YARN-11228. Fix Some CodeStyle.

Author: slfan1989

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/test/java/org/apache/hadoop/yarn/server/router/webapp/MockDefaultRequestInterceptorREST.java

@@ -36,6 +36,7 @@
 import javax.ws.rs.core.Response.Status;
 
 import org.apache.commons.lang3.EnumUtils;
+import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.security.authorize.AuthorizationException;
 import org.apache.hadoop.util.Sets;
 import org.apache.hadoop.util.StringUtils;
@@ -57,6 +58,12 @@
 import org.apache.hadoop.yarn.exceptions.ApplicationNotFoundException;
 import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.server.federation.store.records.SubClusterId;
+import org.apache.hadoop.yarn.server.resourcemanager.MockNM;
+import org.apache.hadoop.yarn.server.resourcemanager.MockRM;
+import org.apache.hadoop.yarn.server.resourcemanager.MockRMAppSubmitter;
+import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
 import org.apache.hadoop.yarn.server.resourcemanager.webapp.NodeIDsInfo;
 import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.NodeLabelsInfo;
 import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.LabelsToNodesInfo;
@@ -459,9 +466,23 @@ public AppAttemptsInfo getAppAttempts(HttpServletRequest hsr, String appId) {
     }
 
     AppAttemptsInfo infos = new AppAttemptsInfo();
-    org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppAttemptInfo
-         appAttemptInfo1 = new org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppAttemptInfo();
-    infos.add(appAttemptInfo1);
+
+    try {
+      Configuration conf = new Configuration();
+      MockRM rm = new MockRM(conf);
+      rm.start();
+      MockNM amNodeManager = rm.registerNode("127.0.0.1:1234", 2048);
+      RMApp app1 = MockRMAppSubmitter.submitWithMemory(1024, rm);
+      amNodeManager.nodeHeartbeat(true);
+      RMAppAttempt appAttempt = app1.getCurrentAppAttempt();
+      org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppAttemptInfo
+          appAttemptInfo1 = new org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppAttemptInfo(rm,
+          appAttempt, Boolean.TRUE, "user", "http://");
+      infos.add(appAttemptInfo1);
+
+    } catch (Exception e) {
+      throw new RuntimeException("Test getAppAttempts Error.", e);
+    }
 
     return infos;
   }