YARN-11357. Fix CheckStyle.

Author: slfan1989

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/test/java/org/apache/hadoop/yarn/server/router/clientrm/TestFederationClientInterceptorRetry.java

@@ -38,7 +38,6 @@
 import org.apache.hadoop.yarn.api.records.Priority;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.YarnException;
-import org.apache.hadoop.yarn.server.federation.policies.manager.UniformBroadcastPolicyManager;
 import org.apache.hadoop.yarn.server.federation.store.impl.MemoryFederationStateStore;
 import org.apache.hadoop.yarn.server.federation.store.records.ApplicationHomeSubCluster;
 import org.apache.hadoop.yarn.server.federation.store.records.GetApplicationHomeSubClusterRequest;
@@ -290,7 +289,7 @@ public void testSubmitApplicationTwoBadOneGood() throws Exception {
     LOG.info("Test submitApplication with two bad, one good SC.");
     setupCluster(Arrays.asList(bad1, bad2, good));
     final ApplicationId appId =
-       ApplicationId.newInstance(System.currentTimeMillis(), 1);
+        ApplicationId.newInstance(System.currentTimeMillis(), 1);
 
     // Use the TestSequentialRouterPolicy strategy,
     // which will sort the SubClusterId because good=0, bad1=1, bad2=2
@@ -324,7 +323,8 @@ private void checkSubmitSubCluster(ApplicationId appId, SubClusterId expectSubCl
         stateStore.getApplicationHomeSubCluster(getAppRequest);
     Assert.assertNotNull(getAppResponse);
     Assert.assertNotNull(getAppResponse);
-    ApplicationHomeSubCluster responseHomeSubCluster = getAppResponse.getApplicationHomeSubCluster();
+    ApplicationHomeSubCluster responseHomeSubCluster =
+        getAppResponse.getApplicationHomeSubCluster();
     Assert.assertNotNull(responseHomeSubCluster);
     SubClusterId respSubClusterId = responseHomeSubCluster.getHomeSubCluster();
     Assert.assertEquals(expectSubCluster, respSubClusterId);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/test/java/org/apache/hadoop/yarn/server/router/clientrm/TestSequentialRouterPolicy.java

@@ -35,15 +35,15 @@ public class TestSequentialRouterPolicy extends AbstractRouterPolicy {
 
   @Override
   public void reinitialize(FederationPolicyInitializationContext policyContext)
-    throws FederationPolicyInitializationException {
+      throws FederationPolicyInitializationException {
     FederationPolicyInitializationContextValidator.validate(policyContext,
         this.getClass().getCanonicalName());
     setPolicyContext(policyContext);
   }
 
   @Override
   protected SubClusterId chooseSubCluster(String queue,
-    Map<SubClusterId, SubClusterInfo> preSelectSubClusters) throws YarnException {
+      Map<SubClusterId, SubClusterInfo> preSelectSubClusters) throws YarnException {
     /**
       * This strategy is only suitable for testing. We need to obtain subClusters sequentially.
       * We have 3 subClusters, 1 goodSubCluster and 2 badSubClusters.