http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/KerberosHelperTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/KerberosHelperTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/KerberosHelperTest.java
index abab90f..b220999 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/KerberosHelperTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/KerberosHelperTest.java
@@ -57,7 +57,6 @@ import javax.persistence.EntityManager;
 import org.apache.ambari.server.AmbariException;
 import org.apache.ambari.server.Role;
 import org.apache.ambari.server.actionmanager.ActionManager;
-import org.apache.ambari.server.actionmanager.HostRoleCommand;
 import org.apache.ambari.server.actionmanager.HostRoleCommandFactory;
 import org.apache.ambari.server.actionmanager.HostRoleCommandFactoryImpl;
 import org.apache.ambari.server.actionmanager.RequestFactory;
@@ -263,7 +262,7 @@ public class KerberosHelperTest extends EasyMockSupport {
     //todo: StageUtils shouldn't be called for this test
     StageUtils.setTopologyManager(topologyManager);
     expect(topologyManager.getPendingHostComponents()).andReturn(
-        Collections.<String, Collection<String>>emptyMap()).anyTimes();
+        Collections.emptyMap()).anyTimes();
 
     StageUtils.setConfiguration(configuration);
     
expect(configuration.getApiSSLAuthentication()).andReturn(false).anyTimes();
@@ -995,14 +994,14 @@ public class KerberosHelperTest extends EasyMockSupport {
     expect(service1.getDesiredStackId()).andReturn(stackId).anyTimes();
     expect(service1.getName()).andReturn("SERVICE1").anyTimes();
     expect(service1.getServiceComponents())
-        .andReturn(Collections.<String, ServiceComponent>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final Service service2 = createNiceMock(Service.class);
     expect(service2.getName()).andReturn("SERVICE2").anyTimes();
     expect(service2.getDesiredStackId()).andReturn(stackId).anyTimes();
     expect(service2.getServiceComponents())
-        .andReturn(Collections.<String, ServiceComponent>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final Map<String, String> kerberosEnvProperties = createMock(Map.class);
@@ -1052,7 +1051,7 @@ public class KerberosHelperTest extends EasyMockSupport {
 
     final AmbariManagementController ambariManagementController = 
injector.getInstance(AmbariManagementController.class);
     
expect(ambariManagementController.findConfigurationTagsWithOverrides(cluster, 
null))
-        .andReturn(Collections.<String, Map<String, String>>emptyMap())
+        .andReturn(Collections.emptyMap())
         .once();
     expect(ambariManagementController.getRoleCommandOrder(cluster))
         .andReturn(createMock(RoleCommandOrder.class))
@@ -1174,14 +1173,14 @@ public class KerberosHelperTest extends EasyMockSupport 
{
     expect(service1.getDesiredStackId()).andReturn(new 
StackId("HDP-2.2")).anyTimes();
     expect(service1.getName()).andReturn("SERVICE1").anyTimes();
     expect(service1.getServiceComponents())
-        .andReturn(Collections.<String, ServiceComponent>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final Service service2 = createNiceMock(Service.class);
     expect(service2.getDesiredStackId()).andReturn(new 
StackId("HDP-2.2")).anyTimes();
     expect(service2.getName()).andReturn("SERVICE2").anyTimes();
     expect(service2.getServiceComponents())
-        .andReturn(Collections.<String, ServiceComponent>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final Map<String, String> kerberosEnvProperties = createMock(Map.class);
@@ -1227,7 +1226,7 @@ public class KerberosHelperTest extends EasyMockSupport {
 
     final AmbariManagementController ambariManagementController = 
injector.getInstance(AmbariManagementController.class);
     
expect(ambariManagementController.findConfigurationTagsWithOverrides(cluster, 
null))
-        .andReturn(Collections.<String, Map<String, String>>emptyMap())
+        .andReturn(Collections.emptyMap())
         .once();
     expect(ambariManagementController.getRoleCommandOrder(cluster))
         .andReturn(createMock(RoleCommandOrder.class))
@@ -1267,35 +1266,35 @@ public class KerberosHelperTest extends EasyMockSupport 
{
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Update Configs Stage
     expect(requestStageContainer.getLastStageId()).andReturn(2L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Destroy Principals Stage
     expect(requestStageContainer.getLastStageId()).andReturn(2L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Delete Keytabs Stage
     expect(requestStageContainer.getLastStageId()).andReturn(2L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Finalize Stage
     expect(requestStageContainer.getLastStageId()).andReturn(3L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
 
     // Cleanup Stage
@@ -1303,7 +1302,7 @@ public class KerberosHelperTest extends EasyMockSupport {
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
 
     replayAll();
@@ -1385,14 +1384,14 @@ public class KerberosHelperTest extends EasyMockSupport 
{
     expect(service1.getDesiredStackId()).andReturn(new 
StackId("HDP-2.2")).anyTimes();
     expect(service1.getName()).andReturn("SERVICE1").anyTimes();
     expect(service1.getServiceComponents())
-        .andReturn(Collections.<String, ServiceComponent>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final Service service2 = createStrictMock(Service.class);
     expect(service2.getDesiredStackId()).andReturn(new 
StackId("HDP-2.2")).anyTimes();
     expect(service2.getName()).andReturn("SERVICE2").anyTimes();
     expect(service2.getServiceComponents())
-        .andReturn(Collections.<String, ServiceComponent>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final Map<String, String> kerberosEnvProperties = createMock(Map.class);
@@ -1443,7 +1442,7 @@ public class KerberosHelperTest extends EasyMockSupport {
 
     final AmbariManagementController ambariManagementController = 
injector.getInstance(AmbariManagementController.class);
     
expect(ambariManagementController.findConfigurationTagsWithOverrides(cluster, 
null))
-        .andReturn(Collections.<String, Map<String, String>>emptyMap())
+        .andReturn(Collections.emptyMap())
         .once();
     expect(ambariManagementController.getRoleCommandOrder(cluster))
         .andReturn(createMock(RoleCommandOrder.class))
@@ -1470,42 +1469,42 @@ public class KerberosHelperTest extends EasyMockSupport 
{
       expect(requestStageContainer.getId()).andReturn(1L).once();
       requestStageContainer.setClusterHostInfo(anyString());
       expectLastCall().once();
-      requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+      requestStageContainer.addStages(EasyMock.anyObject());
       expectLastCall().once();
       // Create Principals Stage
       expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
       expect(requestStageContainer.getId()).andReturn(1L).once();
       requestStageContainer.setClusterHostInfo(anyString());
       expectLastCall().once();
-      requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+      requestStageContainer.addStages(EasyMock.anyObject());
       expectLastCall().once();
       // Create Keytabs Stage
       expect(requestStageContainer.getLastStageId()).andReturn(0L).anyTimes();
       expect(requestStageContainer.getId()).andReturn(1L).once();
       requestStageContainer.setClusterHostInfo(anyString());
       expectLastCall().once();
-      requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+      requestStageContainer.addStages(EasyMock.anyObject());
       expectLastCall().once();
       // Distribute Keytabs Stage
       expect(requestStageContainer.getLastStageId()).andReturn(1L).anyTimes();
       expect(requestStageContainer.getId()).andReturn(1L).once();
       requestStageContainer.setClusterHostInfo(anyString());
       expectLastCall().once();
-      requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+      requestStageContainer.addStages(EasyMock.anyObject());
       expectLastCall().once();
       // Update Configurations Stage
       expect(requestStageContainer.getLastStageId()).andReturn(1L).anyTimes();
       expect(requestStageContainer.getId()).andReturn(1L).once();
       requestStageContainer.setClusterHostInfo(anyString());
       expectLastCall().once();
-      requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+      requestStageContainer.addStages(EasyMock.anyObject());
       expectLastCall().once();
       // Clean-up/Finalize Stage
       expect(requestStageContainer.getLastStageId()).andReturn(3L).anyTimes();
       expect(requestStageContainer.getId()).andReturn(1L).once();
       requestStageContainer.setClusterHostInfo(anyString());
       expectLastCall().once();
-      requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+      requestStageContainer.addStages(EasyMock.anyObject());
       expectLastCall().once();
     } else {
       requestStageContainer = null;
@@ -1556,7 +1555,7 @@ public class KerberosHelperTest extends EasyMockSupport {
     KerberosHelper kerberosHelper = injector.getInstance(KerberosHelper.class);
 
     assertEquals(null, kerberosHelper.getManageIdentitiesDirective(null));
-    assertEquals(null, 
kerberosHelper.getManageIdentitiesDirective(Collections.<String, 
String>emptyMap()));
+    assertEquals(null, 
kerberosHelper.getManageIdentitiesDirective(Collections.emptyMap()));
 
     assertEquals(null, kerberosHelper.getManageIdentitiesDirective(
         new HashMap<String, String>() {
@@ -1618,7 +1617,7 @@ public class KerberosHelperTest extends EasyMockSupport {
     KerberosHelper kerberosHelper = injector.getInstance(KerberosHelper.class);
 
     assertEquals(false, kerberosHelper.getForceToggleKerberosDirective(null));
-    assertEquals(false, 
kerberosHelper.getForceToggleKerberosDirective(Collections.<String, 
String>emptyMap()));
+    assertEquals(false, 
kerberosHelper.getForceToggleKerberosDirective(Collections.emptyMap()));
 
     assertEquals(false, kerberosHelper.getForceToggleKerberosDirective(
         new HashMap<String, String>() {
@@ -1693,15 +1692,15 @@ public class KerberosHelperTest extends EasyMockSupport 
{
 
     final KerberosIdentityDescriptor identityDescriptor1 = 
createMock(KerberosIdentityDescriptor.class);
     
expect(identityDescriptor1.getPrincipalDescriptor()).andReturn(principalDescriptor1).times(1);
-    expect(identityDescriptor1.shouldInclude(EasyMock.<Map<String, 
Object>>anyObject())).andReturn(true).anyTimes();
+    
expect(identityDescriptor1.shouldInclude(EasyMock.anyObject())).andReturn(true).anyTimes();
 
     final KerberosIdentityDescriptor identityDescriptor2 = 
createMock(KerberosIdentityDescriptor.class);
     
expect(identityDescriptor2.getPrincipalDescriptor()).andReturn(principalDescriptor2).times(1);
-    expect(identityDescriptor2.shouldInclude(EasyMock.<Map<String, 
Object>>anyObject())).andReturn(true).anyTimes();
+    
expect(identityDescriptor2.shouldInclude(EasyMock.anyObject())).andReturn(true).anyTimes();
 
     final KerberosIdentityDescriptor identityDescriptor3 = 
createMock(KerberosIdentityDescriptor.class);
     
expect(identityDescriptor3.getPrincipalDescriptor()).andReturn(principalDescriptor3).times(1);
-    expect(identityDescriptor3.shouldInclude(EasyMock.<Map<String, 
Object>>anyObject())).andReturn(true).anyTimes();
+    
expect(identityDescriptor3.shouldInclude(EasyMock.anyObject())).andReturn(true).anyTimes();
 
     final KerberosComponentDescriptor componentDescriptor1 = 
createMockComponentDescriptor(
         "COMPONENT1",
@@ -1713,7 +1712,7 @@ public class KerberosHelperTest extends EasyMockSupport {
         null);
 
     final KerberosServiceDescriptor serviceDescriptor1 = 
createMock(KerberosServiceDescriptor.class);
-    expect(serviceDescriptor1.getIdentities(eq(true), EasyMock.<Map<String, 
Object>>anyObject())).andReturn(Arrays.asList(
+    expect(serviceDescriptor1.getIdentities(eq(true), 
EasyMock.anyObject())).andReturn(Arrays.asList(
         identityDescriptor1,
         identityDescriptor2
     )).times(1);
@@ -1731,7 +1730,7 @@ public class KerberosHelperTest extends EasyMockSupport {
 
     final KerberosDescriptor kerberosDescriptor = 
createMock(KerberosDescriptor.class);
     
expect(kerberosDescriptor.getProperty("additional_realms")).andReturn(null).times(1);
-    expect(kerberosDescriptor.getIdentities(eq(true), EasyMock.<Map<String, 
Object>>anyObject())).andReturn(null).times(1);
+    expect(kerberosDescriptor.getIdentities(eq(true), 
EasyMock.anyObject())).andReturn(null).times(1);
     
expect(kerberosDescriptor.getAuthToLocalProperties()).andReturn(null).times(1);
     
expect(kerberosDescriptor.getService("SERVICE1")).andReturn(serviceDescriptor1).times(1);
 
@@ -1973,7 +1972,7 @@ public class KerberosHelperTest extends EasyMockSupport {
             put("COMPONENT2B", componentDescriptor2b);
           }
         },
-        Collections.<KerberosIdentityDescriptor>emptyList());
+        Collections.emptyList());
     
expect(serviceDescriptor2.getComponent("COMPONENT2A")).andReturn(componentDescriptor2a).times(2);
     
expect(serviceDescriptor2.getComponent("COMPONENT2B")).andReturn(componentDescriptor2b).times(2);
 
@@ -1984,7 +1983,7 @@ public class KerberosHelperTest extends EasyMockSupport {
             put("COMPONENT3A", componentDescriptor3a);
           }
         },
-        Collections.<KerberosIdentityDescriptor>emptyList());
+        Collections.emptyList());
     
expect(serviceDescriptor3.getComponent("COMPONENT3A")).andReturn(componentDescriptor3a).times(4);
 
     final Map<String, String> kerberosDescriptorProperties = new HashMap<>();
@@ -1996,7 +1995,7 @@ public class KerberosHelperTest extends EasyMockSupport {
     
expect(kerberosDescriptor.getService("SERVICE2")).andReturn(serviceDescriptor2).atLeastOnce();
     
expect(kerberosDescriptor.getService("SERVICE3")).andReturn(serviceDescriptor3).atLeastOnce();
     
expect(kerberosDescriptor.getProperty("additional_realms")).andReturn(null).atLeastOnce();
-    expect(kerberosDescriptor.getIdentities(eq(true), EasyMock.<Map<String, 
Object>>anyObject())).andReturn(null).atLeastOnce();
+    expect(kerberosDescriptor.getIdentities(eq(true), 
EasyMock.anyObject())).andReturn(null).atLeastOnce();
     
expect(kerberosDescriptor.getAuthToLocalProperties()).andReturn(Collections.singleton("core-site/auth.to.local")).atLeastOnce();
 
     setupKerberosDescriptor(kerberosDescriptor);
@@ -2098,7 +2097,7 @@ public class KerberosHelperTest extends EasyMockSupport {
     expect(cluster.getService("SERVICE1")).andReturn(service1).atLeastOnce();
     expect(cluster.getService("SERVICE2")).andReturn(service2).atLeastOnce();
     expect(cluster.getService("SERVICE3")).andReturn(service3).atLeastOnce();
-    
expect(cluster.getServiceComponentHostMap(EasyMock.<Set<String>>anyObject(), 
EasyMock.<Set<String>>anyObject())).andReturn(serviceComponentHostMap).anyTimes();
+    expect(cluster.getServiceComponentHostMap(EasyMock.anyObject(), 
EasyMock.anyObject())).andReturn(serviceComponentHostMap).anyTimes();
 
     final Map<String, Map<String, String>> existingConfigurations = new 
HashMap<String, Map<String, String>>() {
       {
@@ -2450,20 +2449,20 @@ public class KerberosHelperTest extends EasyMockSupport 
{
     Capture<? extends String> capturePrincipalForKeytab = 
newCapture(CaptureType.ALL);
 
     CreatePrincipalsServerAction createPrincipalsServerAction = 
injector.getInstance(CreatePrincipalsServerAction.class);
-    
expect(createPrincipalsServerAction.createPrincipal(capture(capturePrincipal), 
eq(false), EasyMock.<Map<String, String>>anyObject(), 
anyObject(KerberosOperationHandler.class), eq(false), isNull(ActionLog.class)))
+    
expect(createPrincipalsServerAction.createPrincipal(capture(capturePrincipal), 
eq(false), EasyMock.anyObject(), anyObject(KerberosOperationHandler.class), 
eq(false), isNull(ActionLog.class)))
         .andReturn(new 
CreatePrincipalsServerAction.CreatePrincipalResult("anything", "password", 1))
         .times(3);
 
     if(createAmbariIdentities) {
       if (ambariServerPrincipalAsService) {
-        
expect(createPrincipalsServerAction.createPrincipal(capture(capturePrincipal), 
eq(true), EasyMock.<Map<String, String>>anyObject(), 
anyObject(KerberosOperationHandler.class), eq(false), isNull(ActionLog.class)))
+        
expect(createPrincipalsServerAction.createPrincipal(capture(capturePrincipal), 
eq(true), EasyMock.anyObject(), anyObject(KerberosOperationHandler.class), 
eq(false), isNull(ActionLog.class)))
             .andReturn(new 
CreatePrincipalsServerAction.CreatePrincipalResult("anything", "password", 1))
             .times(2);
       } else {
-        
expect(createPrincipalsServerAction.createPrincipal(capture(capturePrincipal), 
eq(true), EasyMock.<Map<String, String>>anyObject(), 
anyObject(KerberosOperationHandler.class), eq(false), isNull(ActionLog.class)))
+        
expect(createPrincipalsServerAction.createPrincipal(capture(capturePrincipal), 
eq(true), EasyMock.anyObject(), anyObject(KerberosOperationHandler.class), 
eq(false), isNull(ActionLog.class)))
             .andReturn(new 
CreatePrincipalsServerAction.CreatePrincipalResult("anything", "password", 1))
             .times(1);
-        
expect(createPrincipalsServerAction.createPrincipal(capture(capturePrincipal), 
eq(false), EasyMock.<Map<String, String>>anyObject(), 
anyObject(KerberosOperationHandler.class), eq(false), isNull(ActionLog.class)))
+        
expect(createPrincipalsServerAction.createPrincipal(capture(capturePrincipal), 
eq(false), EasyMock.anyObject(), anyObject(KerberosOperationHandler.class), 
eq(false), isNull(ActionLog.class)))
             .andReturn(new 
CreatePrincipalsServerAction.CreatePrincipalResult("anything", "password", 1))
             .times(1);
       }
@@ -2600,7 +2599,7 @@ public class KerberosHelperTest extends EasyMockSupport {
   private void setupKerberosDescriptor(KerberosDescriptor kerberosDescriptor) 
throws Exception {
     // cluster.getCurrentStackVersion expectation is already specified in main 
test method
     expect(metaInfo.getKerberosDescriptor("HDP", 
"2.2")).andReturn(kerberosDescriptor).anyTimes();
-    expect(kerberosDescriptor.principals()).andReturn(Collections.<String, 
String>emptyMap()).anyTimes();
+    
expect(kerberosDescriptor.principals()).andReturn(Collections.emptyMap()).anyTimes();
   }
 
   private void setupStageFactory() {
@@ -2614,7 +2613,7 @@ public class KerberosHelperTest extends EasyMockSupport {
             Stage stage = createNiceMock(Stage.class);
 
             expect(stage.getHostRoleCommands())
-                .andReturn(Collections.<String, Map<String, 
HostRoleCommand>>emptyMap())
+                .andReturn(Collections.emptyMap())
                 .anyTimes();
             replay(stage);
             return stage;
@@ -2696,14 +2695,14 @@ public class KerberosHelperTest extends EasyMockSupport 
{
     expect(service1.getDesiredStackId()).andReturn(new 
StackId("HDP-2.2")).anyTimes();
     expect(service1.getName()).andReturn("SERVICE1").anyTimes();
     expect(service1.getServiceComponents())
-        .andReturn(Collections.<String, ServiceComponent>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final Service service2 = createStrictMock(Service.class);
     expect(service2.getDesiredStackId()).andReturn(new 
StackId("HDP-2.2")).anyTimes();
     expect(service2.getName()).andReturn("SERVICE2").anyTimes();
     expect(service2.getServiceComponents())
-        .andReturn(Collections.<String, ServiceComponent>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final Map<String, String> kerberosEnvProperties = createMock(Map.class);
@@ -2794,7 +2793,7 @@ public class KerberosHelperTest extends EasyMockSupport {
 
     final AmbariManagementController ambariManagementController = 
injector.getInstance(AmbariManagementController.class);
     
expect(ambariManagementController.findConfigurationTagsWithOverrides(cluster, 
null))
-        .andReturn(Collections.<String, Map<String, String>>emptyMap())
+        .andReturn(Collections.emptyMap())
         .times(3);
     expect(ambariManagementController.getRoleCommandOrder(cluster))
         .andReturn(createMock(RoleCommandOrder.class))
@@ -2864,42 +2863,42 @@ public class KerberosHelperTest extends EasyMockSupport 
{
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Getting missing keytabs
     expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Create Principals Stage
     expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Create Keytabs Stage
     expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Distribute Keytabs Stage
     expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Clean-up/Finalize Stage
     expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
 
     replayAll();
@@ -2962,14 +2961,14 @@ public class KerberosHelperTest extends EasyMockSupport 
{
     expect(service1.getDesiredStackId()).andReturn(new 
StackId("HDP-2.2")).anyTimes();
     expect(service1.getName()).andReturn("SERVICE1").anyTimes();
     expect(service1.getServiceComponents())
-        .andReturn(Collections.<String, ServiceComponent>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final Service service2 = createStrictMock(Service.class);
     expect(service2.getDesiredStackId()).andReturn(new 
StackId("HDP-2.2")).anyTimes();
     expect(service2.getName()).andReturn("SERVICE2").anyTimes();
     expect(service2.getServiceComponents())
-        .andReturn(Collections.<String, ServiceComponent>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final Map<String, String> kerberosEnvProperties = createMock(Map.class);
@@ -3017,7 +3016,7 @@ public class KerberosHelperTest extends EasyMockSupport {
 
     final AmbariManagementController ambariManagementController = 
injector.getInstance(AmbariManagementController.class);
     
expect(ambariManagementController.findConfigurationTagsWithOverrides(cluster, 
null))
-        .andReturn(Collections.<String, Map<String, String>>emptyMap())
+        .andReturn(Collections.emptyMap())
         .once();
     expect(ambariManagementController.getRoleCommandOrder(cluster))
         .andReturn(createMock(RoleCommandOrder.class))
@@ -3077,28 +3076,28 @@ public class KerberosHelperTest extends EasyMockSupport 
{
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Delete Principals Stage
     expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Delete Keytabs Stage
     expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Clean-up/Finalize Stage
     expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
 
     replayAll();
@@ -3178,14 +3177,14 @@ public class KerberosHelperTest extends EasyMockSupport 
{
       expect(service1.getDesiredStackId()).andReturn(new 
StackId("HDP-2.2")).anyTimes();
       expect(service1.getName()).andReturn("SERVICE1").anyTimes();
       expect(service1.getServiceComponents())
-          .andReturn(Collections.<String, ServiceComponent>emptyMap())
+          .andReturn(Collections.emptyMap())
           .anyTimes();
 
       final Service service2 = createNiceMock(Service.class);
       expect(service2.getDesiredStackId()).andReturn(new 
StackId("HDP-2.2")).anyTimes();
       expect(service2.getName()).andReturn("SERVICE2").anyTimes();
       expect(service2.getServiceComponents())
-          .andReturn(Collections.<String, ServiceComponent>emptyMap())
+          .andReturn(Collections.emptyMap())
           .anyTimes();
 
 
@@ -3228,14 +3227,14 @@ public class KerberosHelperTest extends EasyMockSupport 
{
 
       final AmbariManagementController ambariManagementController = 
injector.getInstance(AmbariManagementController.class);
       
expect(ambariManagementController.findConfigurationTagsWithOverrides(cluster, 
null))
-          .andReturn(Collections.<String, Map<String, String>>emptyMap())
+          .andReturn(Collections.emptyMap())
           .once();
       expect(ambariManagementController.getRoleCommandOrder(cluster))
           .andReturn(createMock(RoleCommandOrder.class))
           .once();
 
       final ConfigHelper configHelper = 
injector.getInstance(ConfigHelper.class);
-      
expect(configHelper.getEffectiveConfigProperties(anyObject(Cluster.class), 
EasyMock.<Map<String, Map<String, String>>>anyObject()))
+      
expect(configHelper.getEffectiveConfigProperties(anyObject(Cluster.class), 
EasyMock.anyObject()))
           .andReturn(new HashMap<String, Map<String, String>>() {
             {
               put("cluster-env", new HashMap<String, String>() {{
@@ -3256,14 +3255,14 @@ public class KerberosHelperTest extends EasyMockSupport 
{
       expect(requestStageContainer.getId()).andReturn(1L).once();
       requestStageContainer.setClusterHostInfo(anyString());
       expectLastCall().once();
-      requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+      requestStageContainer.addStages(EasyMock.anyObject());
       expectLastCall().once();
       // Getting missing keytabs
       expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
       expect(requestStageContainer.getId()).andReturn(1L).once();
       requestStageContainer.setClusterHostInfo(anyString());
       expectLastCall().once();
-      requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+      requestStageContainer.addStages(EasyMock.anyObject());
       expectLastCall().once();
       // Create Principals Stage
       expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
@@ -3271,28 +3270,28 @@ public class KerberosHelperTest extends EasyMockSupport 
{
       requestStageContainer.setClusterHostInfo(anyString());
       expectLastCall().once();
 
-      requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+      requestStageContainer.addStages(EasyMock.anyObject());
       expectLastCall().once();
       // Create Keytabs Stage
       expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
       expect(requestStageContainer.getId()).andReturn(1L).once();
       requestStageContainer.setClusterHostInfo(anyString());
       expectLastCall().once();
-      requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+      requestStageContainer.addStages(EasyMock.anyObject());
       expectLastCall().once();
       // Distribute Keytabs Stage
       expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
       expect(requestStageContainer.getId()).andReturn(1L).once();
       requestStageContainer.setClusterHostInfo(anyString());
       expectLastCall().once();
-      requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+      requestStageContainer.addStages(EasyMock.anyObject());
       expectLastCall().once();
       // Clean-up/Finalize Stage
       expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
       expect(requestStageContainer.getId()).andReturn(1L).once();
       requestStageContainer.setClusterHostInfo(anyString());
       expectLastCall().once();
-      requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+      requestStageContainer.addStages(EasyMock.anyObject());
       expectLastCall().once();
     }
 
@@ -3359,14 +3358,14 @@ public class KerberosHelperTest extends EasyMockSupport 
{
     expect(service1.getDesiredStackId()).andReturn(new 
StackId("HDP-2.2")).anyTimes();
     expect(service1.getName()).andReturn("SERVICE1").anyTimes();
     expect(service1.getServiceComponents())
-        .andReturn(Collections.<String, ServiceComponent>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final Service service2 = createNiceMock(Service.class);
     expect(service2.getDesiredStackId()).andReturn(new 
StackId("HDP-2.2")).anyTimes();
     expect(service2.getName()).andReturn("SERVICE2").anyTimes();
     expect(service2.getServiceComponents())
-        .andReturn(Collections.<String, ServiceComponent>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final Map<String, String> kerberosEnvProperties = createMock(Map.class);
@@ -3408,14 +3407,14 @@ public class KerberosHelperTest extends EasyMockSupport 
{
 
     final AmbariManagementController ambariManagementController = 
injector.getInstance(AmbariManagementController.class);
     
expect(ambariManagementController.findConfigurationTagsWithOverrides(cluster, 
null))
-        .andReturn(Collections.<String, Map<String, String>>emptyMap())
+        .andReturn(Collections.emptyMap())
         .once();
     expect(ambariManagementController.getRoleCommandOrder(cluster))
         .andReturn(createMock(RoleCommandOrder.class))
         .once();
 
     final ConfigHelper configHelper = injector.getInstance(ConfigHelper.class);
-    expect(configHelper.getEffectiveConfigProperties(anyObject(Cluster.class), 
EasyMock.<Map<String, Map<String, String>>>anyObject()))
+    expect(configHelper.getEffectiveConfigProperties(anyObject(Cluster.class), 
EasyMock.anyObject()))
         .andReturn(new HashMap<String, Map<String, String>>() {
           {
             put("cluster-env", new HashMap<String, String>() {
@@ -3440,28 +3439,28 @@ public class KerberosHelperTest extends EasyMockSupport 
{
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Delete Principals Stage
     expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Delete Keytabs Stage
     expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
     // Clean-up/Finalize Stage
     expect(requestStageContainer.getLastStageId()).andReturn(-1L).anyTimes();
     expect(requestStageContainer.getId()).andReturn(1L).once();
     requestStageContainer.setClusterHostInfo(anyString());
     expectLastCall().once();
-    requestStageContainer.addStages(EasyMock.<List<Stage>>anyObject());
+    requestStageContainer.addStages(EasyMock.anyObject());
     expectLastCall().once();
 
     replayAll();
@@ -3533,14 +3532,14 @@ public class KerberosHelperTest extends EasyMockSupport 
{
     expect(service1.getDesiredStackId()).andReturn(new 
StackId("HDP-2.2")).anyTimes();
     expect(service1.getName()).andReturn("SERVICE1").anyTimes();
     expect(service1.getServiceComponents())
-        .andReturn(Collections.<String, ServiceComponent>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final Service service2 = createNiceMock(Service.class);
     expect(service2.getDesiredStackId()).andReturn(new 
StackId("HDP-2.2")).anyTimes();
     expect(service2.getName()).andReturn("SERVICE2").anyTimes();
     expect(service2.getServiceComponents())
-        .andReturn(Collections.<String, ServiceComponent>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final Map<String, Host> hostMap = new HashMap<String, Host>() {
@@ -3574,7 +3573,7 @@ public class KerberosHelperTest extends EasyMockSupport {
         })
         .anyTimes();
     
expect(cluster.getServiceComponentHosts(InetAddress.getLocalHost().getCanonicalHostName().toLowerCase()))
-        .andReturn(new ArrayList<ServiceComponentHost>())
+        .andReturn(new ArrayList<>())
         .anyTimes();
 
     final Map<String, String> kerberosEnvProperties = new HashMap<String, 
String>() {
@@ -3630,17 +3629,17 @@ public class KerberosHelperTest extends EasyMockSupport 
{
 
     final AmbariManagementController ambariManagementController = 
injector.getInstance(AmbariManagementController.class);
     
expect(ambariManagementController.findConfigurationTagsWithOverrides(cluster, 
"host1"))
-        .andReturn(Collections.<String, Map<String, String>>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
     
expect(ambariManagementController.findConfigurationTagsWithOverrides(cluster, 
"host2"))
-        .andReturn(Collections.<String, Map<String, String>>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
     
expect(ambariManagementController.findConfigurationTagsWithOverrides(cluster, 
null))
-        .andReturn(Collections.<String, Map<String, String>>emptyMap())
+        .andReturn(Collections.emptyMap())
         .anyTimes();
 
     final ConfigHelper configHelper = injector.getInstance(ConfigHelper.class);
-    expect(configHelper.getEffectiveConfigProperties(anyObject(Cluster.class), 
EasyMock.<Map<String, Map<String, String>>>anyObject()))
+    expect(configHelper.getEffectiveConfigProperties(anyObject(Cluster.class), 
EasyMock.anyObject()))
         .andReturn(new HashMap<String, Map<String, String>>() {
           {
             put("cluster-env", new HashMap<String, String>() {{
@@ -3700,7 +3699,7 @@ public class KerberosHelperTest extends EasyMockSupport {
     expect(identityDescriptor1.getReference()).andReturn(null).anyTimes();
     
expect(identityDescriptor1.getPrincipalDescriptor()).andReturn(principalDescriptor1).anyTimes();
     
expect(identityDescriptor1.getKeytabDescriptor()).andReturn(keytabDescriptor1).anyTimes();
-    expect(identityDescriptor1.shouldInclude(EasyMock.<Map<String, 
Object>>anyObject())).andReturn(true).anyTimes();
+    
expect(identityDescriptor1.shouldInclude(EasyMock.anyObject())).andReturn(true).anyTimes();
     expect(identityDescriptor1.getWhen()).andReturn(null).anyTimes();
 
     final KerberosIdentityDescriptor identityDescriptor2 = 
createMock(KerberosIdentityDescriptor.class);
@@ -3708,7 +3707,7 @@ public class KerberosHelperTest extends EasyMockSupport {
     expect(identityDescriptor2.getReference()).andReturn(null).anyTimes();
     
expect(identityDescriptor2.getPrincipalDescriptor()).andReturn(principalDescriptor2).anyTimes();
     
expect(identityDescriptor2.getKeytabDescriptor()).andReturn(keytabDescriptor2).anyTimes();
-    expect(identityDescriptor2.shouldInclude(EasyMock.<Map<String, 
Object>>anyObject())).andReturn(true).anyTimes();
+    
expect(identityDescriptor2.shouldInclude(EasyMock.anyObject())).andReturn(true).anyTimes();
     expect(identityDescriptor2.getWhen()).andReturn(null).anyTimes();
 
     final KerberosIdentityDescriptor identityDescriptorService1 = 
createMock(KerberosIdentityDescriptor.class);
@@ -3716,22 +3715,22 @@ public class KerberosHelperTest extends EasyMockSupport 
{
     
expect(identityDescriptorService1.getReference()).andReturn(null).anyTimes();
     
expect(identityDescriptorService1.getPrincipalDescriptor()).andReturn(principalDescriptorService1).anyTimes();
     
expect(identityDescriptorService1.getKeytabDescriptor()).andReturn(keytabDescriptorService1).anyTimes();
-    expect(identityDescriptorService1.shouldInclude(EasyMock.<Map<String, 
Object>>anyObject())).andReturn(true).anyTimes();
+    
expect(identityDescriptorService1.shouldInclude(EasyMock.anyObject())).andReturn(true).anyTimes();
     expect(identityDescriptorService1.getWhen()).andReturn(null).anyTimes();
 
     final KerberosComponentDescriptor componentDescriptor1 = 
createMock(KerberosComponentDescriptor.class);
-    expect(componentDescriptor1.getIdentities(eq(true), EasyMock.<Map<String, 
Object>>anyObject())).andReturn(Collections.singletonList(identityDescriptor1)).anyTimes();
+    expect(componentDescriptor1.getIdentities(eq(true), 
EasyMock.anyObject())).andReturn(Collections.singletonList(identityDescriptor1)).anyTimes();
 
     final KerberosComponentDescriptor componentDescriptor2 = 
createMock(KerberosComponentDescriptor.class);
-    expect(componentDescriptor2.getIdentities(eq(true), EasyMock.<Map<String, 
Object>>anyObject())).andReturn(Collections.singletonList(identityDescriptor2)).anyTimes();
+    expect(componentDescriptor2.getIdentities(eq(true), 
EasyMock.anyObject())).andReturn(Collections.singletonList(identityDescriptor2)).anyTimes();
 
     final KerberosServiceDescriptor serviceDescriptor1 = 
createMock(KerberosServiceDescriptor.class);
     
expect(serviceDescriptor1.getComponent("COMPONENT1")).andReturn(componentDescriptor1).anyTimes();
-    expect(serviceDescriptor1.getIdentities(eq(true), EasyMock.<Map<String, 
Object>>anyObject())).andReturn(Collections.singletonList(identityDescriptorService1)).anyTimes();
+    expect(serviceDescriptor1.getIdentities(eq(true), 
EasyMock.anyObject())).andReturn(Collections.singletonList(identityDescriptorService1)).anyTimes();
 
     final KerberosServiceDescriptor serviceDescriptor2 = 
createMock(KerberosServiceDescriptor.class);
     
expect(serviceDescriptor2.getComponent("COMPONENT2")).andReturn(componentDescriptor2).anyTimes();
-    expect(serviceDescriptor2.getIdentities(eq(true), EasyMock.<Map<String, 
Object>>anyObject())).andReturn(null).anyTimes();
+    expect(serviceDescriptor2.getIdentities(eq(true), 
EasyMock.anyObject())).andReturn(null).anyTimes();
 
     final KerberosDescriptor kerberosDescriptor = 
createMock(KerberosDescriptor.class);
     expect(kerberosDescriptor.getProperties()).andReturn(new HashMap<String, 
String>() {
@@ -3802,7 +3801,7 @@ public class KerberosHelperTest extends EasyMockSupport {
 
     List<KerberosIdentityDescriptor> identities = (createAmbariIdentities)
         ? kerberosHelper.getAmbariServerIdentities(kerberosDescriptor)
-        : new ArrayList<KerberosIdentityDescriptor>();
+        : new ArrayList<>();
 
     verifyAll();
 
@@ -3849,7 +3848,7 @@ public class KerberosHelperTest extends EasyMockSupport {
     KerberosServiceDescriptor descriptor = 
createMock(KerberosServiceDescriptor.class);
     expect(descriptor.getName()).andReturn(serviceName).anyTimes();
     expect(descriptor.getComponents()).andReturn(componentMap).anyTimes();
-    expect(descriptor.getIdentities(eq(true), EasyMock.<Map<String, 
Object>>anyObject())).andReturn(identities).anyTimes();
+    expect(descriptor.getIdentities(eq(true), 
EasyMock.anyObject())).andReturn(identities).anyTimes();
     expect(descriptor.getAuthToLocalProperties()).andReturn(null).anyTimes();
     return descriptor;
   }
@@ -3870,7 +3869,7 @@ public class KerberosHelperTest extends EasyMockSupport {
       throws AmbariException {
     KerberosComponentDescriptor descriptor = 
createMock(KerberosComponentDescriptor.class);
     expect(descriptor.getName()).andReturn(componentName).anyTimes();
-    expect(descriptor.getIdentities(eq(true), EasyMock.<Map<String, 
Object>>anyObject())).andReturn(identities).anyTimes();
+    expect(descriptor.getIdentities(eq(true), 
EasyMock.anyObject())).andReturn(identities).anyTimes();
     
expect(descriptor.getConfigurations(true)).andReturn(configurations).anyTimes();
     expect(descriptor.getAuthToLocalProperties()).andReturn(null).anyTimes();
     return descriptor;

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/RefreshYarnCapacitySchedulerReleaseConfigTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/RefreshYarnCapacitySchedulerReleaseConfigTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/RefreshYarnCapacitySchedulerReleaseConfigTest.java
index c7599bb..ef186f1 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/RefreshYarnCapacitySchedulerReleaseConfigTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/RefreshYarnCapacitySchedulerReleaseConfigTest.java
@@ -102,7 +102,7 @@ public class RefreshYarnCapacitySchedulerReleaseConfigTest {
     // Start
     ClusterRequest cr = new ClusterRequest(cluster.getClusterId(), "c1", 
cluster.getDesiredStackVersion().getStackVersion(), null);
 
-    cr.setDesiredConfig(Collections.singletonList(new 
ConfigurationRequest("c1","capacity-scheduler","version2",new HashMap<String, 
String>(), null)));
+    cr.setDesiredConfig(Collections.singletonList(new 
ConfigurationRequest("c1","capacity-scheduler","version2", new HashMap<>(), 
null)));
 
     controller.updateClusters(Collections.singleton(cr) , null);
 
@@ -123,7 +123,7 @@ public class RefreshYarnCapacitySchedulerReleaseConfigTest {
     // Start
     ClusterRequest cr = new ClusterRequest(cluster.getClusterId(), "c1", 
cluster.getDesiredStackVersion().getStackVersion(), null);
 
-    cr.setDesiredConfig(Collections.singletonList(new 
ConfigurationRequest("c1","core-site","version2",new HashMap<String, 
String>(),null)));
+    cr.setDesiredConfig(Collections.singletonList(new 
ConfigurationRequest("c1","core-site","version2", new HashMap<>(),null)));
 
     controller.updateClusters(Collections.singleton(cr) , null);
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/RootServiceResponseFactoryTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/RootServiceResponseFactoryTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/RootServiceResponseFactoryTest.java
index 61a5ed6..c27ef7e 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/RootServiceResponseFactoryTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/RootServiceResponseFactoryTest.java
@@ -142,7 +142,7 @@ public class RootServiceResponseFactoryTest {
       } else {
         assertTrue(rootServiceComponents.contains(new 
RootServiceComponentResponse(
             serviceName, component.name(), 
RootServiceResponseFactory.NOT_APPLICABLE,
-            Collections.<String, String> emptyMap())));
+            Collections.emptyMap())));
       }
     }
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ActiveWidgetLayoutResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ActiveWidgetLayoutResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ActiveWidgetLayoutResourceProviderTest.java
index 4dc06b9..5221ecf 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ActiveWidgetLayoutResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ActiveWidgetLayoutResourceProviderTest.java
@@ -60,7 +60,6 @@ import org.apache.ambari.server.orm.dao.WidgetDAO;
 import org.apache.ambari.server.orm.dao.WidgetLayoutDAO;
 import org.apache.ambari.server.orm.entities.UserEntity;
 import org.apache.ambari.server.orm.entities.WidgetLayoutEntity;
-import org.apache.ambari.server.orm.entities.WidgetLayoutUserWidgetEntity;
 import org.apache.ambari.server.scheduler.ExecutionScheduler;
 import org.apache.ambari.server.security.TestAuthenticationFactory;
 import org.apache.ambari.server.security.authorization.AuthorizationException;
@@ -360,7 +359,7 @@ public class ActiveWidgetLayoutResourceProviderTest extends 
EasyMockSupport {
     expect(widgetLayoutEntity.getScope()).andReturn("CLUSTER").anyTimes();
     expect(widgetLayoutEntity.getDisplayName()).andReturn("display name" + 
id).anyTimes();
     expect(widgetLayoutEntity.getClusterId()).andReturn(2L).anyTimes();
-    
expect(widgetLayoutEntity.getListWidgetLayoutUserWidgetEntity()).andReturn(Collections.<WidgetLayoutUserWidgetEntity>emptyList()).anyTimes();
+    
expect(widgetLayoutEntity.getListWidgetLayoutUserWidgetEntity()).andReturn(Collections.emptyList()).anyTimes();
     return widgetLayoutEntity;
   }
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertDefinitionResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertDefinitionResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertDefinitionResourceProviderTest.java
index 3c43057..3ef2c48 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertDefinitionResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertDefinitionResourceProviderTest.java
@@ -428,7 +428,7 @@ public class AlertDefinitionResourceProviderTest {
     // creating a single definition should invalidate hosts of the definition
     expect(
         
definitionHash.invalidateHosts(EasyMock.anyObject(AlertDefinitionEntity.class))).andReturn(
-        new HashSet<String>()).once();
+      new HashSet<>()).once();
 
     replay(amc, clusters, cluster, dao, definitionHash);
 
@@ -578,7 +578,7 @@ public class AlertDefinitionResourceProviderTest {
     // updateing a single definition should invalidate hosts of the definition
     expect(
         
definitionHash.invalidateHosts(EasyMock.anyObject(AlertDefinitionEntity.class))).andReturn(
-        new HashSet<String>()).atLeastOnce();
+      new HashSet<>()).atLeastOnce();
 
     replay(amc, clusters, cluster, dao, definitionHash);
 
@@ -712,7 +712,7 @@ public class AlertDefinitionResourceProviderTest {
 
     // updateing a single definition should invalidate hosts of the definition
     
expect(definitionHash.invalidateHosts(EasyMock.anyObject(AlertDefinitionEntity.class))).andReturn(
-        new HashSet<String>()).atLeastOnce();
+      new HashSet<>()).atLeastOnce();
 
     replay(amc, clusters, cluster, dao, definitionHash);
 
@@ -796,7 +796,7 @@ public class AlertDefinitionResourceProviderTest {
     // deleting a single definition should invalidate hosts of the definition
     expect(
         
definitionHash.invalidateHosts(EasyMock.anyObject(AlertDefinitionEntity.class))).andReturn(
-        new HashSet<String>()).atLeastOnce();
+      new HashSet<>()).atLeastOnce();
 
     replay(amc, clusters, cluster, dao, definitionHash);
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertGroupResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertGroupResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertGroupResourceProviderTest.java
index 87e802a..de9cba4 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertGroupResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertGroupResourceProviderTest.java
@@ -543,7 +543,7 @@ public class AlertGroupResourceProviderTest {
     List<AlertTargetEntity> targetEntities = new ArrayList<>();
     targetEntities.addAll(getMockTargets());
 
-    m_dao.createGroups(EasyMock.<List<AlertGroupEntity>>anyObject());
+    m_dao.createGroups(EasyMock.anyObject());
     expectLastCall().times(1);
 
     AlertGroupEntity group = new AlertGroupEntity();

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertHistoryResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertHistoryResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertHistoryResourceProviderTest.java
index 852bc01..81b35fa 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertHistoryResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertHistoryResourceProviderTest.java
@@ -124,7 +124,7 @@ public class AlertHistoryResourceProviderTest {
         "AlertHistory/cluster_name", "AlertHistory/id");
 
     
expect(m_dao.findAll(EasyMock.anyObject(AlertHistoryRequest.class))).andReturn(
-        Collections.<AlertHistoryEntity>emptyList());
+        Collections.emptyList());
 
     replay(m_dao);
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertNoticeResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertNoticeResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertNoticeResourceProviderTest.java
index 5fba744..82efb14 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertNoticeResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AlertNoticeResourceProviderTest.java
@@ -128,7 +128,7 @@ public class AlertNoticeResourceProviderTest {
         "AlertHistory/cluster_name", "AlertHistory/id");
 
     
expect(m_dao.findAllNotices(EasyMock.anyObject(AlertNoticeRequest.class))).andReturn(
-        Collections.<AlertNoticeEntity>emptyList());
+        Collections.emptyList());
 
     replay(m_dao);
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AmbariPrivilegeResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AmbariPrivilegeResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AmbariPrivilegeResourceProviderTest.java
index d177d9f..01bfd95 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AmbariPrivilegeResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/AmbariPrivilegeResourceProviderTest.java
@@ -274,7 +274,7 @@ public class AmbariPrivilegeResourceProviderTest extends 
EasyMockSupport {
     expect(privilegeDAO.findAll()).andReturn(privilegeEntities).atLeastOnce();
 
     UserDAO userDAO = injector.getInstance(UserDAO.class);
-    
expect(userDAO.findUsersByPrincipal(EasyMock.<List<PrincipalEntity>>anyObject())).andReturn(userEntities).atLeastOnce();
+    
expect(userDAO.findUsersByPrincipal(EasyMock.anyObject())).andReturn(userEntities).atLeastOnce();
 
     replayAll();
 
@@ -556,7 +556,7 @@ public class AmbariPrivilegeResourceProviderTest extends 
EasyMockSupport {
     
expect(principalDAO.merge(principalEntity)).andReturn(principalEntity).once();
 
     ClusterDAO clusterDAO = injector.getInstance(ClusterDAO.class);
-    
expect(clusterDAO.findAll()).andReturn(Collections.<ClusterEntity>emptyList()).atLeastOnce();
+    
expect(clusterDAO.findAll()).andReturn(Collections.emptyList()).atLeastOnce();
 
     ResourceDAO resourceDAO = injector.getInstance(ResourceDAO.class);
     
expect(resourceDAO.findById(1L)).andReturn(clusterResourceEntity).atLeastOnce();
@@ -613,7 +613,7 @@ public class AmbariPrivilegeResourceProviderTest extends 
EasyMockSupport {
     
expect(userDAO.findUsersByPrincipal(principalEntities)).andReturn(userEntities).atLeastOnce();
 
     ClusterDAO clusterDAO = injector.getInstance(ClusterDAO.class);
-    
expect(clusterDAO.findAll()).andReturn(Collections.<ClusterEntity>emptyList()).atLeastOnce();
+    
expect(clusterDAO.findAll()).andReturn(Collections.emptyList()).atLeastOnce();
 
     replayAll();
 
@@ -727,7 +727,7 @@ public class AmbariPrivilegeResourceProviderTest extends 
EasyMockSupport {
     
expect(principalDAO.merge(principalEntity2)).andReturn(principalEntity2).atLeastOnce();
 
     ClusterDAO clusterDAO = injector.getInstance(ClusterDAO.class);
-    
expect(clusterDAO.findAll()).andReturn(Collections.<ClusterEntity>emptyList()).atLeastOnce();
+    
expect(clusterDAO.findAll()).andReturn(Collections.emptyList()).atLeastOnce();
 
     ResourceDAO resourceDAO = injector.getInstance(ResourceDAO.class);
     
expect(resourceDAO.findById(1L)).andReturn(clusterResourceEntity).atLeastOnce();

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ArtifactResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ArtifactResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ArtifactResourceProviderTest.java
index de9df07..2a0fdaa 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ArtifactResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ArtifactResourceProviderTest.java
@@ -160,8 +160,8 @@ public class ArtifactResourceProviderTest {
     entities.add(entity);
     entities.add(entity2);
 
-    Map<String, Object> artifact_data = Collections.<String, 
Object>singletonMap("foo", "bar");
-    Map<String, Object> artifact_data2 = Collections.<String, 
Object>singletonMap("foo2", "bar2");
+    Map<String, Object> artifact_data = Collections.singletonMap("foo", "bar");
+    Map<String, Object> artifact_data2 = Collections.singletonMap("foo2", 
"bar2");
 
     Map<String, String> responseForeignKeys = new HashMap<>();
     responseForeignKeys.put("cluster", "500");
@@ -316,8 +316,8 @@ public class ArtifactResourceProviderTest {
     entities.add(entity);
     entities.add(entity2);
 
-    Map<String, Object> artifact_data = Collections.<String, 
Object>singletonMap("foo", "bar");
-    Map<String, Object> artifact_data2 = Collections.<String, 
Object>singletonMap("foo2", "bar2");
+    Map<String, Object> artifact_data = Collections.singletonMap("foo", "bar");
+    Map<String, Object> artifact_data2 = Collections.singletonMap("foo2", 
"bar2");
 
     Map<String, String> responseForeignKeys = new HashMap<>();
     responseForeignKeys.put("cluster", "500");
@@ -403,8 +403,8 @@ public class ArtifactResourceProviderTest {
     entities.add(entity);
     entities.add(entity2);
 
-    Map<String, Object> artifact_data = Collections.<String, 
Object>singletonMap("foo", "bar");
-    Map<String, Object> artifact_data2 = Collections.<String, 
Object>singletonMap("foo2", "bar2");
+    Map<String, Object> artifact_data = Collections.singletonMap("foo", "bar");
+    Map<String, Object> artifact_data2 = Collections.singletonMap("foo2", 
"bar2");
 
     Map<String, String> responseForeignKeys = new HashMap<>();
     responseForeignKeys.put("cluster", "500");

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/BaseBlueprintProcessorTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/BaseBlueprintProcessorTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/BaseBlueprintProcessorTest.java
index da8b01c..dae6fdf 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/BaseBlueprintProcessorTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/BaseBlueprintProcessorTest.java
@@ -12,7 +12,6 @@ import java.util.Map;
 import java.util.Set;
 
 import org.apache.ambari.server.controller.AmbariManagementController;
-import org.apache.ambari.server.controller.StackConfigurationResponse;
 import org.apache.ambari.server.controller.StackLevelConfigurationRequest;
 import org.apache.ambari.server.controller.StackServiceResponse;
 import org.apache.ambari.server.state.DependencyInfo;
@@ -51,7 +50,7 @@ public class BaseBlueprintProcessorTest {
         Collections.<StackServiceResponse> emptySet());
 
     
expect(mockMgmtController.getStackLevelConfigurations((Set<StackLevelConfigurationRequest>)
 anyObject())).andReturn(
-        Collections.<StackConfigurationResponse>emptySet()).anyTimes();
+        Collections.emptySet()).anyTimes();
 
         // test dependencies
     final DependencyInfo hCatDependency = new TestDependencyInfo("HIVE/HCAT");
@@ -153,7 +152,7 @@ public class BaseBlueprintProcessorTest {
         Collections.<StackServiceResponse> emptySet());
 
     
expect(mockMgmtController.getStackLevelConfigurations((Set<StackLevelConfigurationRequest>)
 anyObject())).andReturn(
-        Collections.<StackConfigurationResponse>emptySet()).anyTimes();
+        Collections.emptySet()).anyTimes();
 
     // test dependencies
     final DependencyInfo yarnClientDependency = new TestDependencyInfo(
@@ -252,7 +251,7 @@ public class BaseBlueprintProcessorTest {
         Collections.<StackServiceResponse> emptySet());
 
     
expect(mockMgmtController.getStackLevelConfigurations((Set<StackLevelConfigurationRequest>)
 anyObject())).andReturn(
-        Collections.<StackConfigurationResponse>emptySet()).anyTimes();
+        Collections.emptySet()).anyTimes();
 
     // test dependencies
     final DependencyInfo hCatDependency = new TestDependencyInfo("HIVE/HCAT");
@@ -348,7 +347,7 @@ public class BaseBlueprintProcessorTest {
         Collections.<StackServiceResponse> emptySet());
 
     
expect(mockMgmtController.getStackLevelConfigurations((Set<StackLevelConfigurationRequest>)
 anyObject())).andReturn(
-        Collections.<StackConfigurationResponse>emptySet()).anyTimes();
+        Collections.emptySet()).anyTimes();
 
     // test dependencies
     final DependencyInfo hCatDependency = new TestDependencyInfo("HIVE/HCAT");
@@ -446,7 +445,7 @@ public class BaseBlueprintProcessorTest {
         Collections.<StackServiceResponse> emptySet());
 
     
expect(mockMgmtController.getStackLevelConfigurations((Set<StackLevelConfigurationRequest>)
 anyObject())).andReturn(
-        Collections.<StackConfigurationResponse>emptySet()).anyTimes();
+        Collections.emptySet()).anyTimes();
 
     // test dependencies
     final DependencyInfo hCatDependency = new TestDependencyInfo("HIVE/HCAT");
@@ -542,7 +541,7 @@ public class BaseBlueprintProcessorTest {
         Collections.<StackServiceResponse> emptySet());
 
     
expect(mockMgmtController.getStackLevelConfigurations((Set<StackLevelConfigurationRequest>)
 anyObject())).andReturn(
-        Collections.<StackConfigurationResponse>emptySet()).anyTimes();
+        Collections.emptySet()).anyTimes();
 
     // test dependencies
     final DependencyInfo hCatDependency = new TestDependencyInfo("HIVE/HCAT");

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