLI {
     PrintStream oldErrPrintStream = System.err;
     ByteArrayOutputStream dataOut = new ByteArrayOutputStream();
     ByteArrayOutputStream dataErr = new ByteArrayOutputStream();
-    System.setOut(new PrintStream(dataOut));
-    System.setErr(new PrintStream(dataErr));
+    //System.setOut(new PrintStream(dataOut));
+    //System.setErr(new PrintStream(dataErr));
     try {
       String[] args = { "-help" };
       assertEquals(0, rmAdminCLI.run(args));
@@ -619,8 +619,8 @@ public class TestRMAdminCLI {
           "messages: %n" + expectedHelpMsg), 
actualHelpMsg.contains(expectedHelpMsg
               ));
     } finally {
-      System.setOut(oldOutPrintStream);
-      System.setErr(oldErrPrintStream);
+      //System.setOut(oldOutPrintStream);
+      //System.setErr(oldErrPrintStream);
     }
   }
 
@@ -628,7 +628,7 @@ public class TestRMAdminCLI {
   public void testException() throws Exception {
     PrintStream oldErrPrintStream = System.err;
     ByteArrayOutputStream dataErr = new ByteArrayOutputStream();
-    System.setErr(new PrintStream(dataErr));
+    //System.setErr(new PrintStream(dataErr));
     try {
       when(admin.refreshQueues(any(RefreshQueuesRequest.class)))
           .thenThrow(new IOException("test exception"));
@@ -638,7 +638,7 @@ public class TestRMAdminCLI {
       verify(admin).refreshQueues(any(RefreshQueuesRequest.class));
       assertTrue(dataErr.toString().contains("refreshQueues: test exception"));
     } finally {
-      System.setErr(oldErrPrintStream);
+      //System.setErr(oldErrPrintStream);
     }
   }
   

http://git-wip-us.apache.org/repos/asf/hadoop/blob/5b580aaa/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestSchedConfCLI.java
----------------------------------------------------------------------
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestSchedConfCLI.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestSchedConfCLI.java
index 5364e83..eba71b4 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestSchedConfCLI.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestSchedConfCLI.java
@@ -49,11 +49,11 @@ public class TestSchedConfCLI {
   public void setUp() {
     sysOutStream = new ByteArrayOutputStream();
     sysOut =  new PrintStream(sysOutStream);
-    System.setOut(sysOut);
+    //System.setOut(sysOut);
 
     sysErrStream = new ByteArrayOutputStream();
     sysErr = new PrintStream(sysErrStream);
-    System.setErr(sysErr);
+    //System.setErr(sysErr);
 
     cli = new SchedConfCLI();
   }

http://git-wip-us.apache.org/repos/asf/hadoop/blob/5b580aaa/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java
----------------------------------------------------------------------
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java
index 0f0c9bf..35b1f9e 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java
@@ -110,7 +110,7 @@ public class TestYarnCLI {
     sysOut = spy(new PrintStream(sysOutStream));
     sysErrStream = new ByteArrayOutputStream();
     sysErr = spy(new PrintStream(sysErrStream));
-    System.setOut(sysOut);
+    //System.setOut(sysOut);
   }
   
   @Test

http://git-wip-us.apache.org/repos/asf/hadoop/blob/5b580aaa/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/logaggregation/filecontroller/ifile/TestLogAggregationIndexFileController.java
----------------------------------------------------------------------
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/logaggregation/filecontroller/ifile/TestLogAggregationIndexFileController.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/logaggregation/filecontroller/ifile/TestLogAggregationIndexFileController.java
index 7d0205b..f789f86 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/logaggregation/filecontroller/ifile/TestLogAggregationIndexFileController.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/logaggregation/filecontroller/ifile/TestLogAggregationIndexFileController.java
@@ -104,11 +104,11 @@ public class TestLogAggregationIndexFileController {
     fs = FileSystem.get(conf);
     sysOutStream = new ByteArrayOutputStream();
     sysOut =  new PrintStream(sysOutStream);
-    System.setOut(sysOut);
+    //System.setOut(sysOut);
 
     sysErrStream = new ByteArrayOutputStream();
     sysErr = new PrintStream(sysErrStream);
-    System.setErr(sysErr);
+    //System.setErr(sysErr);
   }
 
   @After

http://git-wip-us.apache.org/repos/asf/hadoop/blob/5b580aaa/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/test/java/org/apache/hadoop/registry/cli/TestRegistryCli.java
----------------------------------------------------------------------
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/test/java/org/apache/hadoop/registry/cli/TestRegistryCli.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/test/java/org/apache/hadoop/registry/cli/TestRegistryCli.java
index bd8a38d..086a933 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/test/java/org/apache/hadoop/registry/cli/TestRegistryCli.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/test/java/org/apache/hadoop/registry/cli/TestRegistryCli.java
@@ -44,7 +44,7 @@ public class TestRegistryCli extends AbstractRegistryTest {
     sysOut = new PrintStream(sysOutStream);
     sysErrStream = new ByteArrayOutputStream();
     sysErr = new PrintStream(sysErrStream);
-    System.setOut(sysOut);
+    //System.setOut(sysOut);
     cli = new RegistryCli(operations, createRegistryConfiguration(), sysOut, 
sysErr);
   }
 


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