HADOOP-9649. Promoted YARN service life-cycle libraries into Hadoop Common for usage across all Hadoop projects. Contributed by Zhijie Shen.

svn merge --ignore-ancestry -c 1493650 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.1-beta@1493653 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -105,6 +105,9 @@ Release 2.1.0-beta - UNRELEASED
     HADOOP-9625. HADOOP_OPTS not picked up by hadoop command.
     (Paul Han via arpit)
 
+    HADOOP-9649. Promoted YARN service life-cycle libraries into Hadoop Common
+    for usage across all Hadoop projects. (Zhijie Shen via vinodkv)
+
   OPTIMIZATIONS
 
     HADOOP-9150. Avoid unnecessary DNS resolution attempts for logical URIs

hadoop-common-project/hadoop-common/dev-support/findbugsExcludeFile.xml

@@ -320,4 +320,17 @@
        <Field name="in" />
        <Bug pattern="IS2_INCONSISTENT_SYNC" />
      </Match>
+
+     <!-- Synchronization performed on util.concurrent instance. -->
+     <Match>
+       <Class name="org.apache.hadoop.service.AbstractService" />
+       <Method name="stop" />
+       <Bug code="JLM" />
+     </Match>
+
+     <Match>
+       <Class name="org.apache.hadoop.service.AbstractService" />
+       <Method name="waitForServiceToStop" />
+       <Bug code="JLM" />
+     </Match>
  </FindBugsFilter>

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/service/AbstractService.java → hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/AbstractService.java

@@ -16,7 +16,7 @@
 * limitations under the License.
 */
 
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -34,7 +34,7 @@ import org.apache.hadoop.conf.Configuration;
 import com.google.common.annotations.VisibleForTesting;
 
 /**
- * This is the base implementation class for YARN services.
+ * This is the base implementation class for services.
  */
 @Public
 @Evolving

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/service/CompositeService.java → hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/CompositeService.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 
 import java.util.ArrayList;
 import java.util.Collections;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/service/LifecycleEvent.java → hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/LifecycleEvent.java

@@ -15,7 +15,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 
 import java.io.Serializable;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/service/LoggingStateChangeListener.java → hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/LoggingStateChangeListener.java

@@ -16,7 +16,7 @@
  *  limitations under the License.
  */
 
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/service/Service.java → hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/Service.java

@@ -16,7 +16,7 @@
 * limitations under the License.
 */
 
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability.Evolving;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/service/ServiceOperations.java → hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/ServiceOperations.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 
 import java.util.ArrayList;
 import java.util.List;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/service/ServiceStateChangeListener.java → hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/ServiceStateChangeListener.java

@@ -16,7 +16,7 @@
 * limitations under the License.
 */
 
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability.Stable;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/service/ServiceStateException.java → hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/ServiceStateException.java

@@ -16,19 +16,17 @@
  *  limitations under the License.
  */
 
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability.Evolving;
-import org.apache.hadoop.yarn.exceptions.YarnException;
-import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 
 /**
  * Exception that is raised on state change operations.
  */
 @Public
 @Evolving
-public class ServiceStateException extends YarnRuntimeException {
+public class ServiceStateException extends RuntimeException {
 
   private static final long serialVersionUID = 1110000352259232646L;
 
@@ -46,9 +44,8 @@ public class ServiceStateException extends YarnRuntimeException {
 
   /**
    * Convert any exception into a {@link RuntimeException}.
-   * If the caught exception already is of that type -including
-   * a {@link YarnException} it is typecast to a {@link RuntimeException}
-   * and returned.
+   * If the caught exception is already of that type, it is typecast to a
+   * {@link RuntimeException} and returned.
    *
    * All other exception types are wrapped in a new instance of
    * ServiceStateException
@@ -65,9 +62,8 @@ public class ServiceStateException extends YarnRuntimeException {
 
   /**
    * Convert any exception into a {@link RuntimeException}.
-   * If the caught exception already is of that type -including
-   * a {@link YarnException} it is typecast to a {@link RuntimeException}
-   * and returned.
+   * If the caught exception is already of that type, it is typecast to a
+   * {@link RuntimeException} and returned.
    *
    * All other exception types are wrapped in a new instance of
    * ServiceStateException

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/service/ServiceStateModel.java → hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/ServiceStateModel.java

@@ -16,13 +16,13 @@
  *  limitations under the License.
  */
 
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability.Evolving;
 
 /**
- * Implements the service state model for YARN.
+ * Implements the service state model.
  */
 @Public
 @Evolving

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/service/package-info.java → hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/package-info.java

@@ -16,6 +16,6 @@
  * limitations under the License.
  */
 @InterfaceAudience.Public
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 import org.apache.hadoop.classification.InterfaceAudience;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/service/BreakableService.java → hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/service/BreakableService.java

@@ -17,9 +17,11 @@
  */
 
 
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.AbstractService;
+import org.apache.hadoop.service.Service;
 
 /**
  * This is a service that can be configured to break on any of the lifecycle

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/service/BreakableStateChangeListener.java → hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/service/BreakableStateChangeListener.java

@@ -16,11 +16,14 @@
  *  limitations under the License.
  */
 
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 
 import java.util.ArrayList;
 import java.util.List;
 
+import org.apache.hadoop.service.Service;
+import org.apache.hadoop.service.ServiceStateChangeListener;
+
 /**
  * A state change listener that logs the number of state change events received,
  * and the last state invoked.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/service/ServiceAssert.java → hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/service/ServiceAssert.java

@@ -16,8 +16,9 @@
  * limitations under the License.
  */
 
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 
+import org.apache.hadoop.service.Service;
 import org.junit.Assert;
 
 /**

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/service/TestGlobalStateChangeListener.java → hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/service/TestGlobalStateChangeListener.java

@@ -16,9 +16,13 @@
  *  limitations under the License.
  */
 
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.AbstractService;
+import org.apache.hadoop.service.LoggingStateChangeListener;
+import org.apache.hadoop.service.Service;
+import org.apache.hadoop.service.ServiceStateChangeListener;
 import org.junit.After;
 import org.junit.Test;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/service/TestServiceLifecycle.java → hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/service/TestServiceLifecycle.java

@@ -17,11 +17,16 @@
  */
 
 
-package org.apache.hadoop.yarn.service;
+package org.apache.hadoop.service;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.AbstractService;
+import org.apache.hadoop.service.LoggingStateChangeListener;
+import org.apache.hadoop.service.Service;
+import org.apache.hadoop.service.ServiceStateChangeListener;
+import org.apache.hadoop.service.ServiceStateException;
 import org.junit.Test;
 
 public class TestServiceLifecycle extends ServiceAssert {

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/LocalContainerLauncher.java

@@ -47,11 +47,11 @@ import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEventType;
 import org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncher;
 import org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherEvent;
 import org.apache.hadoop.mapreduce.v2.app.launcher.ContainerRemoteLaunchEvent;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.api.ApplicationConstants;
 import org.apache.hadoop.yarn.api.ApplicationConstants.Environment;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 /**
  * Runs the container task locally in a thread.

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/TaskAttemptListenerImpl.java

@@ -51,9 +51,9 @@ import org.apache.hadoop.mapreduce.v2.app.rm.RMHeartbeatHandler;
 import org.apache.hadoop.mapreduce.v2.app.security.authorize.MRAMPolicyProvider;
 import org.apache.hadoop.net.NetUtils;
 import org.apache.hadoop.security.authorize.PolicyProvider;
+import org.apache.hadoop.service.CompositeService;
 import org.apache.hadoop.util.StringInterner;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.CompositeService;
 
 /**
  * This class is responsible for talking to the task umblical.

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/jobhistory/JobHistoryCopyService.java

@@ -29,10 +29,10 @@ import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.mapreduce.TypeConverter;
 import org.apache.hadoop.mapreduce.v2.api.records.JobId;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils;
+import org.apache.hadoop.service.CompositeService;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.CompositeService;
 
 /**
  * Reads in history events from the JobHistoryFile and sends them out again

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/jobhistory/JobHistoryEventHandler.java

@@ -52,9 +52,9 @@ import org.apache.hadoop.mapreduce.v2.jobhistory.FileNameIndexUtils;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JobIndexInfo;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 /**
  * The job history events get routed to this class. This class writes the Job

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/MRAppMaster.java

@@ -108,6 +108,10 @@ import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
 import org.apache.hadoop.security.Credentials;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.token.Token;
+import org.apache.hadoop.service.AbstractService;
+import org.apache.hadoop.service.CompositeService;
+import org.apache.hadoop.service.Service;
+import org.apache.hadoop.service.ServiceOperations;
 import org.apache.hadoop.util.ReflectionUtils;
 import org.apache.hadoop.util.ShutdownHookManager;
 import org.apache.hadoop.util.StringInterner;
@@ -123,12 +127,8 @@ import org.apache.hadoop.yarn.event.AsyncDispatcher;
 import org.apache.hadoop.yarn.event.Dispatcher;
 import org.apache.hadoop.yarn.event.Event;
 import org.apache.hadoop.yarn.event.EventHandler;
-import org.apache.hadoop.yarn.security.ApplicationTokenIdentifier;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.AbstractService;
-import org.apache.hadoop.yarn.service.CompositeService;
-import org.apache.hadoop.yarn.service.Service;
-import org.apache.hadoop.yarn.service.ServiceOperations;
+import org.apache.hadoop.yarn.security.ApplicationTokenIdentifier;
 import org.apache.hadoop.yarn.util.Clock;
 import org.apache.hadoop.yarn.util.ConverterUtils;
 import org.apache.hadoop.yarn.util.SystemClock;

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/TaskHeartbeatHandler.java

@@ -31,8 +31,8 @@ import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId;
 import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptDiagnosticsUpdateEvent;
 import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEvent;
 import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEventType;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.event.EventHandler;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.apache.hadoop.yarn.util.Clock;
 
 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/client/MRClientService.java

@@ -81,12 +81,12 @@ import org.apache.hadoop.mapreduce.v2.app.webapp.AMWebApp;
 import org.apache.hadoop.net.NetUtils;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.authorize.PolicyProvider;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.ApplicationConstants;
 import org.apache.hadoop.yarn.factories.RecordFactory;
 import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
 import org.apache.hadoop.yarn.ipc.YarnRPC;
 import org.apache.hadoop.yarn.security.client.ClientToAMTokenSecretManager;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.apache.hadoop.yarn.webapp.WebApp;
 import org.apache.hadoop.yarn.webapp.WebApps;
 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/commit/CommitterEventHandler.java

@@ -47,10 +47,10 @@ import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEventType;
 import org.apache.hadoop.mapreduce.v2.app.rm.RMHeartbeatHandler;
 import org.apache.hadoop.mapreduce.v2.util.MRApps;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 import com.google.common.util.concurrent.ThreadFactoryBuilder;
 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/launcher/ContainerLauncherImpl.java

@@ -47,6 +47,7 @@ import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEventType;
 import org.apache.hadoop.net.NetUtils;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.token.Token;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.api.ContainerManagementProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.StartContainerRequest;
@@ -57,7 +58,6 @@ import org.apache.hadoop.yarn.api.records.ContainerLaunchContext;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.ipc.YarnRPC;
 import org.apache.hadoop.yarn.security.ContainerTokenIdentifier;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.apache.hadoop.yarn.util.ProtoUtils;
 import org.apache.hadoop.yarn.util.Records;
 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/rm/RMCommunicator.java

@@ -39,6 +39,7 @@ import org.apache.hadoop.mapreduce.v2.app.job.JobStateInternal;
 import org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.ApplicationMasterProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.FinishApplicationMasterRequest;
 import org.apache.hadoop.yarn.api.protocolrecords.RegisterApplicationMasterRequest;
@@ -54,7 +55,6 @@ import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.factories.RecordFactory;
 import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
 import org.apache.hadoop.yarn.ipc.YarnRPC;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 /**
  * Registers/unregisters to RM and sends heartbeats to RM.

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/speculate/DefaultSpeculator.java

@@ -44,12 +44,12 @@ import org.apache.hadoop.mapreduce.v2.app.AppContext;
 import org.apache.hadoop.mapreduce.v2.app.job.Job;
 import org.apache.hadoop.mapreduce.v2.app.job.Task;
 import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
+import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptStatusUpdateEvent.TaskAttemptStatus;
 import org.apache.hadoop.mapreduce.v2.app.job.event.TaskEvent;
 import org.apache.hadoop.mapreduce.v2.app.job.event.TaskEventType;
-import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptStatusUpdateEvent.TaskAttemptStatus;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.apache.hadoop.yarn.util.Clock;
 
 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/MRApp.java

@@ -84,6 +84,7 @@ import org.apache.hadoop.net.NetUtils;
 import org.apache.hadoop.security.Credentials;
 import org.apache.hadoop.security.SecurityUtil;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.service.Service;
 import org.apache.hadoop.yarn.ClusterInfo;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
@@ -95,7 +96,6 @@ import org.apache.hadoop.yarn.api.records.Token;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.security.ContainerTokenIdentifier;
-import org.apache.hadoop.yarn.service.Service;
 import org.apache.hadoop.yarn.state.StateMachine;
 import org.apache.hadoop.yarn.state.StateMachineFactory;
 import org.apache.hadoop.yarn.util.Clock;

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/MRAppBenchmark.java

@@ -33,6 +33,7 @@ import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptContainerAssigned
 import org.apache.hadoop.mapreduce.v2.app.rm.ContainerAllocator;
 import org.apache.hadoop.mapreduce.v2.app.rm.ContainerAllocatorEvent;
 import org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.ApplicationMasterProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest;
 import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse;
@@ -48,7 +49,6 @@ import org.apache.hadoop.yarn.api.records.ResourceRequest;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.factories.RecordFactory;
 import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.apache.hadoop.yarn.util.Records;
 import org.apache.log4j.Level;
 import org.apache.log4j.LogManager;

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestRuntimeEstimators.java

@@ -63,6 +63,7 @@ import org.apache.hadoop.mapreduce.v2.app.speculate.SpeculatorEvent;
 import org.apache.hadoop.mapreduce.v2.app.speculate.TaskRuntimeEstimator;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.authorize.AccessControlList;
+import org.apache.hadoop.service.CompositeService;
 import org.apache.hadoop.yarn.ClusterInfo;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
@@ -72,7 +73,6 @@ import org.apache.hadoop.yarn.event.AsyncDispatcher;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.factories.RecordFactory;
 import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
-import org.apache.hadoop.yarn.service.CompositeService;
 import org.apache.hadoop.yarn.util.Clock;
 import org.apache.hadoop.yarn.util.SystemClock;
 import org.junit.Assert;

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestStagingCleanup.java

@@ -49,14 +49,14 @@ import org.apache.hadoop.mapreduce.v2.app.rm.RMHeartbeatHandler;
 import org.apache.hadoop.mapreduce.v2.util.MRApps;
 import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.service.AbstractService;
+import org.apache.hadoop.service.Service;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.factories.RecordFactory;
 import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
-import org.apache.hadoop.yarn.service.AbstractService;
-import org.apache.hadoop.yarn.service.Service;
 import org.junit.Test;
 
 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/CachedHistoryStorage.java

@@ -37,8 +37,8 @@ import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.JobsInfo;
 import org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.HistoryFileInfo;
 import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.JobInfo;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JHAdminConfig;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 /**
  * Manages an in memory cache of parsed Job History files.

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/HistoryClientService.java

@@ -79,10 +79,10 @@ import org.apache.hadoop.net.NetUtils;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.UserGroupInformation.AuthenticationMethod;
 import org.apache.hadoop.security.token.Token;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.factories.RecordFactory;
 import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
 import org.apache.hadoop.yarn.ipc.YarnRPC;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.apache.hadoop.yarn.util.Records;
 import org.apache.hadoop.yarn.webapp.WebApp;
 import org.apache.hadoop.yarn.webapp.WebApps;

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/HistoryFileManager.java

@@ -61,8 +61,8 @@ import org.apache.hadoop.mapreduce.v2.jobhistory.FileNameIndexUtils;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JHAdminConfig;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JobIndexInfo;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.util.concurrent.ThreadFactoryBuilder;

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/JobHistory.java

@@ -38,6 +38,8 @@ import org.apache.hadoop.mapreduce.v2.app.job.Job;
 import org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.HistoryFileInfo;
 import org.apache.hadoop.mapreduce.v2.hs.webapp.dao.JobsInfo;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JHAdminConfig;
+import org.apache.hadoop.service.AbstractService;
+import org.apache.hadoop.service.Service;
 import org.apache.hadoop.util.ReflectionUtils;
 import org.apache.hadoop.yarn.ClusterInfo;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
@@ -45,8 +47,6 @@ import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
-import org.apache.hadoop.yarn.service.AbstractService;
-import org.apache.hadoop.yarn.service.Service;
 import org.apache.hadoop.yarn.util.Clock;
 
 import com.google.common.util.concurrent.ThreadFactoryBuilder;

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/JobHistoryServer.java

@@ -30,6 +30,7 @@ import org.apache.hadoop.mapreduce.v2.jobhistory.JHAdminConfig;
 import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
 import org.apache.hadoop.metrics2.source.JvmMetrics;
 import org.apache.hadoop.security.SecurityUtil;
+import org.apache.hadoop.service.CompositeService;
 import org.apache.hadoop.util.ShutdownHookManager;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.YarnUncaughtExceptionHandler;
@@ -37,7 +38,6 @@ import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.event.Dispatcher;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.logaggregation.AggregatedLogDeletionService;
-import org.apache.hadoop.yarn.service.CompositeService;
 
 /******************************************************************
  * {@link JobHistoryServer} is responsible for servicing all job history

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/TestJobHistoryEvents.java

@@ -40,9 +40,9 @@ import org.apache.hadoop.mapreduce.v2.app.MRApp;
 import org.apache.hadoop.mapreduce.v2.app.job.Job;
 import org.apache.hadoop.mapreduce.v2.app.job.Task;
 import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
+import org.apache.hadoop.service.Service;
 import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.event.EventHandler;
-import org.apache.hadoop.yarn.service.Service;
 import org.junit.Test;
 
 public class TestJobHistoryEvents {

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/TestJobHistoryParsing.java

@@ -75,8 +75,8 @@ import org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JobIndexInfo;
 import org.apache.hadoop.net.DNSToSwitchMapping;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.service.Service;
 import org.apache.hadoop.yarn.api.records.ContainerId;
-import org.apache.hadoop.yarn.service.Service;
 import org.apache.hadoop.yarn.util.RackResolver;
 import org.junit.Test;
 import org.mockito.Mockito;

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/TestJobHistoryServer.java

@@ -45,11 +45,11 @@ import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
 import org.apache.hadoop.mapreduce.v2.hs.TestJobHistoryEvents.MRAppWithHistory;
 import org.apache.hadoop.mapreduce.v2.hs.TestJobHistoryParsing.MyResolver;
 import org.apache.hadoop.net.DNSToSwitchMapping;
+import org.apache.hadoop.service.Service;
+import org.apache.hadoop.service.Service.STATE;
 import org.apache.hadoop.util.ExitUtil;
 import org.apache.hadoop.yarn.factories.RecordFactory;
 import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
-import org.apache.hadoop.yarn.service.Service;
-import org.apache.hadoop.yarn.service.Service.STATE;
 import org.apache.hadoop.yarn.util.RackResolver;
 import org.junit.After;
 import org.junit.Test;

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/MiniMRYarnClusterAdapter.java

@@ -23,8 +23,8 @@ import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.mapreduce.v2.MiniMRYarnCluster;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JHAdminConfig;
+import org.apache.hadoop.service.Service.STATE;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
-import org.apache.hadoop.yarn.service.Service.STATE;
 
 /**
  * An adapter for MiniMRYarnCluster providing a MiniMRClientCluster interface.

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestClientRedirect.java

@@ -68,6 +68,7 @@ import org.apache.hadoop.mapreduce.v2.api.records.JobState;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JHAdminConfig;
 import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
 import org.apache.hadoop.net.NetUtils;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.ApplicationClientProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.CancelDelegationTokenRequest;
 import org.apache.hadoop.yarn.api.protocolrecords.CancelDelegationTokenResponse;
@@ -102,7 +103,6 @@ import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.factories.RecordFactory;
 import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
 import org.apache.hadoop.yarn.ipc.YarnRPC;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.junit.Test;
 
 public class TestClientRedirect {

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/v2/MiniMRYarnCluster.java

@@ -34,14 +34,14 @@ import org.apache.hadoop.mapreduce.MRJobConfig;
 import org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JHAdminConfig;
 import org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils;
+import org.apache.hadoop.service.AbstractService;
+import org.apache.hadoop.service.Service;
 import org.apache.hadoop.util.JarFinder;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.server.MiniYARNCluster;
 import org.apache.hadoop.yarn.server.nodemanager.ContainerExecutor;
 import org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor;
-import org.apache.hadoop.yarn.service.AbstractService;
-import org.apache.hadoop.yarn.service.Service;
 
 /**
  * Configures and starts the MR-specific components in the YARN cluster.

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle/src/main/java/org/apache/hadoop/mapred/ShuffleHandler.java

@@ -73,11 +73,11 @@ import org.apache.hadoop.metrics2.lib.MutableCounterLong;
 import org.apache.hadoop.metrics2.lib.MutableGaugeInt;
 import org.apache.hadoop.security.ssl.SSLFactory;
 import org.apache.hadoop.security.token.Token;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.AuxServices;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.apache.hadoop.yarn.util.ConverterUtils;
 import org.jboss.netty.bootstrap.ServerBootstrap;
 import org.jboss.netty.buffer.ChannelBuffers;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/AMRMClient.java

@@ -27,6 +27,7 @@ import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceAudience.Private;
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse;
 import org.apache.hadoop.yarn.api.protocolrecords.RegisterApplicationMasterResponse;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
@@ -36,7 +37,6 @@ import org.apache.hadoop.yarn.api.records.Priority;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.api.records.Token;
 import org.apache.hadoop.yarn.exceptions.YarnException;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 import com.google.common.collect.ImmutableList;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/AMRMClientAsync.java

@@ -32,6 +32,7 @@ import org.apache.hadoop.classification.InterfaceAudience.Private;
 import org.apache.hadoop.classification.InterfaceStability.Evolving;
 import org.apache.hadoop.classification.InterfaceStability.Unstable;
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse;
 import org.apache.hadoop.yarn.api.protocolrecords.RegisterApplicationMasterResponse;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
@@ -46,7 +47,6 @@ import org.apache.hadoop.yarn.api.records.Token;
 import org.apache.hadoop.yarn.client.AMRMClient.ContainerRequest;
 import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 import com.google.common.annotations.VisibleForTesting;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/NMClient.java

@@ -26,6 +26,7 @@ import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.classification.InterfaceAudience.Private;
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.records.Container;
 import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.api.records.ContainerLaunchContext;
@@ -33,7 +34,6 @@ import org.apache.hadoop.yarn.api.records.ContainerStatus;
 import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.Token;
 import org.apache.hadoop.yarn.exceptions.YarnException;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 @InterfaceAudience.Public
 @InterfaceStability.Unstable

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/NMClientAsync.java

@@ -42,6 +42,7 @@ import org.apache.hadoop.classification.InterfaceAudience.Private;
 import org.apache.hadoop.classification.InterfaceStability.Evolving;
 import org.apache.hadoop.classification.InterfaceStability.Unstable;
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.records.Container;
 import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.api.records.ContainerLaunchContext;
@@ -53,7 +54,6 @@ import org.apache.hadoop.yarn.event.AbstractEvent;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.ipc.RPCUtil;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.apache.hadoop.yarn.state.InvalidStateTransitonException;
 import org.apache.hadoop.yarn.state.MultipleArcTransition;
 import org.apache.hadoop.yarn.state.SingleArcTransition;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/NMClientImpl.java

@@ -32,6 +32,7 @@ import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.ipc.RPC;
 import org.apache.hadoop.net.NetUtils;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.ContainerManagementProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.GetContainerStatusRequest;
 import org.apache.hadoop.yarn.api.protocolrecords.GetContainerStatusResponse;
@@ -48,7 +49,6 @@ import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.ipc.RPCUtil;
 import org.apache.hadoop.yarn.ipc.YarnRPC;
 import org.apache.hadoop.yarn.security.ContainerTokenIdentifier;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.apache.hadoop.yarn.util.ProtoUtils;
 import org.apache.hadoop.yarn.util.Records;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/YarnClient.java

@@ -27,6 +27,7 @@ import org.apache.hadoop.classification.InterfaceAudience.Private;
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability;
 import org.apache.hadoop.io.Text;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.protocolrecords.GetNewApplicationResponse;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.ApplicationReport;
@@ -37,7 +38,6 @@ import org.apache.hadoop.yarn.api.records.QueueUserACLInfo;
 import org.apache.hadoop.yarn.api.records.Token;
 import org.apache.hadoop.yarn.api.records.YarnClusterMetrics;
 import org.apache.hadoop.yarn.exceptions.YarnException;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 @InterfaceAudience.Public
 @InterfaceStability.Evolving

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

@@ -35,6 +35,7 @@ import java.util.concurrent.ConcurrentHashMap;
 import junit.framework.Assert;
 
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.Service.STATE;
 import org.apache.hadoop.yarn.api.ApplicationMasterProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest;
 import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse;
@@ -61,7 +62,6 @@ import org.apache.hadoop.yarn.client.AMRMClient.StoredContainerRequest;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.server.MiniYARNCluster;
-import org.apache.hadoop.yarn.service.Service.STATE;
 import org.apache.hadoop.yarn.util.Records;
 import org.junit.After;
 import org.junit.AfterClass;

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

@@ -24,11 +24,11 @@ import java.io.PrintStream;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.Service.STATE;
 import org.apache.hadoop.tools.GetGroupsTestBase;
 import org.apache.hadoop.util.Tool;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
-import org.apache.hadoop.yarn.service.Service.STATE;
 import org.junit.AfterClass;
 import org.junit.Before;
 import org.junit.BeforeClass;

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

@@ -33,6 +33,7 @@ import java.util.TreeSet;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.io.DataOutputBuffer;
 import org.apache.hadoop.security.Credentials;
+import org.apache.hadoop.service.Service.STATE;
 import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse;
 import org.apache.hadoop.yarn.api.protocolrecords.GetNewApplicationResponse;
 import org.apache.hadoop.yarn.api.protocolrecords.SubmitApplicationRequest;
@@ -54,7 +55,6 @@ import org.apache.hadoop.yarn.client.AMRMClient.ContainerRequest;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.server.MiniYARNCluster;
-import org.apache.hadoop.yarn.service.Service.STATE;
 import org.apache.hadoop.yarn.util.Records;
 import org.junit.After;
 import org.junit.Before;

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

@@ -39,6 +39,7 @@ import java.util.concurrent.atomic.AtomicIntegerArray;
 import junit.framework.Assert;
 
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.ServiceOperations;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.Container;
@@ -52,7 +53,6 @@ import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.factories.RecordFactory;
 import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
 import org.apache.hadoop.yarn.ipc.RPCUtil;
-import org.apache.hadoop.yarn.service.ServiceOperations;
 import org.junit.After;
 import org.junit.Test;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/event/AsyncDispatcher.java

@@ -30,9 +30,9 @@ import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability.Evolving;
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.util.ShutdownHookManager;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 /**
  * Dispatches {@link Event}s in a separate thread. Currently only single thread

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/logaggregation/AggregatedLogDeletionService.java

@@ -30,8 +30,8 @@ import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.security.AccessControlException;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 /**
  * A service that periodically deletes aggregated logs.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/AbstractLivelinessMonitor.java

@@ -26,7 +26,7 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability.Evolving;
-import org.apache.hadoop.yarn.service.AbstractService;
+import org.apache.hadoop.service.AbstractService;
 
 /**
  * A simple liveliness monitor with which clients can register, trust the

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestCompositeService.java

@@ -24,12 +24,12 @@ import static org.junit.Assert.fail;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.yarn.service.BreakableService;
+import org.apache.hadoop.service.BreakableService;
+import org.apache.hadoop.service.CompositeService;
+import org.apache.hadoop.service.Service;
+import org.apache.hadoop.service.ServiceStateException;
+import org.apache.hadoop.service.Service.STATE;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.CompositeService;
-import org.apache.hadoop.yarn.service.Service;
-import org.apache.hadoop.yarn.service.Service.STATE;
-import org.apache.hadoop.yarn.service.ServiceStateException;
 import org.junit.Before;
 import org.junit.Test;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/DeletionService.java

@@ -29,8 +29,8 @@ import org.apache.hadoop.classification.InterfaceAudience.Private;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileContext;
 import org.apache.hadoop.fs.UnsupportedFileSystemException;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/LocalDirsHandlerService.java

@@ -32,10 +32,10 @@ import org.apache.hadoop.fs.FileContext;
 import org.apache.hadoop.fs.LocalDirAllocator;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 /**
  * The class which provides functionality of checking the health of the local

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/NodeHealthCheckerService.java

@@ -19,7 +19,7 @@
 package org.apache.hadoop.yarn.server.nodemanager;
 
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.yarn.service.CompositeService;
+import org.apache.hadoop.service.CompositeService;
 
 /**
  * The class which provides functionality of checking the health of the node and

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/NodeHealthScriptRunner.java

@@ -29,11 +29,11 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileUtil;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.util.Shell.ExitCodeException;
 import org.apache.hadoop.util.Shell.ShellCommandExecutor;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 /**
  * 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/NodeManager.java

@@ -32,6 +32,7 @@ import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
 import org.apache.hadoop.security.SecurityUtil;
+import org.apache.hadoop.service.CompositeService;
 import org.apache.hadoop.util.ReflectionUtils;
 import org.apache.hadoop.util.ShutdownHookManager;
 import org.apache.hadoop.util.StringUtils;
@@ -55,7 +56,6 @@ import org.apache.hadoop.yarn.server.nodemanager.security.NMContainerTokenSecret
 import org.apache.hadoop.yarn.server.nodemanager.security.NMTokenSecretManagerInNM;
 import org.apache.hadoop.yarn.server.nodemanager.webapp.WebServer;
 import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
-import org.apache.hadoop.yarn.service.CompositeService;
 
 import com.google.common.annotations.VisibleForTesting;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/NodeResourceMonitor.java

@@ -18,7 +18,7 @@
 
 package org.apache.hadoop.yarn.server.nodemanager;
 
-import org.apache.hadoop.yarn.service.Service;
+import org.apache.hadoop.service.Service;
 
 public interface NodeResourceMonitor extends Service {
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/NodeResourceMonitorImpl.java

@@ -18,7 +18,7 @@
 
 package org.apache.hadoop.yarn.server.nodemanager;
 
-import org.apache.hadoop.yarn.service.AbstractService;
+import org.apache.hadoop.service.AbstractService;
 
 public class NodeResourceMonitorImpl extends AbstractService implements
     NodeResourceMonitor {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/NodeStatusUpdater.java

@@ -18,8 +18,8 @@
 
 package org.apache.hadoop.yarn.server.nodemanager;
 
+import org.apache.hadoop.service.Service;
 import org.apache.hadoop.yarn.server.api.records.NodeStatus;
-import org.apache.hadoop.yarn.service.Service;
 
 public interface NodeStatusUpdater extends Service {
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/NodeStatusUpdaterImpl.java

@@ -34,6 +34,7 @@ import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.classification.InterfaceAudience.Private;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.api.records.ContainerState;
@@ -60,7 +61,6 @@ import org.apache.hadoop.yarn.server.api.records.NodeStatus;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container;
 import org.apache.hadoop.yarn.server.nodemanager.metrics.NodeManagerMetrics;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 import com.google.common.annotations.VisibleForTesting;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/AuxServices.java

@@ -28,13 +28,13 @@ import java.util.Map.Entry;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.AbstractService;
+import org.apache.hadoop.service.Service;
+import org.apache.hadoop.service.ServiceStateChangeListener;
 import org.apache.hadoop.util.ReflectionUtils;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.event.EventHandler;
-import org.apache.hadoop.yarn.service.AbstractService;
-import org.apache.hadoop.yarn.service.Service;
-import org.apache.hadoop.yarn.service.ServiceStateChangeListener;
 
 public class AuxServices extends AbstractService
     implements ServiceStateChangeListener, EventHandler<AuxServicesEvent> {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/ContainerManagerImpl.java

@@ -18,7 +18,7 @@
 
 package org.apache.hadoop.yarn.server.nodemanager.containermanager;
 
-import static org.apache.hadoop.yarn.service.Service.STATE.STARTED;
+import static org.apache.hadoop.service.Service.STATE.STARTED;
 
 import java.io.IOException;
 import java.net.InetSocketAddress;
@@ -40,6 +40,9 @@ import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.authorize.PolicyProvider;
 import org.apache.hadoop.security.token.Token;
 import org.apache.hadoop.security.token.TokenIdentifier;
+import org.apache.hadoop.service.CompositeService;
+import org.apache.hadoop.service.Service;
+import org.apache.hadoop.service.ServiceStateChangeListener;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.api.ContainerManagementProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.GetContainerStatusRequest;
@@ -100,9 +103,6 @@ import org.apache.hadoop.yarn.server.nodemanager.metrics.NodeManagerMetrics;
 import org.apache.hadoop.yarn.server.nodemanager.security.authorize.NMPolicyProvider;
 import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
 import org.apache.hadoop.yarn.server.utils.BuilderUtils;
-import org.apache.hadoop.yarn.service.CompositeService;
-import org.apache.hadoop.yarn.service.Service;
-import org.apache.hadoop.yarn.service.ServiceStateChangeListener;
 
 import com.google.common.annotations.VisibleForTesting;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/launcher/ContainersLauncher.java

@@ -31,6 +31,7 @@ import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileContext;
 import org.apache.hadoop.fs.UnsupportedFileSystemException;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.event.Dispatcher;
 import org.apache.hadoop.yarn.event.EventHandler;
@@ -41,7 +42,6 @@ import org.apache.hadoop.yarn.server.nodemanager.LocalDirsHandlerService;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.application.Application;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 import com.google.common.util.concurrent.ThreadFactoryBuilder;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/localizer/ResourceLocalizationService.java

@@ -64,6 +64,8 @@ import org.apache.hadoop.security.Credentials;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.token.Token;
 import org.apache.hadoop.security.token.TokenIdentifier;
+import org.apache.hadoop.service.AbstractService;
+import org.apache.hadoop.service.CompositeService;
 import org.apache.hadoop.util.DiskChecker;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
@@ -109,8 +111,6 @@ import org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.even
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.security.LocalizerTokenSecretManager;
 import org.apache.hadoop.yarn.server.nodemanager.security.authorize.NMPolicyProvider;
 import org.apache.hadoop.yarn.server.nodemanager.util.NodeManagerBuilderUtils;
-import org.apache.hadoop.yarn.service.AbstractService;
-import org.apache.hadoop.yarn.service.CompositeService;
 import org.apache.hadoop.yarn.util.ConverterUtils;
 import org.apache.hadoop.yarn.util.FSDownload;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/LogAggregationService.java

@@ -38,6 +38,7 @@ import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.permission.FsPermission;
 import org.apache.hadoop.security.Credentials;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.ApplicationAccessType;
 import org.apache.hadoop.yarn.api.records.ContainerId;
@@ -57,7 +58,6 @@ import org.apache.hadoop.yarn.server.nodemanager.containermanager.loghandler.eve
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.loghandler.event.LogHandlerAppStartedEvent;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.loghandler.event.LogHandlerContainerFinishedEvent;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.loghandler.event.LogHandlerEvent;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 import com.google.common.util.concurrent.ThreadFactoryBuilder;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/loghandler/NonAggregatingLogHandler.java

@@ -28,6 +28,7 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.event.Dispatcher;
@@ -38,7 +39,6 @@ import org.apache.hadoop.yarn.server.nodemanager.containermanager.application.Ap
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.loghandler.event.LogHandlerAppFinishedEvent;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.loghandler.event.LogHandlerAppStartedEvent;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.loghandler.event.LogHandlerEvent;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 import com.google.common.util.concurrent.ThreadFactoryBuilder;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/monitor/ContainersMonitor.java

@@ -18,9 +18,9 @@
 
 package org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor;
 
+import org.apache.hadoop.service.Service;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.server.nodemanager.ResourceView;
-import org.apache.hadoop.yarn.service.Service;
 
 public interface ContainersMonitor extends Service,
     EventHandler<ContainersMonitorEvent>, ResourceView {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/monitor/ContainersMonitorImpl.java

@@ -28,6 +28,7 @@ import java.util.Map.Entry;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.util.StringUtils.TraditionalBinaryPrefix;
 import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
@@ -36,7 +37,6 @@ import org.apache.hadoop.yarn.event.Dispatcher;
 import org.apache.hadoop.yarn.server.nodemanager.ContainerExecutor;
 import org.apache.hadoop.yarn.server.nodemanager.Context;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerKillEvent;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.apache.hadoop.yarn.util.ResourceCalculatorProcessTree;
 import org.apache.hadoop.yarn.util.ResourceCalculatorPlugin;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/webapp/WebServer.java

@@ -23,13 +23,13 @@ import static org.apache.hadoop.yarn.util.StringHelper.pajoin;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.server.nodemanager.Context;
 import org.apache.hadoop.yarn.server.nodemanager.LocalDirsHandlerService;
 import org.apache.hadoop.yarn.server.nodemanager.ResourceView;
 import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.apache.hadoop.yarn.webapp.GenericExceptionHandler;
 import org.apache.hadoop.yarn.webapp.WebApp;
 import org.apache.hadoop.yarn.webapp.WebApps;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/TestLocalDirsHandlerService.java

@@ -23,9 +23,9 @@ import java.io.IOException;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileUtil;
+import org.apache.hadoop.service.Service.STATE;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.Service.STATE;
 import org.junit.AfterClass;
 import org.junit.Assert;
 import org.junit.BeforeClass;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/TestNodeStatusUpdater.java

@@ -43,6 +43,8 @@ import org.apache.hadoop.fs.FileContext;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
 import org.apache.hadoop.net.NetUtils;
+import org.apache.hadoop.service.ServiceOperations;
+import org.apache.hadoop.service.Service.STATE;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.ContainerId;
@@ -80,8 +82,6 @@ import org.apache.hadoop.yarn.server.nodemanager.security.NMTokenSecretManagerIn
 import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
 import org.apache.hadoop.yarn.server.utils.BuilderUtils;
 import org.apache.hadoop.yarn.server.utils.YarnServerBuilderUtils;
-import org.apache.hadoop.yarn.service.Service.STATE;
-import org.apache.hadoop.yarn.service.ServiceOperations;
 import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/BaseContainerManagerTest.java

@@ -30,6 +30,7 @@ import org.apache.hadoop.fs.FileContext;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.UnsupportedFileSystemException;
 import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.service.Service.STATE;
 import org.apache.hadoop.yarn.api.ContainerManagementProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.GetContainerStatusRequest;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
@@ -61,7 +62,6 @@ import org.apache.hadoop.yarn.server.nodemanager.metrics.NodeManagerMetrics;
 import org.apache.hadoop.yarn.server.nodemanager.security.NMContainerTokenSecretManager;
 import org.apache.hadoop.yarn.server.nodemanager.security.NMTokenSecretManagerInNM;
 import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
-import org.apache.hadoop.yarn.service.Service.STATE;
 import org.junit.After;
 import org.junit.Before;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/TestAuxServices.java

@@ -18,9 +18,9 @@
 
 package org.apache.hadoop.yarn.server.nodemanager.containermanager;
 
-import static org.apache.hadoop.yarn.service.Service.STATE.INITED;
-import static org.apache.hadoop.yarn.service.Service.STATE.STARTED;
-import static org.apache.hadoop.yarn.service.Service.STATE.STOPPED;
+import static org.apache.hadoop.service.Service.STATE.INITED;
+import static org.apache.hadoop.service.Service.STATE.STARTED;
+import static org.apache.hadoop.service.Service.STATE.STOPPED;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
@@ -33,10 +33,10 @@ import java.util.Map;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.AbstractService;
+import org.apache.hadoop.service.Service;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
-import org.apache.hadoop.yarn.service.AbstractService;
-import org.apache.hadoop.yarn.service.Service;
 import org.junit.Test;
 
 public class TestAuxServices {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/AdminService.java

@@ -32,6 +32,7 @@ import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.authorize.AccessControlList;
 import org.apache.hadoop.security.authorize.PolicyProvider;
 import org.apache.hadoop.security.authorize.ProxyUsers;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.ResourceManagerAdministrationProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.RefreshAdminAclsRequest;
 import org.apache.hadoop.yarn.api.protocolrecords.RefreshAdminAclsResponse;
@@ -54,7 +55,6 @@ import org.apache.hadoop.yarn.ipc.YarnRPC;
 import org.apache.hadoop.yarn.server.resourcemanager.RMAuditLogger.AuditConstants;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
 import org.apache.hadoop.yarn.server.resourcemanager.security.authorize.RMPolicyProvider;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 public class AdminService extends AbstractService implements ResourceManagerAdministrationProtocol {
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ApplicationMasterService.java

@@ -35,6 +35,7 @@ import org.apache.hadoop.fs.CommonConfigurationKeysPublic;
 import org.apache.hadoop.ipc.Server;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.authorize.PolicyProvider;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.api.ApplicationMasterProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest;
@@ -78,7 +79,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerUtils;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.YarnScheduler;
 import org.apache.hadoop.yarn.server.resourcemanager.security.authorize.RMPolicyProvider;
 import org.apache.hadoop.yarn.server.utils.BuilderUtils;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 @SuppressWarnings("unchecked")
 @Private

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ClientRMService.java

@@ -38,6 +38,7 @@ import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.UserGroupInformation.AuthenticationMethod;
 import org.apache.hadoop.security.authorize.PolicyProvider;
 import org.apache.hadoop.security.token.Token;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.ApplicationClientProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.CancelDelegationTokenRequest;
 import org.apache.hadoop.yarn.api.protocolrecords.CancelDelegationTokenResponse;
@@ -89,7 +90,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.security.RMDelegationTokenS
 import org.apache.hadoop.yarn.server.resourcemanager.security.authorize.RMPolicyProvider;
 import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
 import org.apache.hadoop.yarn.server.utils.BuilderUtils;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.apache.hadoop.yarn.util.Records;
 
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/NodesListManager.java

@@ -28,6 +28,7 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.net.NetUtils;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.util.HostsFileReader;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.event.EventHandler;
@@ -36,7 +37,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppNodeUpdateEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppNodeUpdateEvent.RMAppNodeUpdateType;
 import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 @SuppressWarnings("unchecked")
 public class NodesListManager extends AbstractService implements

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java

@@ -30,6 +30,9 @@ import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
 import org.apache.hadoop.metrics2.source.JvmMetrics;
 import org.apache.hadoop.security.SecurityUtil;
+import org.apache.hadoop.service.AbstractService;
+import org.apache.hadoop.service.CompositeService;
+import org.apache.hadoop.service.Service;
 import org.apache.hadoop.util.ExitUtil;
 import org.apache.hadoop.util.ReflectionUtils;
 import org.apache.hadoop.util.ShutdownHookManager;
@@ -76,9 +79,6 @@ import org.apache.hadoop.yarn.server.webproxy.AppReportFetcher;
 import org.apache.hadoop.yarn.server.webproxy.ProxyUriUtils;
 import org.apache.hadoop.yarn.server.webproxy.WebAppProxy;
 import org.apache.hadoop.yarn.server.webproxy.WebAppProxyServlet;
-import org.apache.hadoop.yarn.service.AbstractService;
-import org.apache.hadoop.yarn.service.CompositeService;
-import org.apache.hadoop.yarn.service.Service;
 import org.apache.hadoop.yarn.webapp.WebApp;
 import org.apache.hadoop.yarn.webapp.WebApps;
 import org.apache.hadoop.yarn.webapp.WebApps.Builder;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceTrackerService.java

@@ -27,6 +27,7 @@ import org.apache.hadoop.fs.CommonConfigurationKeysPublic;
 import org.apache.hadoop.ipc.Server;
 import org.apache.hadoop.net.Node;
 import org.apache.hadoop.security.authorize.PolicyProvider;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
@@ -53,7 +54,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.security.RMContainerTokenSe
 import org.apache.hadoop.yarn.server.resourcemanager.security.NMTokenSecretManagerInRM;
 import org.apache.hadoop.yarn.server.resourcemanager.security.authorize.RMPolicyProvider;
 import org.apache.hadoop.yarn.server.utils.YarnServerBuilderUtils;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.apache.hadoop.yarn.util.RackResolver;
 
 public class ResourceTrackerService extends AbstractService implements

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/amlauncher/ApplicationMasterLauncher.java

@@ -24,10 +24,10 @@ import java.util.concurrent.TimeUnit;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 
 public class ApplicationMasterLauncher extends AbstractService implements

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/security/DelegationTokenRenewer.java

@@ -43,10 +43,10 @@ import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.security.Credentials;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.token.Token;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 import com.google.common.annotations.VisibleForTesting;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/ClusterInfo.java

@@ -21,9 +21,9 @@ import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 
+import org.apache.hadoop.service.Service.STATE;
 import org.apache.hadoop.util.VersionInfo;
 import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
-import org.apache.hadoop.yarn.service.Service.STATE;
 import org.apache.hadoop.yarn.util.YarnVersionInfo;
 
 @XmlRootElement

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestAppManager.java

@@ -29,6 +29,7 @@ import java.util.concurrent.ConcurrentMap;
 import junit.framework.Assert;
 
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.Service;
 import org.apache.hadoop.yarn.MockApps;
 import org.apache.hadoop.yarn.api.records.ApplicationAccessType;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
@@ -54,7 +55,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.YarnScheduler;
 import org.apache.hadoop.yarn.server.resourcemanager.security.ClientToAMTokenSecretManagerInRM;
 import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
-import org.apache.hadoop.yarn.service.Service;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestApplicationACLs.java

@@ -32,6 +32,7 @@ import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.authorize.AccessControlList;
+import org.apache.hadoop.service.Service.STATE;
 import org.apache.hadoop.yarn.api.ApplicationClientProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.GetAllApplicationsRequest;
 import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportRequest;
@@ -54,7 +55,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore;
 import org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStoreFactory;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppState;
 import org.apache.hadoop.yarn.server.utils.BuilderUtils;
-import org.apache.hadoop.yarn.service.Service.STATE;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
 import org.junit.Test;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/security/TestClientTokens.java

@@ -44,6 +44,7 @@ import org.apache.hadoop.security.token.Token;
 import org.apache.hadoop.security.token.TokenIdentifier;
 import org.apache.hadoop.security.token.TokenInfo;
 import org.apache.hadoop.security.token.TokenSelector;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.api.ApplicationConstants;
 import org.apache.hadoop.yarn.api.ContainerManagementProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportRequest;
@@ -69,7 +70,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.MockRM;
 import org.apache.hadoop.yarn.server.resourcemanager.MockRMWithCustomAMLauncher;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
 import org.apache.hadoop.yarn.server.utils.BuilderUtils;
-import org.apache.hadoop.yarn.service.AbstractService;
 import org.apache.hadoop.yarn.util.ProtoUtils;
 import org.apache.hadoop.yarn.util.Records;
 import org.junit.Test;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/TestRMWebServices.java

@@ -29,6 +29,7 @@ import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
 
 import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.service.Service.STATE;
 import org.apache.hadoop.util.VersionInfo;
 import org.apache.hadoop.yarn.api.records.QueueState;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
@@ -40,7 +41,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetrics;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler;
 import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
-import org.apache.hadoop.yarn.service.Service.STATE;
 import org.apache.hadoop.yarn.util.YarnVersionInfo;
 import org.apache.hadoop.yarn.webapp.GenericExceptionHandler;
 import org.apache.hadoop.yarn.webapp.WebServicesTestUtils;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/MiniYARNCluster.java

@@ -29,6 +29,8 @@ import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.FileContext;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
+import org.apache.hadoop.service.AbstractService;
+import org.apache.hadoop.service.CompositeService;
 import org.apache.hadoop.util.Shell;
 import org.apache.hadoop.util.Shell.ShellCommandExecutor;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
@@ -50,8 +52,6 @@ import org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdater;
 import org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl;
 import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
 import org.apache.hadoop.yarn.server.resourcemanager.ResourceTrackerService;
-import org.apache.hadoop.yarn.service.AbstractService;
-import org.apache.hadoop.yarn.service.CompositeService;
 
 public class MiniYARNCluster extends CompositeService {
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/WebAppProxy.java

@@ -25,10 +25,10 @@ import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.http.HttpServer;
 import org.apache.hadoop.security.authorize.AccessControlList;
+import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.AbstractService;
 
 import org.apache.hadoop.fs.CommonConfigurationKeys;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/WebAppProxyServer.java

@@ -24,12 +24,12 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.security.SecurityUtil;
+import org.apache.hadoop.service.CompositeService;
 import org.apache.hadoop.util.ShutdownHookManager;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.YarnUncaughtExceptionHandler;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
-import org.apache.hadoop.yarn.service.CompositeService;
 
 /**
  * ProxyServer will sit in between the end user and AppMaster

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/test/java/org/apache/hadoop/yarn/server/webproxy/TestWebAppProxyServer.java

@@ -20,9 +20,9 @@ package org.apache.hadoop.yarn.server.webproxy;
 
 import static org.junit.Assert.assertEquals;
 
+import org.apache.hadoop.service.Service.STATE;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.webproxy.WebAppProxyServer;
-import org.apache.hadoop.yarn.service.Service.STATE;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;