http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/HttpPropertyProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/HttpPropertyProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/HttpPropertyProviderTest.java
index 7c8a6b1..7eb0a13 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/HttpPropertyProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/HttpPropertyProviderTest.java
@@ -54,10 +54,10 @@ public class HttpPropertyProviderTest {
 
   static {
     HTTP_PROPERTY_REQUESTS.put("RESOURCEMANAGER",
-        
Collections.<HttpPropertyProvider.HttpPropertyRequest>singletonList(new 
ResourceManagerHttpPropertyRequest()));
+        Collections.singletonList(new ResourceManagerHttpPropertyRequest()));
 
     HTTP_PROPERTY_REQUESTS.put("ATLAS_SERVER",
-        
Collections.<HttpPropertyProvider.HttpPropertyRequest>singletonList(new 
AtlasServerHttpPropertyRequest()));
+        Collections.singletonList(new AtlasServerHttpPropertyRequest()));
   }
 
   @Test
@@ -78,7 +78,7 @@ public class HttpPropertyProviderTest {
     
expect(cluster.getDesiredConfigByType("yarn-site")).andReturn(config1).anyTimes();
     
expect(cluster.getDesiredConfigByType("core-site")).andReturn(config2).anyTimes();
     expect(config1.getProperties()).andReturn(map).anyTimes();
-    expect(config2.getProperties()).andReturn(new HashMap<String, 
String>()).anyTimes();
+    expect(config2.getProperties()).andReturn(new HashMap<>()).anyTimes();
 
     replay(clusters, cluster, config1, config2);
 
@@ -97,7 +97,7 @@ public class HttpPropertyProviderTest {
     resource.setProperty(PROPERTY_ID_CLUSTER_NAME, "testCluster");
     resource.setProperty(PROPERTY_ID_COMPONENT_NAME, "RESOURCEMANAGER");
 
-    Request request = 
PropertyHelper.getReadRequest(Collections.<String>emptySet());
+    Request request = PropertyHelper.getReadRequest(Collections.emptySet());
 
     propProvider.populateResources(Collections.singleton(resource), request, 
null);
 
@@ -129,7 +129,7 @@ public class HttpPropertyProviderTest {
     
expect(cluster.getDesiredConfigByType("yarn-site")).andReturn(config1).anyTimes();
     
expect(cluster.getDesiredConfigByType("core-site")).andReturn(config2).anyTimes();
     expect(config1.getProperties()).andReturn(map).anyTimes();
-    expect(config2.getProperties()).andReturn(new HashMap<String, 
String>()).anyTimes();
+    expect(config2.getProperties()).andReturn(new HashMap<>()).anyTimes();
 
     replay(clusters, cluster, config1, config2);
 
@@ -148,7 +148,7 @@ public class HttpPropertyProviderTest {
     resource.setProperty(PROPERTY_ID_CLUSTER_NAME, "testCluster");
     resource.setProperty(PROPERTY_ID_COMPONENT_NAME, "RESOURCEMANAGER");
 
-    Request request = 
PropertyHelper.getReadRequest(Collections.<String>emptySet());
+    Request request = PropertyHelper.getReadRequest(Collections.emptySet());
 
     propProvider.populateResources(Collections.singleton(resource), request, 
null);
 
@@ -190,7 +190,7 @@ public class HttpPropertyProviderTest {
     resource.setProperty(PROPERTY_ID_PUBLIC_HOST_NAME, 
"ec2-54-234-33-50.compute-1.amazonaws.com");
     resource.setProperty(PROPERTY_ID_COMPONENT_NAME, "ATLAS_SERVER");
 
-    Request request = 
PropertyHelper.getReadRequest(Collections.<String>emptySet());
+    Request request = PropertyHelper.getReadRequest(Collections.emptySet());
 
     propProvider.populateResources(Collections.singleton(resource), request, 
null);
 
@@ -232,7 +232,7 @@ public class HttpPropertyProviderTest {
     resource.setProperty(PROPERTY_ID_PUBLIC_HOST_NAME, 
"ec2-54-234-33-50.compute-1.amazonaws.com");
     resource.setProperty(PROPERTY_ID_COMPONENT_NAME, "ATLAS_SERVER");
 
-    Request request = 
PropertyHelper.getReadRequest(Collections.<String>emptySet());
+    Request request = PropertyHelper.getReadRequest(Collections.emptySet());
 
     propProvider.populateResources(Collections.singleton(resource), request, 
null);
 
@@ -244,7 +244,7 @@ public class HttpPropertyProviderTest {
   @Test
   public void testReadGangliaServer() throws Exception {
     Resource resource = doPopulate("GANGLIA_SERVER",
-        Collections.<String> emptySet(), new TestStreamProvider(false));
+        Collections.emptySet(), new TestStreamProvider(false));
 
     // !!! GANGLIA_SERVER has no current http lookup
     Assert.assertNull(resource.getPropertyValue(PROPERTY_ID_STALE_CONFIGS));

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/InstanceResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/InstanceResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/InstanceResourceProviderTest.java
index 959555f..ba67939 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/InstanceResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/InstanceResourceProviderTest.java
@@ -59,7 +59,7 @@ public class InstanceResourceProviderTest {
 
     propertySet.add(properties);
 
-    Request request = PropertyHelper.getCreateRequest(propertySet, 
Collections.<String,String>emptyMap());
+    Request request = PropertyHelper.getCreateRequest(propertySet, 
Collections.emptyMap());
 
     InstanceResourceProvider provider = new InstanceResourceProvider(service,
         PropertyHelper.getPropertyIds(Resource.Type.DRInstance),
@@ -104,7 +104,7 @@ public class InstanceResourceProviderTest {
 
     propertySet.add(properties);
 
-    Request request = PropertyHelper.getCreateRequest(propertySet, 
Collections.<String,String>emptyMap());
+    Request request = PropertyHelper.getCreateRequest(propertySet, 
Collections.emptyMap());
 
     InstanceResourceProvider provider = new InstanceResourceProvider(service,
         PropertyHelper.getPropertyIds(Resource.Type.DRInstance),
@@ -145,7 +145,7 @@ public class InstanceResourceProviderTest {
 
     propertySet.add(properties);
 
-    Request request = PropertyHelper.getCreateRequest(propertySet, 
Collections.<String,String>emptyMap());
+    Request request = PropertyHelper.getCreateRequest(propertySet, 
Collections.emptyMap());
 
     InstanceResourceProvider provider = new InstanceResourceProvider(service,
         PropertyHelper.getPropertyIds(Resource.Type.DRInstance),

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/JMXHostProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/JMXHostProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/JMXHostProviderTest.java
index f118bd4..e19ad29 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/JMXHostProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/JMXHostProviderTest.java
@@ -219,7 +219,7 @@ public class JMXHostProviderTest {
         "hdfs-site", "version1", configs, null);
       ClusterRequest crequest = new ClusterRequest(cluster.getClusterId(), 
clusterName, null, null);
       crequest.setDesiredConfig(Collections.singletonList(cr));
-      controller.updateClusters(Collections.singleton(crequest), new 
HashMap<String,String>());
+      controller.updateClusters(Collections.singleton(crequest), new 
HashMap<>());
 
     } else {
       Map<String, String> configs = new HashMap<>();
@@ -231,7 +231,7 @@ public class JMXHostProviderTest {
 
       ClusterRequest crequest = new ClusterRequest(cluster.getClusterId(), 
clusterName, null, null);
       crequest.setDesiredConfig(Collections.singletonList(cr));
-      controller.updateClusters(Collections.singleton(crequest), new 
HashMap<String,String>());
+      controller.updateClusters(Collections.singleton(crequest), new 
HashMap<>());
     }
   }
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/KerberosDescriptorResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/KerberosDescriptorResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/KerberosDescriptorResourceProviderTest.java
index d9b3af7..ca8127e 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/KerberosDescriptorResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/KerberosDescriptorResourceProviderTest.java
@@ -11,7 +11,6 @@ import java.util.Map;
 import java.util.Set;
 
 import org.apache.ambari.server.controller.spi.Request;
-import org.apache.ambari.server.controller.spi.Resource;
 import org.apache.ambari.server.controller.spi.UnsupportedPropertyException;
 import org.apache.ambari.server.orm.dao.KerberosDescriptorDAO;
 import org.apache.ambari.server.orm.entities.KerberosDescriptorEntity;
@@ -81,7 +80,7 @@ public class KerberosDescriptorResourceProviderTest {
     EasyMock.replay(request);
 
     kerberosDescriptorResourceProvider = new 
KerberosDescriptorResourceProvider(kerberosDescriptorDAO,
-        kerberosDescriptorFactory, Collections.<String>emptySet(), 
Collections.<Resource.Type, String>emptyMap(), null);
+        kerberosDescriptorFactory, Collections.emptySet(), 
Collections.emptyMap(), null);
 
     // WHEN
     kerberosDescriptorResourceProvider.createResources(request);
@@ -98,7 +97,7 @@ public class KerberosDescriptorResourceProviderTest {
     EasyMock.replay(request);
 
     kerberosDescriptorResourceProvider = new 
KerberosDescriptorResourceProvider(kerberosDescriptorDAO,
-        kerberosDescriptorFactory, Collections.<String>emptySet(), 
Collections.<Resource.Type, String>emptyMap(), null);
+        kerberosDescriptorFactory, Collections.emptySet(), 
Collections.emptyMap(), null);
 
     // WHEN
     kerberosDescriptorResourceProvider.createResources(request);
@@ -113,7 +112,7 @@ public class KerberosDescriptorResourceProviderTest {
 
     // GIVEN
     kerberosDescriptorResourceProvider = new 
KerberosDescriptorResourceProvider(kerberosDescriptorDAO,
-        kerberosDescriptorFactory, Collections.<String>emptySet(), 
Collections.<Resource.Type, String>emptyMap(), null);
+        kerberosDescriptorFactory, Collections.emptySet(), 
Collections.emptyMap(), null);
 
     EasyMock.expect(request.getProperties())
         
.andReturn(requestPropertySet(KERBEROS_DESCRIPTORS_KERBEROS_DESCRIPTOR_NAME, 
TEST_KERBEROS_DESCRIPTOR_NAME))

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/MemberResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/MemberResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/MemberResourceProviderTest.java
index 489a94a..39ba4b9 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/MemberResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/MemberResourceProviderTest.java
@@ -33,7 +33,6 @@ import java.util.Map;
 import java.util.Set;
 
 import org.apache.ambari.server.controller.AmbariManagementController;
-import org.apache.ambari.server.controller.MemberResponse;
 import org.apache.ambari.server.controller.RequestStatusResponse;
 import org.apache.ambari.server.controller.ResourceProviderFactory;
 import org.apache.ambari.server.controller.spi.Predicate;
@@ -79,7 +78,7 @@ public class MemberResourceProviderTest {
 
     AbstractControllerResourceProvider.init(resourceProviderFactory);
 
-    
expect(resourceProviderFactory.getMemberResourceProvider(EasyMock.<Set<String>>anyObject(),
 EasyMock.<Map<Resource.Type, String>>anyObject(), eq(managementController)))
+    
expect(resourceProviderFactory.getMemberResourceProvider(EasyMock.anyObject(), 
EasyMock.anyObject(), eq(managementController)))
         .andReturn(new 
MemberResourceProvider(PropertyHelper.getPropertyIds(type), 
PropertyHelper.getKeyPropertyIds(type), managementController)).anyTimes();
 
     
managementController.createMembers(AbstractResourceProviderTest.Matcher.getMemberRequestSet("engineering",
 "joe"));
@@ -135,11 +134,11 @@ public class MemberResourceProviderTest {
 
     AbstractControllerResourceProvider.init(resourceProviderFactory);
 
-    
expect(resourceProviderFactory.getMemberResourceProvider(EasyMock.<Set<String>>anyObject(),
 EasyMock.<Map<Resource.Type, String>>anyObject(), eq(managementController)))
+    
expect(resourceProviderFactory.getMemberResourceProvider(EasyMock.anyObject(), 
EasyMock.anyObject(), eq(managementController)))
         .andReturn(new 
MemberResourceProvider(PropertyHelper.getPropertyIds(type), 
PropertyHelper.getKeyPropertyIds(type), managementController)).anyTimes();
 
     
expect(managementController.getMembers(AbstractResourceProviderTest.Matcher.getMemberRequestSet(null,
 null)))
-        .andReturn(Collections.<MemberResponse>emptySet())
+        .andReturn(Collections.emptySet())
         .atLeastOnce();
 
     // replay
@@ -184,7 +183,7 @@ public class MemberResourceProviderTest {
     AbstractControllerResourceProvider.init(resourceProviderFactory);
 
     // set expectations
-    
expect(resourceProviderFactory.getMemberResourceProvider(EasyMock.<Set<String>>anyObject(),
 EasyMock.<Map<Resource.Type, String>>anyObject(), eq(managementController)))
+    
expect(resourceProviderFactory.getMemberResourceProvider(EasyMock.anyObject(), 
EasyMock.anyObject(), eq(managementController)))
         .andReturn(new 
MemberResourceProvider(PropertyHelper.getPropertyIds(type), 
PropertyHelper.getKeyPropertyIds(type), managementController)).anyTimes();
 
     
managementController.updateMembers(AbstractResourceProviderTest.Matcher.getMemberRequestSet("engineering",
 "joe"));
@@ -239,7 +238,7 @@ public class MemberResourceProviderTest {
     AbstractControllerResourceProvider.init(resourceProviderFactory);
 
     // set expectations
-    
expect(resourceProviderFactory.getMemberResourceProvider(EasyMock.<Set<String>>anyObject(),
 EasyMock.<Map<Resource.Type, String>>anyObject(), eq(managementController)))
+    
expect(resourceProviderFactory.getMemberResourceProvider(EasyMock.anyObject(), 
EasyMock.anyObject(), eq(managementController)))
         .andReturn(new 
MemberResourceProvider(PropertyHelper.getPropertyIds(type), 
PropertyHelper.getKeyPropertyIds(type), managementController)).anyTimes();
 
     
managementController.deleteMembers(AbstractResourceProviderTest.Matcher.getMemberRequestSet("engineering",
 null));

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/PreUpgradeCheckResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/PreUpgradeCheckResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/PreUpgradeCheckResourceProviderTest.java
index 3de20e4..e464329 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/PreUpgradeCheckResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/PreUpgradeCheckResourceProviderTest.java
@@ -142,7 +142,7 @@ public class PreUpgradeCheckResourceProviderTest {
 
     ResourceProvider provider = 
getPreUpgradeCheckResourceProvider(managementController, injector);
     // create the request
-    Request request = PropertyHelper.getReadRequest(new HashSet<String>());
+    Request request = PropertyHelper.getReadRequest(new HashSet<>());
     PredicateBuilder builder = new PredicateBuilder();
     Predicate predicate = 
builder.property(PreUpgradeCheckResourceProvider.UPGRADE_CHECK_CLUSTER_NAME_PROPERTY_ID).equals("Cluster100").and()
         
.property(PreUpgradeCheckResourceProvider.UPGRADE_CHECK_UPGRADE_PACK_PROPERTY_ID).equals("upgrade_pack11").and()

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ProvisionClusterRequestTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ProvisionClusterRequestTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ProvisionClusterRequestTest.java
index 69bb17c..5ed582f 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ProvisionClusterRequestTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ProvisionClusterRequestTest.java
@@ -73,8 +73,8 @@ public class ProvisionClusterRequestTest {
   private static final Blueprint blueprint = createNiceMock(Blueprint.class);
   private static final ResourceProvider hostResourceProvider = 
createMock(ResourceProvider.class);
   private static final Configuration blueprintConfig = new Configuration(
-      Collections.<String, Map<String, String>>emptyMap(),
-      Collections.<String, Map<String, Map<String, String>>>emptyMap());
+      Collections.emptyMap(),
+      Collections.emptyMap());
 
   @Rule
   public ExpectedException expectedException = ExpectedException.none();
@@ -92,7 +92,7 @@ public class ProvisionClusterRequestTest {
     
expect(blueprintFactory.getBlueprint(BLUEPRINT_NAME)).andReturn(blueprint).once();
     expect(blueprint.getConfiguration()).andReturn(blueprintConfig).anyTimes();
     
expect(hostResourceProvider.checkPropertyIds(Collections.singleton("Hosts/host_name"))).
-        andReturn(Collections.<String>emptySet()).once();
+        andReturn(Collections.emptySet()).once();
 
     replay(blueprintFactory, blueprint, hostResourceProvider);
   }

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/QuickLinkArtifactResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/QuickLinkArtifactResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/QuickLinkArtifactResourceProviderTest.java
index 2708da7..9ce6471 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/QuickLinkArtifactResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/QuickLinkArtifactResourceProviderTest.java
@@ -87,7 +87,7 @@ public class QuickLinkArtifactResourceProviderTest {
         
property(QuickLinkArtifactResourceProvider.STACK_SERVICE_NAME_PROPERTY_ID).equals("YARN").
         toPredicate();
     Set<Resource> resources =
-        
provider.getResources(PropertyHelper.getReadRequest(Sets.<String>newHashSet()), 
predicate);
+        
provider.getResources(PropertyHelper.getReadRequest(Sets.newHashSet()), 
predicate);
     Map<String, Link> linkMap = getLinks(resources);
 
     for (Map.Entry<String, Link> entry: linkMap.entrySet()) {
@@ -112,7 +112,7 @@ public class QuickLinkArtifactResourceProviderTest {
         
property(QuickLinkArtifactResourceProvider.STACK_SERVICE_NAME_PROPERTY_ID).equals("YARN").
         toPredicate();
     Set<Resource> resources =
-        
provider.getResources(PropertyHelper.getReadRequest(Sets.<String>newHashSet()), 
predicate);
+        
provider.getResources(PropertyHelper.getReadRequest(Sets.newHashSet()), 
predicate);
     Map<String, Link> linkMap = getLinks(resources);
 
     for (Link link: linkMap.values()) {
@@ -136,7 +136,7 @@ public class QuickLinkArtifactResourceProviderTest {
         
property(QuickLinkArtifactResourceProvider.STACK_SERVICE_NAME_PROPERTY_ID).equals("YARN").
         toPredicate();
     Set<Resource> resources =
-        
provider.getResources(PropertyHelper.getReadRequest(Sets.<String>newHashSet()), 
predicate);
+        
provider.getResources(PropertyHelper.getReadRequest(Sets.newHashSet()), 
predicate);
     Map<String, Link> linkMap = getLinks(resources);
 
     for (Link link: linkMap.values()) {

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RepositoryResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RepositoryResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RepositoryResourceProviderTest.java
index 409eaad..6a0ab89 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RepositoryResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RepositoryResourceProviderTest.java
@@ -29,7 +29,6 @@ import java.util.Map;
 import java.util.Set;
 
 import org.apache.ambari.server.controller.AmbariManagementController;
-import org.apache.ambari.server.controller.RepositoryRequest;
 import org.apache.ambari.server.controller.RepositoryResponse;
 import org.apache.ambari.server.controller.spi.Predicate;
 import org.apache.ambari.server.controller.spi.Request;
@@ -62,7 +61,7 @@ public class RepositoryResourceProviderTest {
     allResponse.add(rr);
 
     // set expectations
-    
expect(managementController.getRepositories(EasyMock.<Set<RepositoryRequest>>anyObject())).andReturn(allResponse).times(2);
+    
expect(managementController.getRepositories(EasyMock.anyObject())).andReturn(allResponse).times(2);
 
     // replay
     replay(managementController);
@@ -158,7 +157,7 @@ public class RepositoryResourceProviderTest {
     allResponse.add(rr);
 
     // set expectations
-    
expect(managementController.getRepositories(EasyMock.<Set<RepositoryRequest>>anyObject())).andReturn(allResponse).times(1);
+    
expect(managementController.getRepositories(EasyMock.anyObject())).andReturn(allResponse).times(1);
 
     // replay
     replay(managementController);

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestImplTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestImplTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestImplTest.java
index 3becc02..7c6b4bd 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestImplTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestImplTest.java
@@ -20,7 +20,6 @@ package org.apache.ambari.server.controller.internal;
 
 import java.util.Collections;
 import java.util.HashSet;
-import java.util.Map;
 import java.util.Set;
 
 import org.apache.ambari.server.controller.ResourceProviderFactory;
@@ -284,9 +283,9 @@ public class RequestImplTest {
 
   @Test
   public void testDryRunRequest() {
-    Request dryRunRequest = 
PropertyHelper.getCreateRequest(Collections.<Map<String,Object>>emptySet(), 
Collections.singletonMap(Request.DIRECTIVE_DRY_RUN, "true"));
-    Request nonDryRunReqest1 = 
PropertyHelper.getCreateRequest(Collections.<Map<String,Object>>emptySet(), 
Collections.singletonMap(Request.DIRECTIVE_DRY_RUN, "false"));
-    Request nonDryRunReqest2 = 
PropertyHelper.getCreateRequest(Collections.<Map<String,Object>>emptySet(), 
Collections.<String, String>emptyMap());
+    Request dryRunRequest = 
PropertyHelper.getCreateRequest(Collections.emptySet(), 
Collections.singletonMap(Request.DIRECTIVE_DRY_RUN, "true"));
+    Request nonDryRunReqest1 = 
PropertyHelper.getCreateRequest(Collections.emptySet(), 
Collections.singletonMap(Request.DIRECTIVE_DRY_RUN, "false"));
+    Request nonDryRunReqest2 = 
PropertyHelper.getCreateRequest(Collections.emptySet(), Collections.emptyMap());
 
     Assert.assertTrue(dryRunRequest.isDryRunRequest());
     Assert.assertFalse(nonDryRunReqest1.isDryRunRequest());

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestResourceProviderTest.java
index d2c462b..b2e9472 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestResourceProviderTest.java
@@ -126,10 +126,10 @@ public class RequestResourceProviderTest {
 
     //todo: add assertions for topology manager interactions
     
expect(topologyManager.getStageSummaries(EasyMock.<Long>anyObject())).andReturn(
-      Collections.<Long, 
HostRoleCommandStatusSummaryDTO>emptyMap()).anyTimes();
+      Collections.emptyMap()).anyTimes();
 
-    
expect(topologyManager.getRequests(EasyMock.<Collection<Long>>anyObject())).andReturn(
-      Collections.<LogicalRequest>emptyList()).anyTimes();
+    expect(topologyManager.getRequests(EasyMock.anyObject())).andReturn(
+      Collections.emptyList()).anyTimes();
 
     replay(topologyManager);
 
@@ -204,7 +204,7 @@ public class RequestResourceProviderTest {
   public void testGetResourcesWithRequestInfo() throws Exception {
     Resource.Type type = Resource.Type.Request;
 
-    expect(requestDAO.findByPks(Collections.<Long> emptyList(), 
true)).andReturn(Collections.<RequestEntity>emptyList()).anyTimes();
+    expect(requestDAO.findByPks(Collections.emptyList(), 
true)).andReturn(Collections.emptyList()).anyTimes();
 
     ActionManager actionManager = createNiceMock(ActionManager.class);
 
@@ -235,17 +235,17 @@ public class RequestResourceProviderTest {
       .equals(null)
       .toPredicate();
 
-    request = PropertyHelper.getReadRequest(new HashSet<String>(),
+    request = PropertyHelper.getReadRequest(new HashSet<>(),
       requestInfoProperties, null, null, null);
 
-    expect(requestDAO.findAllRequestIds(BaseRequest.DEFAULT_PAGE_SIZE, false, 
1L)).andReturn(Collections.<Long> emptyList()).anyTimes();
+    expect(requestDAO.findAllRequestIds(BaseRequest.DEFAULT_PAGE_SIZE, false, 
1L)).andReturn(Collections.emptyList()).anyTimes();
     replay(requestDAO);
 
     provider.getResources(request, predicate);
     verify(requestDAO);
 
     requestInfoProperties.put(BaseRequest.PAGE_SIZE_PROPERTY_KEY, "20");
-    request = PropertyHelper.getReadRequest(new HashSet<String>(),
+    request = PropertyHelper.getReadRequest(new HashSet<>(),
       requestInfoProperties, null, null, null);
     provider.getResources(request, predicate);
     verify(requestDAO);
@@ -253,10 +253,10 @@ public class RequestResourceProviderTest {
     reset(requestDAO);
 
     requestInfoProperties.put(BaseRequest.ASC_ORDER_PROPERTY_KEY, "true");
-    request = PropertyHelper.getReadRequest(new HashSet<String>(),
+    request = PropertyHelper.getReadRequest(new HashSet<>(),
       requestInfoProperties, null, null, null);
-    expect(requestDAO.findByPks(Collections.<Long> emptyList(), 
true)).andReturn(Collections.<RequestEntity>emptyList()).anyTimes();
-    expect(requestDAO.findAllRequestIds(BaseRequest.DEFAULT_PAGE_SIZE, true, 
1L)).andReturn(Collections.<Long> emptyList()).anyTimes();
+    expect(requestDAO.findByPks(Collections.emptyList(), 
true)).andReturn(Collections.emptyList()).anyTimes();
+    expect(requestDAO.findAllRequestIds(BaseRequest.DEFAULT_PAGE_SIZE, true, 
1L)).andReturn(Collections.emptyList()).anyTimes();
     replay(requestDAO);
 
     provider.getResources(request, predicate);
@@ -1631,7 +1631,7 @@ public class RequestResourceProviderTest {
     
expect(clusters.getCluster(anyObject(String.class))).andReturn(null).anyTimes();
     expect(requestDAO.findByPks(capture(requestIdsCapture), 
eq(true))).andReturn(Collections.singletonList(requestMock));
     expect(hrcDAO.findAggregateCounts((Long) anyObject())).andReturn(
-      Collections.<Long, 
HostRoleCommandStatusSummaryDTO>emptyMap()).anyTimes();
+      Collections.emptyMap()).anyTimes();
 
     // replay
     replay(managementController, actionManager, clusters, requestMock, 
requestDAO, hrcDAO);
@@ -1710,7 +1710,7 @@ public class RequestResourceProviderTest {
     expect(clusters.getClusterById(clusterId)).andReturn(cluster).anyTimes();
     expect(requestDAO.findByPks(capture(requestIdsCapture), 
eq(true))).andReturn(Lists.newArrayList(requestMock));
     expect(hrcDAO.findAggregateCounts((Long) anyObject())).andReturn(
-      Collections.<Long, 
HostRoleCommandStatusSummaryDTO>emptyMap()).anyTimes();
+      Collections.emptyMap()).anyTimes();
 
     Map<String, HostGroupInfo> hostGroupInfoMap = new HashMap<>();
     HostGroupInfo hostGroupInfo = new HostGroupInfo("host_group_1");
@@ -1750,7 +1750,7 @@ public class RequestResourceProviderTest {
     
expect(topologyManager.getRequests(eq(Collections.singletonList(100L)))).andReturn(
       Collections.singletonList(logicalRequest)).anyTimes();
     
expect(topologyManager.getStageSummaries(EasyMock.<Long>anyObject())).andReturn(
-      Collections.<Long, 
HostRoleCommandStatusSummaryDTO>emptyMap()).anyTimes();
+      Collections.emptyMap()).anyTimes();
 
     replay(actionManager, requestMock, requestDAO, hrcDAO, topologyManager, 
logicalRequest, hostRequest);
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestStageContainerTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestStageContainerTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestStageContainerTest.java
index 613f8e9..5894a54 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestStageContainerTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RequestStageContainerTest.java
@@ -29,7 +29,6 @@ import static org.junit.Assert.assertTrue;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
-import java.util.Map;
 
 import org.apache.ambari.server.AmbariException;
 import org.apache.ambari.server.Role;
@@ -119,7 +118,7 @@ public class RequestStageContainerTest {
     
expect(stage1.getHostRoleCommands()).andReturn(Collections.singletonMap(hostname,
 Collections.singletonMap(componentName, command1))).anyTimes();
     
expect(stage2.getHostRoleCommands()).andReturn(Collections.singletonMap(hostname,
 Collections.singletonMap(componentName, command2))).anyTimes();
     
expect(stage3.getHostRoleCommands()).andReturn(Collections.singletonMap(hostname,
 Collections.singletonMap(componentName, command3))).anyTimes();
-    expect(stage4.getHostRoleCommands()).andReturn(Collections.<String, 
Map<String, HostRoleCommand>>emptyMap()).anyTimes();
+    
expect(stage4.getHostRoleCommands()).andReturn(Collections.emptyMap()).anyTimes();
 
     
expect(command3.getRoleCommand()).andReturn(RoleCommand.SERVICE_CHECK).anyTimes();
     
expect(command2.getRoleCommand()).andReturn(RoleCommand.INSTALL).anyTimes();

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceComponentPropertyProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceComponentPropertyProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceComponentPropertyProviderTest.java
index 6be5142..a202516 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceComponentPropertyProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceComponentPropertyProviderTest.java
@@ -27,7 +27,6 @@ import java.util.Set;
 import org.apache.ambari.server.controller.RootServiceResponseFactory;
 import org.apache.ambari.server.controller.spi.Request;
 import org.apache.ambari.server.controller.spi.Resource;
-import org.apache.ambari.server.controller.spi.TemporalInfo;
 import org.apache.ambari.server.controller.utilities.PropertyHelper;
 import org.junit.Assert;
 import org.junit.Test;
@@ -77,7 +76,7 @@ public class RootServiceComponentPropertyProviderTest {
       
requestIds.add(RootServiceComponentPropertyProvider.JCE_POLICY_PROPERTY_ID);
     }
 
-    Request request = PropertyHelper.getReadRequest(requestIds, new 
HashMap<String, TemporalInfo>());
+    Request request = PropertyHelper.getReadRequest(requestIds, new 
HashMap<>());
 
     Set<Resource> resources = 
propertyProvider.populateResources(Collections.singleton(resource), request, 
null);
     Assert.assertEquals(1, resources.size());

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceComponentResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceComponentResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceComponentResourceProviderTest.java
index f60f982..222340b 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceComponentResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceComponentResourceProviderTest.java
@@ -29,7 +29,6 @@ import java.util.Map;
 import java.util.Set;
 
 import org.apache.ambari.server.controller.AmbariManagementController;
-import org.apache.ambari.server.controller.RootServiceComponentRequest;
 import org.apache.ambari.server.controller.RootServiceComponentResponse;
 import org.apache.ambari.server.controller.RootServiceResponseFactory;
 import org.apache.ambari.server.controller.spi.Predicate;
@@ -63,8 +62,8 @@ public class RootServiceComponentResourceProviderTest {
 
 
     // set expectations
-    
expect(managementController.getRootServiceComponents(EasyMock.<Set<RootServiceComponentRequest>>anyObject())).andReturn(allResponse).once();
-    
expect(managementController.getRootServiceComponents(EasyMock.<Set<RootServiceComponentRequest>>anyObject())).andReturn(nameResponse).once();
+    
expect(managementController.getRootServiceComponents(EasyMock.anyObject())).andReturn(allResponse).once();
+    
expect(managementController.getRootServiceComponents(EasyMock.anyObject())).andReturn(nameResponse).once();
     // replay
     replay(managementController);
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceHostComponentResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceHostComponentResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceHostComponentResourceProviderTest.java
index ce65c53..ce3656c 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceHostComponentResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceHostComponentResourceProviderTest.java
@@ -77,7 +77,7 @@ public class RootServiceHostComponentResourceProviderTest {
     expect(managementController.getClusters()).andReturn(clusters).anyTimes();
     expect(clusters.getHosts()).andReturn(hosts).anyTimes();
 
-    
expect(factory.getRootServiceHostComponent((RootServiceHostComponentRequest) 
anyObject(), EasyMock.<Set<HostResponse>>anyObject())).
+    
expect(factory.getRootServiceHostComponent((RootServiceHostComponentRequest) 
anyObject(), EasyMock.anyObject())).
         andReturn(responseSet).anyTimes();
 
     expect(clusters.getCluster("Cluster100")).andReturn(cluster).anyTimes();

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceResourceProviderTest.java
index 91f8ccd..96bc7c9 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/RootServiceResourceProviderTest.java
@@ -27,7 +27,6 @@ import java.util.HashSet;
 import java.util.Set;
 
 import org.apache.ambari.server.controller.AmbariManagementController;
-import org.apache.ambari.server.controller.RootServiceRequest;
 import org.apache.ambari.server.controller.RootServiceResponse;
 import org.apache.ambari.server.controller.spi.Predicate;
 import org.apache.ambari.server.controller.spi.Request;
@@ -57,8 +56,8 @@ public class RootServiceResourceProviderTest {
 
 
     // set expectations
-    
expect(managementController.getRootServices(EasyMock.<Set<RootServiceRequest>>anyObject())).andReturn(allResponse).once();
-    
expect(managementController.getRootServices(EasyMock.<Set<RootServiceRequest>>anyObject())).andReturn(nameResponse).once();
+    
expect(managementController.getRootServices(EasyMock.anyObject())).andReturn(allResponse).once();
+    
expect(managementController.getRootServices(EasyMock.anyObject())).andReturn(nameResponse).once();
     // replay
     replay(managementController);
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ScaleClusterRequestTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ScaleClusterRequestTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ScaleClusterRequestTest.java
index 6d16894..2a03b1f 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ScaleClusterRequestTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ScaleClusterRequestTest.java
@@ -70,8 +70,8 @@ public class ScaleClusterRequestTest {
   private static final ResourceProvider hostResourceProvider = 
createMock(ResourceProvider.class);
   private static final HostGroup hostGroup1 = createNiceMock(HostGroup.class);
   private static final Configuration blueprintConfig = new Configuration(
-      Collections.<String, Map<String, String>>emptyMap(),
-      Collections.<String, Map<String, Map<String, String>>>emptyMap());
+      Collections.emptyMap(),
+      Collections.emptyMap());
 
   @Before
   public void setUp() throws Exception {
@@ -89,7 +89,7 @@ public class ScaleClusterRequestTest {
     
expect(blueprint.getHostGroup(GROUP3_NAME)).andReturn(hostGroup1).anyTimes();
     expect(blueprint.getName()).andReturn(BLUEPRINT_NAME).anyTimes();
     
expect(hostResourceProvider.checkPropertyIds(Collections.singleton("test/prop"))).
-        andReturn(Collections.<String>emptySet()).once();
+        andReturn(Collections.emptySet()).once();
 
     replay(blueprintFactory, blueprint, hostResourceProvider, hostGroup1);
   }

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ServiceResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ServiceResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ServiceResourceProviderTest.java
index 2bb7b7a..20730d1 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ServiceResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/ServiceResourceProviderTest.java
@@ -50,8 +50,6 @@ import 
org.apache.ambari.server.controller.AmbariManagementController;
 import org.apache.ambari.server.controller.KerberosHelper;
 import org.apache.ambari.server.controller.MaintenanceStateHelper;
 import org.apache.ambari.server.controller.RequestStatusResponse;
-import org.apache.ambari.server.controller.ServiceComponentHostRequest;
-import org.apache.ambari.server.controller.ServiceComponentHostResponse;
 import org.apache.ambari.server.controller.ServiceRequest;
 import org.apache.ambari.server.controller.ServiceResponse;
 import org.apache.ambari.server.controller.spi.Predicate;
@@ -214,8 +212,8 @@ public class ServiceResourceProviderTest {
     // set expectations
     expect(managementController.getClusters()).andReturn(clusters).anyTimes();
     
expect(managementController.getAmbariMetaInfo()).andReturn(ambariMetaInfo).anyTimes();
-    
expect(managementController.getHostComponents(EasyMock.<Set<ServiceComponentHostRequest>>anyObject())).
-        
andReturn(Collections.<ServiceComponentHostResponse>emptySet()).anyTimes();
+    expect(managementController.getHostComponents(EasyMock.anyObject())).
+        andReturn(Collections.emptySet()).anyTimes();
 
     expect(clusters.getCluster("Cluster100")).andReturn(cluster).anyTimes();
 
@@ -332,8 +330,8 @@ public class ServiceResourceProviderTest {
     // set expectations
     expect(managementController.getClusters()).andReturn(clusters).anyTimes();
     
expect(managementController.getAmbariMetaInfo()).andReturn(ambariMetaInfo).anyTimes();
-    
expect(managementController.getHostComponents(EasyMock.<Set<ServiceComponentHostRequest>>anyObject())).
-        
andReturn(Collections.<ServiceComponentHostResponse>emptySet()).anyTimes();
+    expect(managementController.getHostComponents(EasyMock.anyObject())).
+        andReturn(Collections.emptySet()).anyTimes();
 
     expect(clusters.getCluster("Cluster100")).andReturn(cluster).anyTimes();
 
@@ -400,8 +398,8 @@ public class ServiceResourceProviderTest {
     // set expectations
     expect(managementController.getClusters()).andReturn(clusters).anyTimes();
     
expect(managementController.getAmbariMetaInfo()).andReturn(ambariMetaInfo).anyTimes();
-    
expect(managementController.getHostComponents(EasyMock.<Set<ServiceComponentHostRequest>>anyObject())).
-        
andReturn(Collections.<ServiceComponentHostResponse>emptySet()).anyTimes();
+    expect(managementController.getHostComponents(EasyMock.anyObject())).
+        andReturn(Collections.emptySet()).anyTimes();
 
     expect(clusters.getCluster("Cluster100")).andReturn(cluster).anyTimes();
 
@@ -467,8 +465,8 @@ public class ServiceResourceProviderTest {
     // set expectations
     expect(managementController.getClusters()).andReturn(clusters).anyTimes();
     
expect(managementController.getAmbariMetaInfo()).andReturn(ambariMetaInfo).anyTimes();
-    
expect(managementController.getHostComponents(EasyMock.<Set<ServiceComponentHostRequest>>anyObject())).
-        
andReturn(Collections.<ServiceComponentHostResponse>emptySet()).anyTimes();
+    expect(managementController.getHostComponents(EasyMock.anyObject())).
+        andReturn(Collections.emptySet()).anyTimes();
 
     expect(clusters.getCluster("Cluster100")).andReturn(cluster).anyTimes();
 
@@ -536,8 +534,8 @@ public class ServiceResourceProviderTest {
     // set expectations
     expect(managementController.getClusters()).andReturn(clusters).anyTimes();
     
expect(managementController.getAmbariMetaInfo()).andReturn(ambariMetaInfo).anyTimes();
-    
expect(managementController.getHostComponents(EasyMock.<Set<ServiceComponentHostRequest>>anyObject())).
-        
andReturn(Collections.<ServiceComponentHostResponse>emptySet()).anyTimes();
+    expect(managementController.getHostComponents(EasyMock.anyObject())).
+        andReturn(Collections.emptySet()).anyTimes();
 
     expect(clusters.getCluster("Cluster100")).andReturn(cluster).anyTimes();
 
@@ -629,7 +627,7 @@ public class ServiceResourceProviderTest {
     expect(cluster.getService("Service102")).andReturn(service0);
 
     expect(service0.getDesiredState()).andReturn(State.INSTALLED).anyTimes();
-    expect(service0.getServiceComponents()).andReturn(Collections.<String, 
ServiceComponent>emptyMap()).anyTimes();
+    
expect(service0.getServiceComponents()).andReturn(Collections.emptyMap()).anyTimes();
 
     expect(stackId.getStackId()).andReturn("HDP-2.5").anyTimes();
     expect(stackId.getStackName()).andReturn("HDP").anyTimes();
@@ -660,7 +658,7 @@ public class ServiceResourceProviderTest {
     expect(managementController.getRoleCommandOrder(cluster)).andReturn(rco).
     anyTimes();
     expect(rco.getTransitiveServices(eq(service0), eq(RoleCommand.START))).
-    andReturn(Collections.<Service>emptySet()).anyTimes();
+    andReturn(Collections.emptySet()).anyTimes();
 
     // replay
     replay(managementController, clusters, cluster, rco, 
maintenanceStateHelper,
@@ -731,10 +729,10 @@ public class ServiceResourceProviderTest {
     mapRequestProps.put("context", "Called from a test");
 
     // set expectations
-    
expect(managementController1.getHostComponents(EasyMock.<Set<ServiceComponentHostRequest>>anyObject())).
-        
andReturn(Collections.<ServiceComponentHostResponse>emptySet()).anyTimes();
-    
expect(managementController2.getHostComponents(EasyMock.<Set<ServiceComponentHostRequest>>anyObject())).
-        
andReturn(Collections.<ServiceComponentHostResponse>emptySet()).anyTimes();
+    expect(managementController1.getHostComponents(EasyMock.anyObject())).
+        andReturn(Collections.emptySet()).anyTimes();
+    expect(managementController2.getHostComponents(EasyMock.anyObject())).
+        andReturn(Collections.emptySet()).anyTimes();
 
     expect(clusters.getCluster("Cluster100")).andReturn(cluster).anyTimes();
 
@@ -758,7 +756,7 @@ public class ServiceResourceProviderTest {
 
     
expect(service0.convertToResponse()).andReturn(serviceResponse0).anyTimes();
     expect(service0.getDesiredState()).andReturn(State.INSTALLED).anyTimes();
-    expect(service0.getServiceComponents()).andReturn(Collections.<String, 
ServiceComponent>emptyMap()).anyTimes();
+    
expect(service0.getServiceComponents()).andReturn(Collections.emptyMap()).anyTimes();
 
     
expect(serviceResponse0.getClusterName()).andReturn("Cluster100").anyTimes();
     
expect(serviceResponse0.getServiceName()).andReturn("Service102").anyTimes();
@@ -795,7 +793,7 @@ public class ServiceResourceProviderTest {
     expect(managementController2.getRoleCommandOrder(cluster)).andReturn(rco).
     anyTimes();
     expect(rco.getTransitiveServices(eq(service0), eq(RoleCommand.START))).
-    andReturn(Collections.<Service>emptySet()).anyTimes();
+    andReturn(Collections.emptySet()).anyTimes();
 
     // replay
     replay(managementController1, response1, managementController2, 
requestStages1, requestStages2,
@@ -870,7 +868,7 @@ public class ServiceResourceProviderTest {
     expect(cluster.getService(serviceName)).andReturn(service).anyTimes();
     expect(service.getDesiredState()).andReturn(State.INSTALLED).anyTimes();
     expect(service.getName()).andReturn(serviceName).anyTimes();
-    expect(service.getServiceComponents()).andReturn(new HashMap<String, 
ServiceComponent>());
+    expect(service.getServiceComponents()).andReturn(new HashMap<>());
     expect(service.getCluster()).andReturn(cluster);
     cluster.deleteService(serviceName);
 
@@ -918,7 +916,7 @@ public class ServiceResourceProviderTest {
     expect(cluster.getService(serviceName)).andReturn(service).anyTimes();
     expect(service.getDesiredState()).andReturn(State.STARTED).anyTimes();
     expect(service.getName()).andReturn(serviceName).anyTimes();
-    expect(service.getServiceComponents()).andReturn(new HashMap<String, 
ServiceComponent>());
+    expect(service.getServiceComponents()).andReturn(new HashMap<>());
     expect(service.getCluster()).andReturn(cluster);
     cluster.deleteService(serviceName);
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/SimplifyingPredicateVisitorTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/SimplifyingPredicateVisitorTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/SimplifyingPredicateVisitorTest.java
index fd0edd8..8667e6c 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/SimplifyingPredicateVisitorTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/SimplifyingPredicateVisitorTest.java
@@ -80,7 +80,7 @@ public class SimplifyingPredicateVisitorTest {
 
     //expectations
 
-    
expect(provider.checkPropertyIds(capture(propertiesCapture))).andReturn(Collections.<String>emptySet()).anyTimes();
+    
expect(provider.checkPropertyIds(capture(propertiesCapture))).andReturn(Collections.emptySet()).anyTimes();
 
     replay(provider);
 
@@ -158,7 +158,7 @@ public class SimplifyingPredicateVisitorTest {
     //reset assertions.  For property D, indicate that it is not supported.
     verify(provider);
     reset(provider);
-    
expect(provider.checkPropertyIds(capture(propertiesCapture))).andReturn(Collections.<String>emptySet());
+    
expect(provider.checkPropertyIds(capture(propertiesCapture))).andReturn(Collections.emptySet());
     
expect(provider.checkPropertyIds(capture(propertiesCapture))).andReturn(Collections.singleton(PROPERTY_D));
     replay(provider);
 
@@ -172,7 +172,7 @@ public class SimplifyingPredicateVisitorTest {
 
     verify(provider);
     reset(provider);
-    
expect(provider.checkPropertyIds(capture(propertiesCapture))).andReturn(Collections.<String>emptySet()).anyTimes();
+    
expect(provider.checkPropertyIds(capture(propertiesCapture))).andReturn(Collections.emptySet()).anyTimes();
     replay(provider);
 
     // ---

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackAdvisorResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackAdvisorResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackAdvisorResourceProviderTest.java
index f8203a6..ab60948 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackAdvisorResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackAdvisorResourceProviderTest.java
@@ -157,8 +157,8 @@ public class StackAdvisorResourceProviderTest {
       keyPropertyIds, ambariManagementController);
 
     Request request = mock(Request.class);
-    Set<Map<String, Object>> propertiesSet = new HashSet<Map<String, 
Object>>();
-    Map<String, Object> propertiesMap = new HashMap<String, Object>();
+    Set<Map<String, Object>> propertiesSet = new HashSet<>();
+    Map<String, Object> propertiesMap = new HashMap<>();
     propertiesMap.put("hosts", new LinkedHashSet<>());
     propertiesMap.put("recommend", "configurations");
     propertiesSet.add(propertiesMap);

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackDefinedPropertyProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackDefinedPropertyProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackDefinedPropertyProviderTest.java
index e9e1b43..e3fa676 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackDefinedPropertyProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackDefinedPropertyProviderTest.java
@@ -300,7 +300,7 @@ public class StackDefinedPropertyProviderTest {
     resource.setProperty("HostRoles/state", "STARTED");
 
     // request with an empty set should get all supported properties
-    Request request = 
PropertyHelper.getReadRequest(Collections.<String>emptySet(), new 
HashMap<String, TemporalInfo>());
+    Request request = PropertyHelper.getReadRequest(Collections.emptySet(), 
new HashMap<>());
 
     Set<Resource> set = 
sdpp.populateResources(Collections.singleton(resource), request, null);
     Assert.assertEquals(1, set.size());
@@ -331,7 +331,7 @@ public class StackDefinedPropertyProviderTest {
     resource.setProperty("HostRoles/state", "STARTED");
 
     // request with an empty set should get all supported properties
-    Request request = 
PropertyHelper.getReadRequest(Collections.<String>emptySet(), new 
HashMap<String, TemporalInfo>());
+    Request request = PropertyHelper.getReadRequest(Collections.emptySet(), 
new HashMap<>());
 
     Set<Resource> set = 
sdpp.populateResources(Collections.singleton(resource), request, null);
     Assert.assertEquals(1, set.size());
@@ -499,7 +499,7 @@ public class StackDefinedPropertyProviderTest {
     resource.setProperty(HOST_COMPONENT_STATE_PROPERTY_ID, "STARTED");
 
     // request with an empty set should get all supported properties
-    Request request = 
PropertyHelper.getReadRequest(Collections.<String>emptySet());
+    Request request = PropertyHelper.getReadRequest(Collections.emptySet());
 
     Assert.assertEquals(1, 
propertyProvider.populateResources(Collections.singleton(resource), request, 
null).size());
 
@@ -527,7 +527,7 @@ public class StackDefinedPropertyProviderTest {
     resource.setProperty(HOST_COMPONENT_STATE_PROPERTY_ID, "STARTED");
 
     // request with an empty set should get all supported properties
-    request = PropertyHelper.getReadRequest(Collections.<String>emptySet());
+    request = PropertyHelper.getReadRequest(Collections.emptySet());
 
     Assert.assertEquals(1, 
propertyProvider.populateResources(Collections.singleton(resource), request, 
null).size());
   }
@@ -559,7 +559,7 @@ public class StackDefinedPropertyProviderTest {
     resource.setProperty(HOST_COMPONENT_STATE_PROPERTY_ID, "STARTED");
 
     // request with an empty set should get all supported properties
-    Request request = 
PropertyHelper.getReadRequest(Collections.<String>emptySet());
+    Request request = PropertyHelper.getReadRequest(Collections.emptySet());
 
     Assert.assertEquals(1, 
propertyProvider.populateResources(Collections.singleton(resource), request, 
null).size());
 
@@ -758,7 +758,7 @@ public class StackDefinedPropertyProviderTest {
     resource.setProperty(HOST_COMPONENT_STATE_PROPERTY_ID, "STARTED");
 
     // request with an empty set should get all supported properties
-    Request request = 
PropertyHelper.getReadRequest(Collections.<String>emptySet());
+    Request request = PropertyHelper.getReadRequest(Collections.emptySet());
 
     Assert.assertEquals(1, 
propertyProvider.populateResources(Collections.singleton(resource), request, 
null).size());
 
@@ -882,7 +882,7 @@ public class StackDefinedPropertyProviderTest {
     resource.setProperty(HOST_COMPONENT_STATE_PROPERTY_ID, "STARTED");
 
     // request with an empty set should get all supported properties
-    Request request = 
PropertyHelper.getReadRequest(Collections.<String>emptySet());
+    Request request = PropertyHelper.getReadRequest(Collections.emptySet());
 
     Assert.assertEquals(1, 
propertyProvider.populateResources(Collections.singleton(resource), request, 
null).size());
 
@@ -926,7 +926,7 @@ public class StackDefinedPropertyProviderTest {
     int preSize = resource.getPropertiesMap().size();
 
     // request with an empty set should get all supported properties
-    Request request = 
PropertyHelper.getReadRequest(Collections.<String>emptySet());
+    Request request = PropertyHelper.getReadRequest(Collections.emptySet());
 
     Assert.assertEquals(1, 
propertyProvider.populateResources(Collections.singleton(resource), request, 
null).size());
 
@@ -961,7 +961,7 @@ public class StackDefinedPropertyProviderTest {
 
 
     // request with an empty set should get all supported properties
-    Request request = 
PropertyHelper.getReadRequest(Collections.<String>emptySet());
+    Request request = PropertyHelper.getReadRequest(Collections.emptySet());
 
     Set<Resource> res = 
propertyProvider.populateResources(Collections.singleton(resource), request, 
null);
     Assert.assertEquals(1, res.size());

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackResourceProviderTest.java
index 2085bbe..4281e33 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackResourceProviderTest.java
@@ -27,7 +27,6 @@ import java.util.HashSet;
 import java.util.Set;
 
 import org.apache.ambari.server.controller.AmbariManagementController;
-import org.apache.ambari.server.controller.StackRequest;
 import org.apache.ambari.server.controller.StackResponse;
 import org.apache.ambari.server.controller.spi.Request;
 import org.apache.ambari.server.controller.spi.Resource;
@@ -52,7 +51,7 @@ public class StackResourceProviderTest {
     allResponse.add(new StackResponse("Stack2"));
 
     // set expectations
-    
expect(managementController.getStacks(EasyMock.<Set<StackRequest>>anyObject())).andReturn(allResponse).once();
+    
expect(managementController.getStacks(EasyMock.anyObject())).andReturn(allResponse).once();
 
     // replay
     replay(managementController);

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackServiceResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackServiceResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackServiceResourceProviderTest.java
index 7a41ea4..2a2ef0b 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackServiceResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackServiceResourceProviderTest.java
@@ -30,7 +30,6 @@ import java.util.Map;
 import java.util.Set;
 
 import org.apache.ambari.server.controller.AmbariManagementController;
-import org.apache.ambari.server.controller.StackServiceRequest;
 import org.apache.ambari.server.controller.StackServiceResponse;
 import org.apache.ambari.server.controller.spi.Request;
 import org.apache.ambari.server.controller.spi.Resource;
@@ -79,7 +78,7 @@ public class StackServiceResourceProviderTest {
     StackServiceResponse stackServiceResponse = 
createNiceMock(StackServiceResponse.class);
     
expect(stackServiceResponse.getServiceProperties()).andReturn(TEST_SERVICE_PROPERTIES);
 
-    
expect(managementController.getStackServices(EasyMock.<Set<StackServiceRequest>>anyObject()))
+    expect(managementController.getStackServices(EasyMock.anyObject()))
       .andReturn(ImmutableSet.of(stackServiceResponse));
 
     replay(managementController, stackServiceResponse);
@@ -122,7 +121,7 @@ public class StackServiceResourceProviderTest {
 
 
 
-    
expect(managementController.getStackServices(EasyMock.<Set<StackServiceRequest>>anyObject()))
+    expect(managementController.getStackServices(EasyMock.anyObject()))
       .andReturn(ImmutableSet.of(stackServiceResponse));
 
     replay(managementController);

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackTest.java
index 0f82d38..68257d1 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackTest.java
@@ -33,7 +33,6 @@ import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashSet;
-import java.util.Map;
 import java.util.Set;
 
 import org.apache.ambari.server.api.services.AmbariMetaInfo;
@@ -45,7 +44,6 @@ import 
org.apache.ambari.server.controller.StackServiceComponentRequest;
 import org.apache.ambari.server.controller.StackServiceComponentResponse;
 import org.apache.ambari.server.controller.StackServiceRequest;
 import org.apache.ambari.server.controller.StackServiceResponse;
-import org.apache.ambari.server.state.DependencyInfo;
 import org.apache.ambari.server.state.PropertyDependencyInfo;
 import org.apache.ambari.server.state.PropertyInfo;
 import org.apache.ambari.server.state.ValueAttributesInfo;
@@ -81,8 +79,8 @@ public class StackTest {
     expect(controller.getAmbariMetaInfo()).andReturn(metaInfo).anyTimes();
 
     
expect(stackServiceResponse.getServiceName()).andReturn("service1").anyTimes();
-    
expect(stackServiceResponse.getExcludedConfigTypes()).andReturn(Collections.<String>emptySet());
-    
expect(stackServiceResponse.getConfigTypes()).andReturn(Collections.<String, 
Map<String,Map<String,String>>>emptyMap());
+    
expect(stackServiceResponse.getExcludedConfigTypes()).andReturn(Collections.emptySet());
+    
expect(stackServiceResponse.getConfigTypes()).andReturn(Collections.emptyMap());
 
     
expect(controller.getStackComponents(capture(stackComponentRequestCapture))).
         andReturn(Collections.singleton(stackComponentResponse)).anyTimes();
@@ -95,18 +93,18 @@ public class StackTest {
 
     // no stack level configs for this test
     
expect(controller.getStackLevelConfigurations(capture(stackLevelConfigurationRequestCapture))).
-        
andReturn(Collections.<StackConfigurationResponse>emptySet()).anyTimes();
+        andReturn(Collections.emptySet()).anyTimes();
 
     
expect(stackConfigurationResponse.getPropertyName()).andReturn("prop1").anyTimes();
     
expect(stackConfigurationResponse.getPropertyValue()).andReturn("prop1Val").anyTimes();
     
expect(stackConfigurationResponse.getType()).andReturn("test-site.xml").anyTimes();
     expect(stackConfigurationResponse.getPropertyType()).andReturn(
-        
Collections.<org.apache.ambari.server.state.PropertyInfo.PropertyType>emptySet()).anyTimes();
-    
expect(stackConfigurationResponse.getPropertyAttributes()).andReturn(Collections.<String,
 String>emptyMap()).anyTimes();
+        Collections.emptySet()).anyTimes();
+    
expect(stackConfigurationResponse.getPropertyAttributes()).andReturn(Collections.emptyMap()).anyTimes();
     expect(stackConfigurationResponse.isRequired()).andReturn(true).anyTimes();
 
     expect(metaInfo.getComponentDependencies("test", "1.0", "service1", 
"component1")).
-        andReturn(Collections.<DependencyInfo>emptyList()).anyTimes();
+        andReturn(Collections.emptyList()).anyTimes();
 
 
     replay(controller, stackServiceResponse, stackComponentResponse, 
stackConfigurationResponse, metaInfo);
@@ -139,8 +137,8 @@ public class StackTest {
     StackConfigurationResponse mockResponse = 
mockSupport.createMock(StackConfigurationResponse.class);
     expect(mockResponse.getPropertyName()).andReturn("test-property-one");
     expect(mockResponse.getPropertyValue()).andReturn("test-value-one");
-    
expect(mockResponse.getPropertyAttributes()).andReturn(Collections.<String, 
String>emptyMap());
-    
expect(mockResponse.getPropertyType()).andReturn(Collections.<PropertyInfo.PropertyType>emptySet());
+    
expect(mockResponse.getPropertyAttributes()).andReturn(Collections.emptyMap());
+    expect(mockResponse.getPropertyType()).andReturn(Collections.emptySet());
     expect(mockResponse.getType()).andReturn("test-type-one");
     
expect(mockResponse.getDependsOnProperties()).andReturn(setOfDependencyInfo);
     expect(mockResponse.getPropertyValueAttributes()).andReturn(new 
ValueAttributesInfo());
@@ -177,8 +175,8 @@ public class StackTest {
     expect(controller.getAmbariMetaInfo()).andReturn(metaInfo).anyTimes();
 
     
expect(stackServiceResponse.getServiceName()).andReturn("service1").anyTimes();
-    
expect(stackServiceResponse.getExcludedConfigTypes()).andReturn(Collections.<String>emptySet());
-    
expect(stackServiceResponse.getConfigTypes()).andReturn(Collections.<String, 
Map<String,Map<String,String>>>emptyMap());
+    
expect(stackServiceResponse.getExcludedConfigTypes()).andReturn(Collections.emptySet());
+    
expect(stackServiceResponse.getConfigTypes()).andReturn(Collections.emptyMap());
 
     
expect(controller.getStackComponents(capture(stackComponentRequestCapture))).
         andReturn(Collections.singleton(stackComponentResponse)).anyTimes();
@@ -192,14 +190,14 @@ public class StackTest {
 
     // no stack level configs for this test
     
expect(controller.getStackLevelConfigurations(capture(stackLevelConfigurationRequestCapture))).
-        
andReturn(Collections.<StackConfigurationResponse>emptySet()).anyTimes();
+        andReturn(Collections.emptySet()).anyTimes();
 
     
expect(stackConfigurationResponse.getPropertyName()).andReturn("prop1").anyTimes();
     
expect(stackConfigurationResponse.getPropertyValue()).andReturn(null).anyTimes();
     
expect(stackConfigurationResponse.getType()).andReturn("test-site.xml").anyTimes();
     expect(stackConfigurationResponse.getPropertyType()).andReturn(
         Collections.singleton(PropertyInfo.PropertyType.PASSWORD)).anyTimes();
-    
expect(stackConfigurationResponse.getPropertyAttributes()).andReturn(Collections.<String,
 String>emptyMap()).anyTimes();
+    
expect(stackConfigurationResponse.getPropertyAttributes()).andReturn(Collections.emptyMap()).anyTimes();
     expect(stackConfigurationResponse.isRequired()).andReturn(true).anyTimes();
 
     // not a PASSWORD property type so shouldn't be returned
@@ -208,11 +206,11 @@ public class StackTest {
     
expect(stackConfigurationResponse2.getType()).andReturn("test-site.xml").anyTimes();
     expect(stackConfigurationResponse2.getPropertyType()).andReturn(
         Collections.singleton(PropertyInfo.PropertyType.USER)).anyTimes();
-    
expect(stackConfigurationResponse2.getPropertyAttributes()).andReturn(Collections.<String,
 String>emptyMap()).anyTimes();
+    
expect(stackConfigurationResponse2.getPropertyAttributes()).andReturn(Collections.emptyMap()).anyTimes();
     
expect(stackConfigurationResponse2.isRequired()).andReturn(true).anyTimes();
 
     expect(metaInfo.getComponentDependencies("test", "1.0", "service1", 
"component1")).
-        andReturn(Collections.<DependencyInfo>emptyList()).anyTimes();
+        andReturn(Collections.emptyList()).anyTimes();
 
     replay(controller, stackServiceResponse, stackComponentResponse, 
stackConfigurationResponse,
         stackConfigurationResponse2, metaInfo);
@@ -262,14 +260,14 @@ public class StackTest {
 
     expect(controller.getAmbariMetaInfo()).andReturn(metaInfo).anyTimes();
 
-    
expect(controller.getStackServices(EasyMock.<Set<StackServiceRequest>>anyObject())).andReturn(Collections.singleton(stackServiceResponse)).anyTimes();
+    
expect(controller.getStackServices(EasyMock.anyObject())).andReturn(Collections.singleton(stackServiceResponse)).anyTimes();
     
expect(stackServiceResponse.getServiceName()).andReturn(testServiceName).anyTimes();
-    
expect(stackServiceResponse.getExcludedConfigTypes()).andReturn(Collections.<String>emptySet());
+    
expect(stackServiceResponse.getExcludedConfigTypes()).andReturn(Collections.emptySet());
 
     // stack components
     
expect(stackComponentResponse.getComponentName()).andReturn("component1").anyTimes();
     
expect(stackComponentResponse.getComponentCategory()).andReturn(testSiteConfigFile).anyTimes();
-    
expect(controller.getStackComponents(EasyMock.<Set<StackServiceComponentRequest>>anyObject())).andReturn(Collections.singleton(stackComponentResponse)).anyTimes();
+    
expect(controller.getStackComponents(EasyMock.anyObject())).andReturn(Collections.singleton(stackComponentResponse)).anyTimes();
 
     // stack configurations
 
@@ -278,25 +276,25 @@ public class StackTest {
     
expect(stackConfigurationResponse1.getPropertyValue()).andReturn(null).anyTimes();
     
expect(stackConfigurationResponse1.getType()).andReturn(testSiteConfigFile).anyTimes();
     
expect(stackConfigurationResponse1.getPropertyType()).andReturn(Collections.singleton(PropertyInfo.PropertyType.TEXT)).anyTimes();
-    
expect(stackConfigurationResponse1.getPropertyAttributes()).andReturn(Collections.<String,
 String>emptyMap()).anyTimes();
+    
expect(stackConfigurationResponse1.getPropertyAttributes()).andReturn(Collections.emptyMap()).anyTimes();
     
expect(stackConfigurationResponse1.isRequired()).andReturn(true).anyTimes();
 
     
expect(stackConfigurationResponse2.getPropertyName()).andReturn("prop2").anyTimes();
     
expect(stackConfigurationResponse2.getPropertyValue()).andReturn(null).anyTimes();
     
expect(stackConfigurationResponse2.getType()).andReturn(testSiteConfigFile).anyTimes();
     
expect(stackConfigurationResponse2.getPropertyType()).andReturn(Collections.singleton(PropertyInfo.PropertyType.USER)).anyTimes();
-    
expect(stackConfigurationResponse2.getPropertyAttributes()).andReturn(Collections.<String,
 String>emptyMap()).anyTimes();
+    
expect(stackConfigurationResponse2.getPropertyAttributes()).andReturn(Collections.emptyMap()).anyTimes();
     
expect(stackConfigurationResponse2.isRequired()).andReturn(true).anyTimes();
 
-    
expect(controller.getStackConfigurations(EasyMock.<Set<StackConfigurationRequest>>anyObject())).andReturn(Sets.newHashSet(stackConfigurationResponse1,
 stackConfigurationResponse2)).anyTimes();
+    
expect(controller.getStackConfigurations(EasyMock.anyObject())).andReturn(Sets.newHashSet(stackConfigurationResponse1,
 stackConfigurationResponse2)).anyTimes();
 
     // empty stack service config type
-    
expect(stackServiceResponse.getConfigTypes()).andReturn(Collections.singletonMap(testEmptyConfigType,
 Collections.<String, Map<String,String>>emptyMap()));
+    
expect(stackServiceResponse.getConfigTypes()).andReturn(Collections.singletonMap(testEmptyConfigType,
 Collections.emptyMap()));
 
     // no stack level configs for this test
-    
expect(controller.getStackLevelConfigurations(EasyMock.<Set<StackLevelConfigurationRequest>>anyObject())).andReturn(Collections.<StackConfigurationResponse>emptySet()).anyTimes();
+    
expect(controller.getStackLevelConfigurations(EasyMock.anyObject())).andReturn(Collections.emptySet()).anyTimes();
 
-    expect(metaInfo.getComponentDependencies("test", "1.0", "service1", 
"component1")).andReturn(Collections.<DependencyInfo>emptyList()).anyTimes();
+    expect(metaInfo.getComponentDependencies("test", "1.0", "service1", 
"component1")).andReturn(Collections.emptyList()).anyTimes();
 
     replay(controller, stackServiceResponse, stackComponentResponse, 
stackConfigurationResponse1, stackConfigurationResponse2, metaInfo);
 
@@ -331,7 +329,7 @@ public class StackTest {
 
     expect(controller.getAmbariMetaInfo()).andReturn(metaInfo).anyTimes();
 
-    
expect(controller.getStackServices(EasyMock.<Set<StackServiceRequest>>anyObject())).andReturn(Collections.singleton(stackServiceResponse)).anyTimes();
+    
expect(controller.getStackServices(EasyMock.anyObject())).andReturn(Collections.singleton(stackServiceResponse)).anyTimes();
     
expect(stackServiceResponse.getServiceName()).andReturn(testServiceName).anyTimes();
 
     // Config type test-site is excluded for the service service1
@@ -340,23 +338,23 @@ public class StackTest {
     // stack components
     
expect(stackComponentResponse.getComponentName()).andReturn("component1").anyTimes();
     
expect(stackComponentResponse.getComponentCategory()).andReturn(testSiteConfigFile).anyTimes();
-    
expect(controller.getStackComponents(EasyMock.<Set<StackServiceComponentRequest>>anyObject())).andReturn(Collections.singleton(stackComponentResponse)).anyTimes();
+    
expect(controller.getStackComponents(EasyMock.anyObject())).andReturn(Collections.singleton(stackComponentResponse)).anyTimes();
 
     
expect(stackConfigurationResponse1.getPropertyName()).andReturn("prop1").anyTimes();
     
expect(stackConfigurationResponse1.getPropertyValue()).andReturn(null).anyTimes();
     
expect(stackConfigurationResponse1.getType()).andReturn(testSiteConfigFile).anyTimes();
     
expect(stackConfigurationResponse1.getPropertyType()).andReturn(Collections.singleton(PropertyInfo.PropertyType.TEXT)).anyTimes();
-    
expect(stackConfigurationResponse1.getPropertyAttributes()).andReturn(Collections.<String,
 String>emptyMap()).anyTimes();
+    
expect(stackConfigurationResponse1.getPropertyAttributes()).andReturn(Collections.emptyMap()).anyTimes();
     
expect(stackConfigurationResponse1.isRequired()).andReturn(true).anyTimes();
 
-    
expect(controller.getStackConfigurations(EasyMock.<Set<StackConfigurationRequest>>anyObject())).andReturn(Collections.singleton(stackConfigurationResponse1)).anyTimes();
+    
expect(controller.getStackConfigurations(EasyMock.anyObject())).andReturn(Collections.singleton(stackConfigurationResponse1)).anyTimes();
 
     // empty stack service config type
-    
expect(stackServiceResponse.getConfigTypes()).andReturn(Collections.singletonMap(testEmptyConfigType,
 Collections.<String, Map<String, String>>emptyMap()));
+    
expect(stackServiceResponse.getConfigTypes()).andReturn(Collections.singletonMap(testEmptyConfigType,
 Collections.emptyMap()));
 
     // no stack level configs for this test
-    
expect(controller.getStackLevelConfigurations(EasyMock.<Set<StackLevelConfigurationRequest>>anyObject())).andReturn(Collections.<StackConfigurationResponse>emptySet()).anyTimes();
-    expect(metaInfo.getComponentDependencies("test", "1.0", "service1", 
"component1")).andReturn(Collections.<DependencyInfo>emptyList()).anyTimes();
+    
expect(controller.getStackLevelConfigurations(EasyMock.anyObject())).andReturn(Collections.emptySet()).anyTimes();
+    expect(metaInfo.getComponentDependencies("test", "1.0", "service1", 
"component1")).andReturn(Collections.emptyList()).anyTimes();
 
     replay(controller, stackServiceResponse, stackComponentResponse, 
stackConfigurationResponse1, metaInfo);
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackUpgradeConfigurationMergeTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackUpgradeConfigurationMergeTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackUpgradeConfigurationMergeTest.java
index 9f3f01f..734fa96 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackUpgradeConfigurationMergeTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackUpgradeConfigurationMergeTest.java
@@ -58,7 +58,6 @@ import org.apache.ambari.server.state.ConfigHelper;
 import org.apache.ambari.server.state.DesiredConfig;
 import org.apache.ambari.server.state.RepositoryType;
 import org.apache.ambari.server.state.Service;
-import org.apache.ambari.server.state.ServiceComponent;
 import org.apache.ambari.server.state.ServiceComponentFactory;
 import org.apache.ambari.server.state.ServiceComponentHostFactory;
 import org.apache.ambari.server.state.ServiceFactory;
@@ -215,7 +214,7 @@ public class StackUpgradeConfigurationMergeTest extends 
EasyMockSupport {
     Service zookeeper = createNiceMock(Service.class);
     expect(zookeeper.getName()).andReturn("ZOOKEEPER").atLeastOnce();
     expect(zookeeper.getServiceComponents()).andReturn(
-        new HashMap<String, ServiceComponent>()).once();
+      new HashMap<>()).once();
     zookeeper.setDesiredRepositoryVersion(repoVersion220);
     expectLastCall().once();
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StageResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StageResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StageResourceProviderTest.java
index aed3ee0..9193722 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StageResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StageResourceProviderTest.java
@@ -85,7 +85,7 @@ public class StageResourceProviderTest {
     hrcDao = createStrictMock(HostRoleCommandDAO.class);
     topologyManager = EasyMock.createNiceMock(TopologyManager.class);
 
-    expect(topologyManager.getStages()).andReturn(new 
ArrayList<StageEntity>()).atLeastOnce();
+    expect(topologyManager.getStages()).andReturn(new 
ArrayList<>()).atLeastOnce();
 
     
expect(hrcDao.findAggregateCounts(EasyMock.anyObject(Long.class))).andReturn(
         new HashMap<Long, HostRoleCommandStatusSummaryDTO>() {
@@ -128,7 +128,7 @@ public class StageResourceProviderTest {
     Predicate predicate = createNiceMock(Predicate.class);
 
     expect(clusters.getClusterById(anyLong())).andReturn(cluster).anyTimes();
-    
expect(request.getProperties()).andReturn(Collections.<Map<String,Object>>emptySet());
+    expect(request.getProperties()).andReturn(Collections.emptySet());
 
     replay(clusters, cluster, request, predicate);
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/TargetClusterResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/TargetClusterResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/TargetClusterResourceProviderTest.java
index b0d48fe..492c012 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/TargetClusterResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/TargetClusterResourceProviderTest.java
@@ -87,7 +87,7 @@ public class TargetClusterResourceProviderTest {
 
     propertySet.add(properties);
 
-    Request request = PropertyHelper.getCreateRequest(propertySet, 
Collections.<String,String>emptyMap());
+    Request request = PropertyHelper.getCreateRequest(propertySet, 
Collections.emptyMap());
 
     TargetClusterResourceProvider provider = new 
TargetClusterResourceProvider(service,
         PropertyHelper.getPropertyIds(Resource.Type.DRTargetCluster),
@@ -134,7 +134,7 @@ public class TargetClusterResourceProviderTest {
 
     propertySet.add(properties);
 
-    Request request = PropertyHelper.getCreateRequest(propertySet, 
Collections.<String,String>emptyMap());
+    Request request = PropertyHelper.getCreateRequest(propertySet, 
Collections.emptyMap());
 
     TargetClusterResourceProvider provider = new 
TargetClusterResourceProvider(service,
         PropertyHelper.getPropertyIds(Resource.Type.DRTargetCluster),
@@ -183,7 +183,7 @@ public class TargetClusterResourceProviderTest {
 
     propertySet.add(properties);
 
-    Request request = PropertyHelper.getCreateRequest(propertySet, 
Collections.<String,String>emptyMap());
+    Request request = PropertyHelper.getCreateRequest(propertySet, 
Collections.emptyMap());
 
     TargetClusterResourceProvider provider = new 
TargetClusterResourceProvider(service,
         PropertyHelper.getPropertyIds(Resource.Type.DRTargetCluster),

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UpgradeResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UpgradeResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UpgradeResourceProviderTest.java
index 08c86dd..5eca6b3 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UpgradeResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UpgradeResourceProviderTest.java
@@ -172,7 +172,7 @@ public class UpgradeResourceProviderTest extends 
EasyMockSupport {
     expect(
         configHelper.getDefaultProperties(EasyMock.anyObject(StackId.class),
             EasyMock.anyString())).andReturn(
-        new HashMap<String, Map<String, String>>()).anyTimes();
+      new HashMap<>()).anyTimes();
 
     replay(configHelper);
 
@@ -620,7 +620,7 @@ public class UpgradeResourceProviderTest extends 
EasyMockSupport {
     RequestEntity requestEntity = new RequestEntity();
     requestEntity.setRequestId(2L);
     requestEntity.setClusterId(cluster.getClusterId());
-    requestEntity.setStages(new ArrayList<StageEntity>());
+    requestEntity.setStages(new ArrayList<>());
     requestDao.create(requestEntity);
 
     UpgradeEntity upgradeEntity = new UpgradeEntity();

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UpgradeSummaryResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UpgradeSummaryResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UpgradeSummaryResourceProviderTest.java
index 353481c..4834ef8 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UpgradeSummaryResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UpgradeSummaryResourceProviderTest.java
@@ -215,7 +215,7 @@ public class UpgradeSummaryResourceProviderTest {
     hrc1.setRoleCommand(RoleCommand.RESTART);
     hrc1.setHostEntity(h1);
 
-    stageEntity.setHostRoleCommands(new ArrayList<HostRoleCommandEntity>());
+    stageEntity.setHostRoleCommands(new ArrayList<>());
     stageEntity.getHostRoleCommands().add(hrc1);
     h1.getHostRoleCommandEntities().add(hrc1);
 
@@ -262,7 +262,7 @@ public class UpgradeSummaryResourceProviderTest {
     requestEntity.setRequestId(1L);
     requestEntity.setClusterId(cluster.getClusterId());
     requestEntity.setStatus(HostRoleStatus.PENDING);
-    requestEntity.setStages(new ArrayList<StageEntity>());
+    requestEntity.setStages(new ArrayList<>());
     requestDAO.create(requestEntity);
 
     UpgradeEntity upgrade = new UpgradeEntity();
@@ -320,7 +320,7 @@ public class UpgradeSummaryResourceProviderTest {
     hrc2.setCommandDetail("Restart ZOOKEEPER_SERVER");
     hrc2.setHostEntity(h1);
 
-    nextStage.setHostRoleCommands(new ArrayList<HostRoleCommandEntity>());
+    nextStage.setHostRoleCommands(new ArrayList<>());
     nextStage.getHostRoleCommands().add(hrc2);
     h1.getHostRoleCommandEntities().add(hrc2);
 

http://git-wip-us.apache.org/repos/asf/ambari/blob/ab8d58ba/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UserAuthorizationResourceProviderTest.java
----------------------------------------------------------------------
diff --git 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UserAuthorizationResourceProviderTest.java
 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UserAuthorizationResourceProviderTest.java
index 4c52e11..8051423 100644
--- 
a/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UserAuthorizationResourceProviderTest.java
+++ 
b/ambari-server/src/test/java/org/apache/ambari/server/controller/internal/UserAuthorizationResourceProviderTest.java
@@ -288,7 +288,7 @@ public class UserAuthorizationResourceProviderTest extends 
EasyMockSupport {
 
     PermissionEntity emptyPermissionEntity = 
createMock(PermissionEntity.class);
     expect(emptyPermissionEntity.getAuthorizations())
-        .andReturn(Collections.<RoleAuthorizationEntity>emptyList())
+        .andReturn(Collections.emptyList())
         .anyTimes();
 
     PermissionEntity nullPermissionEntity = createMock(PermissionEntity.class);

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