YARN-11142.Remove unused Imports in Hadoop YARN project (#4381). Contributed by Ashutosh Gupta.

Signed-off-by: Ayush Saxena <ayushsaxena@apache.org>

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/protocolrecords/GetLabelsToNodesResponse.java

@@ -24,7 +24,6 @@ import java.util.Set;
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability.Evolving;
 import org.apache.hadoop.yarn.api.records.NodeId;
-import org.apache.hadoop.yarn.api.records.NodeLabel;
 import org.apache.hadoop.yarn.util.Records;
 
 public abstract class GetLabelsToNodesResponse {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/protocolrecords/GetNewReservationResponse.java

@@ -20,7 +20,6 @@ package org.apache.hadoop.yarn.api.protocolrecords;
 
 import org.apache.hadoop.classification.InterfaceAudience.Private;
 import org.apache.hadoop.classification.InterfaceAudience.Public;
-import org.apache.hadoop.classification.InterfaceStability.Stable;
 import org.apache.hadoop.classification.InterfaceStability.Unstable;
 import org.apache.hadoop.yarn.api.records.ReservationId;
 import org.apache.hadoop.yarn.util.Records;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/Resource.java

@@ -19,7 +19,6 @@
 package org.apache.hadoop.yarn.api.records;
 
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
 
@@ -30,7 +29,6 @@ import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability;
 import org.apache.hadoop.classification.InterfaceStability.Evolving;
 import org.apache.hadoop.classification.InterfaceStability.Stable;
-import org.apache.hadoop.classification.InterfaceStability.Unstable;
 import org.apache.hadoop.util.StringUtils;
 import org.apache.hadoop.yarn.api.ApplicationMasterProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.ResourceTypes;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/exceptions/ApplicationAttemptNotFoundException.java

@@ -23,7 +23,6 @@ import org.apache.hadoop.classification.InterfaceStability.Unstable;
 import org.apache.hadoop.yarn.api.ApplicationHistoryProtocol;
 import org.apache.hadoop.yarn.api.ApplicationMasterProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest;
-import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationAttemptReportRequest;
 
 /**
  * This exception is thrown on

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/exceptions/ApplicationNotFoundException.java

@@ -21,7 +21,6 @@ package org.apache.hadoop.yarn.exceptions;
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability.Unstable;
 import org.apache.hadoop.yarn.api.ApplicationClientProtocol;
-import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportRequest;
 
 /**
  * This exception is thrown on

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/exceptions/ContainerNotFoundException.java

@@ -21,7 +21,6 @@ package org.apache.hadoop.yarn.exceptions;
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability.Unstable;
 import org.apache.hadoop.yarn.api.ApplicationHistoryProtocol;
-import org.apache.hadoop.yarn.api.protocolrecords.GetContainerReportRequest;
 
 /**
  * This exception is thrown on

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-catalog/hadoop-yarn-applications-catalog-webapp/src/test/java/org/apache/hadoop/yarn/appcatalog/application/EmbeddedSolrServerFactory.java

@@ -22,7 +22,6 @@ import org.apache.solr.client.solrj.SolrServerException;
 import org.apache.solr.client.solrj.embedded.EmbeddedSolrServer;
 import org.apache.solr.client.solrj.request.CoreAdminRequest;
 import org.apache.solr.core.NodeConfig;
-import org.apache.solr.core.SolrResourceLoader;
 
 import java.io.File;
 import java.io.IOException;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/src/main/java/org/apache/hadoop/yarn/applications/distributedshell/DistributedShellTimelinePlugin.java

@@ -23,7 +23,6 @@ import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.api.records.timeline.TimelineEntityGroupId;
 import org.apache.hadoop.yarn.server.timeline.NameValuePair;
 import org.apache.hadoop.yarn.server.timeline.TimelineEntityGroupPlugin;
-import org.apache.hadoop.yarn.util.ConverterUtils;
 
 import java.util.Collection;
 import java.util.HashSet;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/test/java/org/apache/hadoop/yarn/service/containerlaunch/TestAbstractLauncher.java

@@ -42,7 +42,6 @@ import static org.apache.hadoop.yarn.service.conf.YarnServiceConf
     .DEFAULT_CONTAINER_RETRY_MAX;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.reset;
-import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.verifyZeroInteractions;
 import static org.mockito.Mockito.when;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/AMRMTokenIdentifierForTest.java

@@ -25,11 +25,8 @@ import java.io.IOException;
 
 import org.apache.commons.io.IOUtils;
 import org.apache.hadoop.io.Text;
-import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
-import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.impl.pb.ApplicationAttemptIdPBImpl;
-import org.apache.hadoop.yarn.api.records.impl.pb.NodeIdPBImpl;
 import org.apache.hadoop.yarn.proto.YarnSecurityTestAMRMTokenProtos.AMRMTokenIdentifierForTestProto;
 import org.apache.hadoop.yarn.security.AMRMTokenIdentifier;
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/api/protocolrecords/impl/pb/GetLabelsToNodesResponsePBImpl.java

@@ -29,9 +29,7 @@ import java.util.Set;
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability.Evolving;
 import org.apache.hadoop.yarn.api.records.NodeId;
-import org.apache.hadoop.yarn.api.records.NodeLabel;
 import org.apache.hadoop.yarn.api.records.impl.pb.NodeIdPBImpl;
-import org.apache.hadoop.yarn.api.records.impl.pb.NodeLabelPBImpl;
 import org.apache.hadoop.yarn.proto.YarnProtos.NodeIdProto;
 import org.apache.hadoop.yarn.api.protocolrecords.GetLabelsToNodesResponse;
 import org.apache.hadoop.yarn.proto.YarnProtos.LabelsToNodeIdsProto;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/api/protocolrecords/impl/pb/GetNodesToLabelsResponsePBImpl.java

@@ -19,7 +19,6 @@
 package org.apache.hadoop.yarn.api.protocolrecords.impl.pb;
 
 import java.util.HashMap;
-import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
@@ -28,9 +27,7 @@ import java.util.Set;
 
 import org.apache.hadoop.util.Sets;
 import org.apache.hadoop.yarn.api.records.NodeId;
-import org.apache.hadoop.yarn.api.records.NodeLabel;
 import org.apache.hadoop.yarn.api.records.impl.pb.NodeIdPBImpl;
-import org.apache.hadoop.yarn.api.records.impl.pb.NodeLabelPBImpl;
 import org.apache.hadoop.yarn.proto.YarnProtos.NodeIdProto;
 import org.apache.hadoop.yarn.api.protocolrecords.GetNodesToLabelsResponse;
 import org.apache.hadoop.yarn.proto.YarnProtos.NodeIdToLabelsProto;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/api/records/impl/pb/ResourcePBImpl.java

@@ -27,7 +27,6 @@ import org.apache.hadoop.classification.InterfaceStability.Unstable;
 import org.apache.hadoop.yarn.api.protocolrecords.ResourceTypes;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.api.records.ResourceInformation;
-import org.apache.hadoop.yarn.exceptions.ResourceNotFoundException;
 import org.apache.hadoop.yarn.proto.YarnProtos.ResourceProto;
 import org.apache.hadoop.yarn.proto.YarnProtos.ResourceProtoOrBuilder;
 import org.apache.hadoop.yarn.proto.YarnProtos.ResourceInformationProto;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/logaggregation/filecontroller/ifile/IndexedFileAggregatedLogsBlock.java

@@ -23,7 +23,6 @@ import static org.apache.hadoop.yarn.webapp.YarnWebParams.CONTAINER_LOG_TYPE;
 import com.google.inject.Inject;
 import java.io.IOException;
 import java.io.InputStream;
-import java.nio.charset.Charset;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
@@ -49,7 +48,6 @@ import org.apache.hadoop.yarn.logaggregation.filecontroller.ifile.LogAggregation
 import org.apache.hadoop.yarn.logaggregation.filecontroller.ifile.LogAggregationIndexedFileController.IndexedLogsMeta;
 import org.apache.hadoop.yarn.logaggregation.filecontroller.ifile.LogAggregationIndexedFileController.IndexedPerAggregationLogMeta;
 import org.apache.hadoop.yarn.util.Times;
-import org.apache.hadoop.yarn.webapp.hamlet2.Hamlet;
 
 /**
  * The Aggregated Logs Block implementation for Indexed File.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/logaggregation/filecontroller/tfile/TFileAggregatedLogsBlock.java

@@ -22,7 +22,6 @@ import static org.apache.hadoop.yarn.webapp.YarnWebParams.CONTAINER_LOG_TYPE;
 
 import com.google.inject.Inject;
 import java.io.IOException;
-import java.io.InputStream;
 import java.util.Map;
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.conf.Configuration;
@@ -38,8 +37,6 @@ import org.apache.hadoop.yarn.logaggregation.AggregatedLogFormat;
 import org.apache.hadoop.yarn.logaggregation.LogAggregationUtils;
 import org.apache.hadoop.yarn.logaggregation.filecontroller.LogAggregationHtmlBlock;
 import org.apache.hadoop.yarn.util.Times;
-import org.apache.hadoop.yarn.webapp.hamlet2.Hamlet;
-import org.apache.hadoop.yarn.webapp.hamlet2.Hamlet.PRE;
 
 /**
  * The Aggregated Logs Block implementation for TFile.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/server/api/protocolrecords/impl/pb/UpdateNodeResourceRequestPBImpl.java

@@ -17,7 +17,6 @@
  */
 package org.apache.hadoop.yarn.server.api.protocolrecords.impl.pb;
 
-import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/server/security/ApplicationACLsManager.java

@@ -27,7 +27,6 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.apache.hadoop.classification.InterfaceAudience;
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.security.AccessControlException;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.security.authorize.AccessControlList;
 import org.apache.hadoop.yarn.api.records.ApplicationId;

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

@@ -23,7 +23,6 @@ import java.lang.reflect.Constructor;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.apache.hadoop.classification.InterfaceAudience.Public;
-import org.apache.hadoop.classification.InterfaceAudience.Private;
 import org.apache.hadoop.classification.InterfaceStability.Evolving;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.conf.Configured;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/webapp/view/TestCommonViews.java

@@ -28,7 +28,6 @@ import org.apache.hadoop.yarn.webapp.view.HeaderBlock;
 import org.apache.hadoop.yarn.webapp.view.JQueryUI;
 
 import org.junit.Test;
-import static org.mockito.Mockito.*;
 
 public class TestCommonViews {
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/webapp/NavBlock.java

@@ -21,7 +21,6 @@ package org.apache.hadoop.yarn.server.applicationhistoryservice.webapp;
 import com.google.inject.Inject;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.yarn.api.records.YarnApplicationState;
-import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.webapp.WebPageUtils;
 import org.apache.hadoop.yarn.util.Log4jWarningErrorMetricsAppender;
 import org.apache.hadoop.yarn.webapp.hamlet2.Hamlet;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/test/java/org/apache/hadoop/yarn/server/timeline/TimelineStoreTestUtils.java

@@ -28,7 +28,6 @@ import java.util.Collections;
 import java.util.EnumSet;
 import java.util.HashMap;
 import java.util.HashSet;
-import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/test/java/org/apache/hadoop/yarn/server/timeline/webapp/TestTimelineWebServicesWithSSL.java

@@ -35,7 +35,6 @@ import org.apache.hadoop.yarn.client.api.impl.TimelineClientImpl;
 import org.apache.hadoop.yarn.client.api.impl.TimelineWriter;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryServer;
-import org.apache.hadoop.yarn.server.applicationhistoryservice.webapp.AHSWebApp;
 import org.apache.hadoop.yarn.server.timeline.MemoryTimelineStore;
 import org.apache.hadoop.yarn.server.timeline.TimelineReader.Field;
 import org.apache.hadoop.yarn.server.timeline.TimelineStore;

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

@@ -21,7 +21,6 @@ package org.apache.hadoop.yarn.server.nodemanager.containermanager;
 import java.nio.ByteBuffer;
 
 import org.apache.hadoop.yarn.api.records.ApplicationId;
-import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.event.AbstractEvent;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.container
     .Container;

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

@@ -36,7 +36,6 @@ import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Cont
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerExitEvent;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.deletion.task.DockerContainerDeletionTask;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.DockerLinuxContainerRuntime;
-import org.apache.hadoop.yarn.server.nodemanager.executor.ContainerReapContext;
 import org.apache.hadoop.yarn.server.nodemanager.executor.ContainerSignalContext;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

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

@@ -19,7 +19,6 @@
 package org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher;
 
 import org.apache.hadoop.yarn.event.AbstractEvent;
-import org.apache.hadoop.yarn.event.Event;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container;
 
 public class ContainersLauncherEvent

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

@@ -25,7 +25,6 @@ import org.apache.hadoop.yarn.api.records.LocalResource;
 import org.apache.hadoop.yarn.api.records.LocalResourceType;
 import org.apache.hadoop.yarn.api.records.LocalResourceVisibility;
 import org.apache.hadoop.yarn.api.records.URL;
-import org.apache.hadoop.yarn.util.ConverterUtils;
 
 public class LocalResourceRequest
     extends LocalResource implements Comparable<LocalResourceRequest> {

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

@@ -21,7 +21,6 @@ import org.apache.hadoop.yarn.api.records.LocalResourceVisibility;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.LocalizedResource;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.LocalizerContext;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService;
-import org.apache.hadoop.yarn.util.ConverterUtils;
 
 /**
  * Event indicating that the {@link ResourceLocalizationService}

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

@@ -44,7 +44,6 @@ import org.apache.hadoop.yarn.server.api.protocolrecords.SCMUploaderNotifyReques
 import org.apache.hadoop.yarn.server.sharedcache.SharedCacheUtil;
 import org.apache.hadoop.yarn.sharedcache.SharedCacheChecksum;
 import org.apache.hadoop.yarn.sharedcache.SharedCacheChecksumFactory;
-import org.apache.hadoop.yarn.util.ConverterUtils;
 import org.apache.hadoop.yarn.util.FSDownload;
 
 import org.apache.hadoop.classification.VisibleForTesting;

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

@@ -20,8 +20,6 @@ package org.apache.hadoop.yarn.server.nodemanager.containermanager.loghandler;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collections;
-import java.util.HashMap;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/logaggregation/tracker/NMLogAggregationStatusTracker.java

@@ -34,7 +34,6 @@ import org.apache.hadoop.service.CompositeService;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.LogAggregationStatus;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
-import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.server.api.protocolrecords.LogAggregationReport;
 import org.apache.hadoop.yarn.server.nodemanager.Context;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.application.Application;

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

@@ -19,7 +19,6 @@
 package org.apache.hadoop.yarn.server.nodemanager.webapp;
 
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.webapp.WebPageUtils;
 import org.apache.hadoop.yarn.util.Log4jWarningErrorMetricsAppender;
 import org.apache.hadoop.yarn.webapp.YarnWebParams;

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

@@ -27,7 +27,6 @@ import javax.xml.bind.annotation.XmlRootElement;
 import org.apache.hadoop.yarn.api.records.ContainerId;
 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.util.ConverterUtils;
 
 @XmlRootElement(name = "app")
 @XmlAccessorType(XmlAccessType.FIELD)

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

@@ -27,7 +27,6 @@ import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.fs.UnsupportedFileSystemException;
 import org.apache.hadoop.fs.permission.FsPermission;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
-import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.TestContainerManager;
 import org.junit.After;
 import org.junit.Assume;

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

@@ -35,8 +35,6 @@ import org.apache.hadoop.yarn.server.nodemanager.DirectoryCollection.DirsChangeL
 import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Before;
 import org.junit.Test;
 
 public class TestDirectoryCollection {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/api/protocolrecords/impl/pb/TestPBRecordImpl.java

@@ -48,7 +48,7 @@ import org.apache.hadoop.yarn.server.nodemanager.api.protocolrecords.LocalizerAc
 import org.apache.hadoop.yarn.server.nodemanager.api.protocolrecords.LocalizerHeartbeatResponse;
 import org.apache.hadoop.yarn.server.nodemanager.api.protocolrecords.LocalizerStatus;
 import org.apache.hadoop.yarn.server.nodemanager.api.protocolrecords.ResourceStatusType;
-import org.apache.hadoop.yarn.util.ConverterUtils;
+
 import org.junit.Test;
 
 public class TestPBRecordImpl {

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

@@ -27,7 +27,6 @@ import org.apache.hadoop.yarn.api.records.LocalResourceVisibility;
 import org.apache.hadoop.yarn.api.records.URL;
 import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
 import org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.LocalResourceRequest;
-import org.apache.hadoop.yarn.util.ConverterUtils;
 
 import static org.apache.hadoop.yarn.api.records.LocalResourceType.*;
 import static org.apache.hadoop.yarn.api.records.LocalResourceVisibility.*;

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

@@ -40,7 +40,6 @@ import org.apache.hadoop.yarn.server.nodemanager.recovery.NMStateStoreService.Re
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
-import org.mockito.InjectMocks;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 

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

@@ -27,7 +27,6 @@ import com.google.inject.Injector;
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.io.StringWriter;
-import java.net.HttpURLConnection;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;

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

@@ -39,10 +39,8 @@ import org.apache.hadoop.metrics2.lib.MutableGaugeLong;
 import org.apache.hadoop.metrics2.lib.MutableRate;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.classification.VisibleForTesting;
-import org.apache.hadoop.yarn.api.records.ResourceInformation;
 import org.apache.hadoop.yarn.metrics.CustomResourceMetricValue;
 import org.apache.hadoop.yarn.metrics.CustomResourceMetrics;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetricsForCustomResources;
 import org.apache.hadoop.yarn.util.resource.ResourceUtils;
 
 @InterfaceAudience.Private

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

@@ -55,8 +55,6 @@ import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.InvalidContainerReleaseException;
 import org.apache.hadoop.yarn.exceptions.InvalidResourceBlacklistRequestException;
 import org.apache.hadoop.yarn.exceptions.InvalidResourceRequestException;
-import org.apache.hadoop.yarn.exceptions.InvalidResourceRequestException
-        .InvalidResourceType;
 import org.apache.hadoop.yarn.exceptions.SchedulerInvalidResoureRequestException;
 import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.factories.RecordFactory;

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

@@ -36,7 +36,6 @@ import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryStore;
 import org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryWriter;
-import org.apache.hadoop.yarn.server.applicationhistoryservice.FileSystemApplicationHistoryStore;
 import org.apache.hadoop.yarn.server.applicationhistoryservice.NullApplicationHistoryStore;
 import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ApplicationAttemptFinishData;
 import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ApplicationAttemptStartData;

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

@@ -61,7 +61,6 @@ import org.apache.hadoop.yarn.server.api.protocolrecords.NodeToAttributes;
 import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.NodeAttributesUpdateSchedulerEvent;
 
-import org.apache.hadoop.thirdparty.com.google.common.base.Strings;
 
 /**
  * Manager holding the attributes to Labels.

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

@@ -32,7 +32,6 @@ import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.api.records.ResourceOption;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
-import org.apache.hadoop.yarn.util.ConverterUtils;
 import org.apache.hadoop.yarn.util.resource.Resources;
 
 public class DynamicResourceConfiguration extends Configuration {

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

@@ -31,7 +31,6 @@ import org.apache.hadoop.yarn.api.records.ExecutionType;
 import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.Priority;
 import org.apache.hadoop.yarn.api.records.Resource;
-import org.apache.hadoop.yarn.api.records.ResourceRequest;
 import org.apache.hadoop.yarn.api.records.SchedulingRequest;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.ContainerRequest;

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

@@ -18,7 +18,6 @@
 
 package org.apache.hadoop.yarn.server.resourcemanager.rmnode;
 
-import java.util.List;
 import java.util.Map;
 
 import org.apache.hadoop.yarn.api.records.Container;

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

@@ -22,7 +22,6 @@ import static org.apache.hadoop.metrics2.lib.Interns.info;
 
 import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 
@@ -49,7 +48,6 @@ import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.metrics.CustomResourceMetricValue;
 import org.apache.hadoop.yarn.server.resourcemanager.nodelabels.RMNodeLabelsManager;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppState;
-import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppAttemptsInfo;
 import org.apache.hadoop.yarn.util.resource.ResourceUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/activities/ActivitiesManager.java

@@ -50,10 +50,7 @@ import java.util.concurrent.ConcurrentLinkedDeque;
 import java.util.concurrent.ConcurrentLinkedQueue;
 import java.util.concurrent.ConcurrentMap;
 import java.util.concurrent.atomic.AtomicInteger;
-import java.util.List;
-import java.util.Set;
 import java.util.*;
-import java.util.ArrayList;
 import java.util.stream.Collectors;
 
 /**

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/QueueManagementDynamicEditPolicy.java

@@ -37,7 +37,6 @@ import org.apache.hadoop.yarn.util.Clock;
 import org.apache.hadoop.yarn.util.SystemClock;
 import org.apache.hadoop.yarn.util.resource.ResourceCalculator;
 
-import java.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashSet;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/allocator/ContainerAllocation.java

@@ -18,12 +18,9 @@
 
 package org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.allocator;
 
-import org.apache.hadoop.yarn.api.records.Container;
-import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.NodeType;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerNode;
 import org.apache.hadoop.yarn.util.resource.Resources;
 
 import java.util.List;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/preemption/PreemptableQueue.java

@@ -23,7 +23,6 @@ import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer;
 import org.apache.hadoop.yarn.util.resource.Resources;
 
-import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.concurrent.ConcurrentSkipListMap;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fifo/FifoAppAttempt.java

@@ -23,7 +23,6 @@ import org.slf4j.LoggerFactory;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.api.records.Container;
 import org.apache.hadoop.yarn.api.records.ContainerId;
-import org.apache.hadoop.yarn.api.records.ResourceRequest;
 import org.apache.hadoop.yarn.server.resourcemanager.RMAuditLogger;
 import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
 import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer;
@@ -40,8 +39,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaS
 
 import org.apache.hadoop.yarn.server.scheduler.SchedulerRequestKey;
 
-import java.util.List;
-
 public class FifoAppAttempt extends FiCaSchedulerApp {
   private static final Logger LOG =
       LoggerFactory.getLogger(FifoAppAttempt.class);

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

@@ -21,7 +21,6 @@ package org.apache.hadoop.yarn.server.resourcemanager.webapp;
 import com.google.inject.Inject;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.yarn.api.records.YarnApplicationState;
-import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.webapp.WebPageUtils;
 import org.apache.hadoop.yarn.util.Log4jWarningErrorMetricsAppender;
 import org.apache.hadoop.yarn.webapp.hamlet2.Hamlet;

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

@@ -47,7 +47,6 @@ import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
 import org.apache.hadoop.yarn.server.webproxy.ProxyUriUtils;
 import org.apache.hadoop.yarn.util.Apps;
-import org.apache.hadoop.yarn.util.ConverterUtils;
 import org.apache.hadoop.yarn.webapp.YarnWebParams;
 import org.apache.hadoop.yarn.webapp.util.WebAppUtils;
 import org.slf4j.Logger;

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

@@ -25,7 +25,6 @@ import org.apache.hadoop.ha.HAServiceProtocol;
 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.server.resourcemanager.recovery.RMStateStore;
 import org.apache.hadoop.yarn.util.YarnVersionInfo;
 
 @XmlRootElement

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

@@ -22,7 +22,6 @@ import javax.xml.bind.annotation.XmlAccessorType;
 import javax.xml.bind.annotation.XmlRootElement;
 import javax.xml.bind.annotation.XmlTransient;
 
-import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
 import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetrics;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;

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

@@ -39,7 +39,6 @@ import java.security.PrivilegedExceptionAction;
 import org.apache.hadoop.thirdparty.protobuf.InvalidProtocolBufferException;
 import org.apache.hadoop.io.DataOutputBuffer;
 import org.apache.hadoop.net.NetUtils;
-import org.apache.hadoop.security.token.delegation.TestDelegationToken;
 import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.RMDelegationTokenIdentifierData;
 import org.junit.AfterClass;
 import org.junit.Assert;

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

@@ -84,7 +84,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.security.AMRMTokenSecretMan
 import org.apache.hadoop.yarn.server.resourcemanager.security.ClientToAMTokenSecretManagerInRM;
 import org.apache.hadoop.yarn.server.security.MasterKeyData;
 import org.apache.hadoop.yarn.server.webproxy.ProxyCA;
-import org.apache.hadoop.yarn.util.ConverterUtils;
 import org.apache.hadoop.yarn.util.resource.DefaultResourceCalculator;
 import org.apache.hadoop.yarn.util.resource.ResourceCalculator;
 import org.junit.Assert;

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

@@ -49,7 +49,7 @@ import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.Applicatio
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppState;
 import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
-import org.apache.hadoop.yarn.util.ConverterUtils;
+
 import org.junit.Assert;
 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/reservation/TestCapacityOverTimePolicy.java

@@ -22,7 +22,7 @@ import java.util.Arrays;
 import java.util.Collection;
 
 import net.jcip.annotations.NotThreadSafe;
-import org.apache.hadoop.yarn.server.resourcemanager.reservation.exceptions.ContractValidationException;
+
 import org.apache.hadoop.yarn.server.resourcemanager.reservation.exceptions.PlanningException;
 import org.apache.hadoop.yarn.server.resourcemanager.reservation.exceptions.PlanningQuotaException;
 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/rmapp/attempt/TestAMLivelinessMonitor.java

@@ -25,7 +25,7 @@ import org.apache.hadoop.yarn.event.Dispatcher;
 import org.apache.hadoop.yarn.server.resourcemanager.MockRM;
 import org.apache.hadoop.yarn.server.resourcemanager.recovery.MemoryRMStateStore;
 import org.apache.hadoop.yarn.util.ControlledClock;
-import org.apache.hadoop.yarn.util.SystemClock;
+
 import org.junit.Assert;
 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/scheduler/capacity/CapacitySchedulerPreemptionTestBase.java

@@ -18,11 +18,9 @@
 
 package org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity;
 
-import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.service.Service;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
-import org.apache.hadoop.yarn.server.resourcemanager.Application;
 import org.apache.hadoop.yarn.server.resourcemanager.MockRM;
 import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
 import org.apache.hadoop.yarn.server.resourcemanager.monitor.SchedulingEditPolicy;
@@ -32,7 +30,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.nodelabels.NullRMNodeLabels
 import org.apache.hadoop.yarn.server.resourcemanager.nodelabels.RMNodeLabelsManager;
 import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNode;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerApp;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerNode;
 import org.apache.hadoop.yarn.util.Clock;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestNodeLabelContainerAllocation.java

@@ -25,7 +25,6 @@ import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashSet;
 import java.util.List;
-import java.util.Map;
 import java.util.Set;
 
 import org.apache.hadoop.conf.Configuration;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestQueueCapacities.java

@@ -24,7 +24,6 @@ import java.util.Collection;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.apache.hadoop.yarn.api.records.Resource;
 import org.junit.Assert;
 import org.junit.Test;
 import org.junit.runner.RunWith;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/policy/TestPriorityUtilizationQueueOrderingPolicy.java

@@ -19,7 +19,7 @@
 package org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.policy;
 
 import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableSet;
-import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableTable;
+
 import org.apache.hadoop.yarn.api.records.Priority;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueResourceQuotas;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CSQueue;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFSAppStarvation.java

@@ -38,7 +38,6 @@ import org.junit.Before;
 import org.junit.Test;
 
 import java.io.File;
-import java.io.IOException;
 
 /**
  * Test class to verify identification of app starvation.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestVisitedResourceRequestTracker.java

@@ -23,7 +23,7 @@ import org.apache.hadoop.yarn.server.resourcemanager.MockNodes;
 import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ClusterNodeTracker;
 import org.apache.hadoop.yarn.util.resource.Resources;
-import org.junit.Assert;
+
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 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/ClientToAMTokenIdentifierForTest.java

@@ -23,10 +23,7 @@ import java.io.DataOutput;
 import java.io.IOException;
 
 import org.apache.commons.io.IOUtils;
-import org.apache.hadoop.classification.InterfaceAudience;
-import org.apache.hadoop.io.Text;
 import org.apache.hadoop.security.UserGroupInformation;
-import org.apache.hadoop.security.token.Token;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.api.records.impl.pb.ApplicationAttemptIdPBImpl;
 import org.apache.hadoop.yarn.security.client.ClientToAMTokenIdentifier;

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

@@ -21,7 +21,6 @@ import java.io.IOException;
 import java.io.PrintWriter;
 import java.util.Map;
 
-import org.apache.hadoop.yarn.api.records.NodeState;
 import org.apache.hadoop.yarn.api.records.ResourceInformation;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.resourcemanager.RMContext;

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

@@ -44,7 +44,7 @@ import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
 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.resourcemanager.webapp.dao.ApplicationSubmissionContextInfo;
-import org.apache.hadoop.yarn.util.ConverterUtils;
+
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
 import org.junit.Test;

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

@@ -24,7 +24,6 @@ import static org.junit.Assert.assertTrue;
 import java.io.IOException;
 
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.ha.HAServiceProtocol;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.junit.Before;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timeline-pluginstorage/src/test/java/org/apache/hadoop/yarn/server/timeline/EntityGroupPlugInForTest.java

@@ -20,7 +20,6 @@ package org.apache.hadoop.yarn.server.timeline;
 import org.apache.hadoop.util.Sets;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.timeline.TimelineEntityGroupId;
-import org.apache.hadoop.yarn.util.ConverterUtils;
 
 import java.util.Collection;
 import java.util.Set;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timeline-pluginstorage/src/test/java/org/apache/hadoop/yarn/server/timeline/TestLogInfo.java

@@ -41,7 +41,6 @@ import org.junit.Test;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.nio.charset.Charset;
-import java.util.EnumSet;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-client/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/apptoflow/AppToFlowTableRW.java

@@ -26,7 +26,7 @@ import org.apache.hadoop.hbase.client.Admin;
 import org.apache.hadoop.hbase.regionserver.BloomType;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.server.timelineservice.storage.common.BaseTableRW;
-import org.apache.hadoop.yarn.server.timelineservice.storage.common.TimelineHBaseSchemaConstants;
+
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

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

@@ -26,7 +26,6 @@ import org.apache.hadoop.yarn.api.ApplicationHistoryProtocol;
 import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportRequest;
 import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportResponse;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
-import org.apache.hadoop.yarn.api.records.ApplicationReport;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.ApplicationNotFoundException;
 import org.apache.hadoop.yarn.exceptions.YarnException;

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

@@ -25,12 +25,9 @@ import java.net.HttpURLConnection;
 import java.util.Set;
 import java.util.HashSet;
 import java.util.Enumeration;
-import java.util.Collection;
 import java.util.Collections;
 import java.util.Map;
 import java.util.HashMap;
-import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.concurrent.atomic.AtomicBoolean;
 
 import javax.servlet.FilterConfig;