YARN-11592. Fix CheckStyle.

Author: slfan1989

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestRouterCLI.java

@@ -135,8 +135,8 @@ private DeregisterSubClusterResponse generateAllSubClusterData() {
   public void testHelp() throws Exception {
     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));
 
     String[] args = {"-help"};
     rmAdminCLI.run(args);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-globalpolicygenerator/src/main/java/org/apache/hadoop/yarn/server/globalpolicygenerator/GPGUtils.java

@@ -131,7 +131,6 @@ public static Map<SubClusterIdInfo, Float> createUniformWeights(
     return weights;
   }
 
-  @VisibleForTesting
   public static Client createJerseyClient(Configuration conf) {
     Client client = Client.create();
     int connectTimeOut = (int) conf.getTimeDuration(YarnConfiguration.GPG_WEBAPP_CONNECT_TIMEOUT,