hadoop/hadoop-yarn-project/hadoop-yarn/dev-support/findbugs-exclude.xml

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<FindBugsFilter>
  <!-- Ignore PB Generated Code -->
  <Match>
    <Package name="org.apache.hadoop.yarn.proto" />
  </Match>
  <Match>
    <Package name="org.apache.hadoop.yarn.federation.proto" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.ipc\.RpcProtos.*" />
  </Match>

  <Match>
    <Class name="org.apache.hadoop.yarn.service.AbstractService" />
    <Bug pattern="JLM_JSR166_UTILCONCURRENT_MONITORENTER" />
  </Match>

  <!-- Ignore unchecked Event casts -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.server\.nodemanager\.containermanager\.application\.ApplicationImpl.*" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.server\.nodemanager\.containermanager\.container\.ContainerImpl.*" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.server\.nodemanager\.containermanager\.localizer\.LocalizedResource.*" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.server\.nodemanager\.containermanager\.localizer\.ResourceLocalizationService.*" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor.ContainersMonitorImpl" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.server\.resourcemanager\.rmapp\.RMAppImpl.*" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.server\.resourcemanager\.rmapp\.attempt\.RMAppAttemptImpl.*" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptMetrics" />
    <Method name="incNumAllocatedContainers"/>
    <Bug pattern="VO_VOLATILE_INCREMENT" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl$AppRejectedTransition" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.server\.resourcemanager\.rmcontainer\.RMContainerImpl.*" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.server\.resourcemanager\.rmnode\.RMNodeImpl.*" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.server\.resourcemanager\.RMAppManager.*" />
    <Method name="handle" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.server\.resourcemanager\.scheduler\.capacity\.CapacityScheduler.*" />
    <Method name="handle" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.server\.resourcemanager\.scheduler\.fifo\.FifoScheduler.*" />
    <Method name="handle" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.server\.nodemanager\.containermanager\.logaggregation\.LogAggregationService.*" />
    <Method name="handle" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.server\.nodemanager\.containermanager\.loghandler\.NonAggregatingLogHandler.*" />
    <Method name="handle" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainersLauncher" />
    <Method name="handle" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>

  <!-- Ignore exposed internal representations -->
  <Match>
    <Class name="org.apache.hadoop.yarn.api.records.Resource" />
    <Method name="getResources" />
    <Bug pattern="EI_EXPOSE_REP" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptMetrics" />
    <Method name="getLocalityStatistics" />
    <Bug pattern="EI_EXPOSE_REP" />
  </Match>

  <!-- Object cast is based on the event type -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.timelineservice.NMTimelinePublisher" />
    <Method name="publishApplicationEvent" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>

  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.timelineservice.NMTimelinePublisher" />
    <Method name="publishLocalizationEvent" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>

  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.metrics.TimelineServiceV2Publisher$TimelineV2EventHandler" />
     <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>

  <!-- Ignore intentional switch fallthroughs -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerImpl" />
    <Method name="finished" />
    <Bug pattern="SF_SWITCH_FALLTHROUGH" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer" />
    <Method name="localizeFiles" />
    <Bug pattern="SF_SWITCH_FALLTHROUGH" />
  </Match>

  <!-- Ignore some irrelevant serialization warnings -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceRetentionSet$LRUComparator" />
    <Bug pattern="SE_COMPARATOR_SHOULD_BE_SERIALIZABLE" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.client.api.impl.AMRMClientImpl$ProfileCapabilityComparator" />
    <Bug pattern="SE_COMPARATOR_SHOULD_BE_SERIALIZABLE" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.exceptions.impl.pb.YarnRemoteExceptionPBImpl" />
    <Field name="builder" />
    <Bug pattern="SE_BAD_FIELD" />
  </Match>
  <Match>
    <Class name="~org\.apache\.hadoop\.yarn\.util\.BuilderUtils.*" />
    <Bug pattern="SE_COMPARATOR_SHOULD_BE_SERIALIZABLE" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.resource.Priority$Comparator" />
    <Bug pattern="SE_COMPARATOR_SHOULD_BE_SERIALIZABLE" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.FifoComparator" />
    <Bug pattern="SE_COMPARATOR_SHOULD_BE_SERIALIZABLE" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.FairOrderingPolicy$FairComparator" />
    <Bug pattern="SE_COMPARATOR_SHOULD_BE_SERIALIZABLE" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies.DominantResourceFairnessPolicy$DominantResourceFairnessComparator" />
    <Bug pattern="SE_COMPARATOR_SHOULD_BE_SERIALIZABLE" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies.DominantResourceFairnessPolicy$DominantResourceFairnessComparator2" />
    <Bug pattern="SE_COMPARATOR_SHOULD_BE_SERIALIZABLE" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.policies.DominantResourceFairnessPolicy$DominantResourceFairnessComparatorN" />
    <Bug pattern="SE_COMPARATOR_SHOULD_BE_SERIALIZABLE" />
  </Match>
    <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.CompoundComparator" />
    <Bug pattern="SE_COMPARATOR_SHOULD_BE_SERIALIZABLE" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.PriorityComparator" />
    <Bug pattern="SE_COMPARATOR_SHOULD_BE_SERIALIZABLE" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.RecoveryComparator" />
    <Bug pattern="SE_COMPARATOR_SHOULD_BE_SERIALIZABLE" />
  </Match>
  <!-- Ignore some irrelevant class name warning -->
  <Match>
    <Class name="org.apache.hadoop.yarn.api.records.SerializedException" />
    <Bug pattern="NM_CLASS_NOT_EXCEPTION" />
  </Match>

  <!-- Inconsistent sync warning - only start() is synchronized-->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.LogAggregationService" />
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AllocationFileLoaderService" />
    <Field name="allocFile" />
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>
  <!-- Inconsistent sync warning - minimumAllocation is only initialized once and never changed -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler" />
    <Field name="minimumAllocation" />
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSSchedulerNode" />
    <Method name="reserveResource" />
    <Bug pattern="BC_UNCONFIRMED_CAST" /> 
  </Match>
  <!-- Inconsistent sync warning - reinitialize read from other queue does not need sync-->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue" />
    <Or>
      <Field name="absoluteCapacity" />
      <Field name="absoluteMaxCapacity" />
      <Field name="acls" />
      <Field name="capacity" />
      <Field name="maxApplications" />
      <Field name="maxApplicationsPerUser" />
      <Field name="maximumCapacity" />
      <Field name="state" />
      <Field name="userLimit" />
      <Field name="userLimitFactor" />
      <Field name="maxAMResourcePerQueuePercent" />
      <Field name="lastClusterResource" />
      <Field name="pendingOrderingPolicy" />
      <Field name="pendingOPForRecoveredApps" />
    </Or>
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue" />
    <Or>
      <Field name="absoluteCapacity" />
      <Field name="absoluteMaxCapacity" />
      <Field name="acls" />
      <Field name="capacity" />
      <Field name="maximumCapacity" />
      <Field name="state" />
    </Or>
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.AbstractCSQueue" />
    <Or>
      <Field name="absoluteCapacity" />
      <Field name="absoluteMaxCapacity" />
      <Field name="acls" />
      <Field name="capacity" />
      <Field name="maximumCapacity" />
      <Field name="state" />
      <Field name="labelManager" />
      <Field name="defaultLabelExpression" />
      <Field name="accessibleLabels" />
      <Field name="absoluteNodeLabelCapacities" />
      <Field name="reservationsContinueLooking" />
      <Field name="absoluteCapacityByNodeLabels" />
      <Field name="authorizer" />
      <Field name="parent" />
    </Or>
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>
  <!-- Inconsistent sync warning - scheduleAsynchronously is only initialized once and never changed -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler" />
    <Field name="scheduleAsynchronously" />
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>
  <!-- Inconsistent sync warning - updateInterval is only initialized once and never changed -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler" />
    <Field name="updateInterval" />
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>
  <!-- Inconsistent sync warning - callDurationMetrics is only initialized once and never changed -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler" />
    <Field name="fsOpDurations" />
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>

  <!-- Inconsistent sync warning - numRetries is only initialized once and never changed -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore" />
    <Field name="numRetries" />
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore" />
    <Or>
      <Field name="resourceManager"/>
      <Field name="baseEpoch"/>
    </Or>
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer"/>
    <Field name="renewalTimer" />
    <Bug code="IS"/>
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.client.NMClientImpl$NMCommunicator"/>
    <Field name="containerManager" />
    <Bug pattern="IS2_INCONSISTENT_SYNC"/>
  </Match>

  <Match>
    <Class name="org.apache.hadoop.yarn.server.federation.policies.RouterPolicyFacade"/>
    <Or>
      <Field name="globalConfMap"/>
      <Field name="globalPolicyMap"/>
    </Or>
    <Bug pattern="IS2_INCONSISTENT_SYNC"/>
  </Match>

  <!-- Don't care if putIfAbsent value is ignored -->
  <Match>
    <Package name="org.apache.hadoop.yarn.factories.impl.pb" />
    <Bug pattern="RV_RETURN_VALUE_OF_PUTIFABSENT_IGNORED" />
  </Match>

  <!-- Intended System.exit calls -->
  <Match>
    <Class name="org.apache.hadoop.yarn.webapp.Dispatcher$1" />
    <Bug pattern="DM_EXIT" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.webapp.WebApps$Builder" />
    <Bug pattern="DM_EXIT" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.security.DelegationTokenRenewer$DelegationTokenCancelThread" />
    <Bug pattern="DM_EXIT" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.YarnUncaughtExceptionHandler"/>
    <Bug pattern="DM_EXIT"/>
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.event.AsyncDispatcher$2"/>
    <Method name="run" />
    <Bug pattern="DM_EXIT"/>
  </Match>

  <!-- AsyncDispatcher will kill the process if there is an error dispatching -->
  <Match>
    <Class name="org.apache.hadoop.yarn.event.AsyncDispatcher" />
    <Method name="dispatch" />
    <Bug pattern="DM_EXIT" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.event.EventDispatcher$EventProcessor" />
    <Method name="run" />
    <Bug pattern="DM_EXIT" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.NodeManager" />
    <Method name="initAndStartNodeManager" />
    <Bug pattern="DM_EXIT" />
  </Match>
 
  <!-- Ignore heartbeat exception when killing localizer -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ContainerLocalizer" />
    <Method name="localizeFiles" />
    <Bug pattern="DE_MIGHT_IGNORE" />
  </Match>

  <!-- Ignore EI_EXPOSE_REP in PolicyProviders -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.security.authorize.RMPolicyProvider" />
    <Bug pattern="EI_EXPOSE_REP" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.security.authorize.NMPolicyProvider" />
    <Bug pattern="EI_EXPOSE_REP" />
  </Match>


  <!-- Ignore EI_EXPOSE_REP2 in Log services -->
  <Match>
    <Class name="org.apache.hadoop.yarn.logaggregation.AggregatedLogFormat$LogValue" />
    <Bug pattern="EI_EXPOSE_REP2" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.AppLogAggregatorImpl" />
    <Bug pattern="EI_EXPOSE_REP2" />
  </Match>
  
   <!-- /proc/mounts is always in the same place -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.util.CgroupsLCEResourcesHandler" />
    <Method name="parseMtab" />
    <Bug pattern="DMI_HARDCODED_ABSOLUTE_FILENAME" />
  </Match>

  <!-- rmClient can be ignored as only code blocks outside of rpc calls need to be synchronized -->
  <Match>
    <Class name="org.apache.hadoop.yarn.client.AMRMClientImpl" />
    <Field name="rmClient" />
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>

  <!-- Null pointer exception needs to be ignored here as this is never going to occur. -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.LocalResourcesTrackerImpl" />
    <Method name="decrementFileCountForLocalCacheDirectory" />
    <Bug pattern="NP_NULL_ON_SOME_PATH_FROM_RETURN_VALUE" />
  </Match>

  <!-- Null pointer exception needs to be ignored here as this is never going to occur. -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.LocalResourcesTrackerImpl" />
    <Method name="getPathForLocalization" />
    <Bug pattern="NP_NULL_ON_SOME_PATH_FROM_RETURN_VALUE" />
  </Match>

  <!-- This type cast problem will never occur. -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.LocalResourcesTrackerImpl" />
    <Method name="handle" />
    <Bug pattern="BC_UNCONFIRMED_CAST" />
  </Match>

  <!-- Ignore SerializedException does not extend Exception -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.api.records.SerializedException" />
    <Bug pattern="NM_CLASS_NOT_EXCEPTION" />
  </Match>

  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore" />
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>

  <!-- Multithreaded correctness warnings need to be ignored here as this is for creating the singleton.-->
  <Match>
      <Class name="org.apache.hadoop.yarn.server.resourcemanager.security.authorize.RMPolicyProvider"/>
      <Bug pattern="DC_DOUBLECHECK" />
  </Match>

  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.security.authorize.NMPolicyProvider"/>
    <Bug pattern="DC_DOUBLECHECK" />
  </Match>
  <!-- ApplicationClassLoader is deprecated and moved to hadoop-common; ignore
       warning on the identical name as it should be removed later -->
  <Match>
    <Class name="org.apache.hadoop.yarn.util.ApplicationClassLoader"/>
    <Bug pattern="NM_SAME_SIMPLE_NAME_AS_SUPERCLASS"/>
  </Match>

   <!-- It is only changed on re-initialization the warnings are for access from a test function. -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue" />
    <Field name="reservationsContinueLooking" />
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue" />
    <Field name="reservationsContinueLooking" />
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>

  <!--
  This code is meant to deserialize this way...subclasses of will need to
  instantiate their own JsonSerDeser instances if they want to deserialize.
  -->
  <Match>
    <Class name="org.apache.hadoop.registry.client.binding.JsonSerDeser"/>
    <Bug pattern="UI_INHERITANCE_UNSAFE_GETRESOURCE"/>
  </Match>

  <!-- Ignore the false alarms on DM_DEFAULT_ENCODING (encoding already set) -->
  <Match>
    <Class name="org.apache.hadoop.yarn.logaggregation.AggregatedLogFormat$LogReader" />
    <Bug pattern="DM_DEFAULT_ENCODING" />
  </Match>

  <!-- Ignore EI_EXPOSE_REP2 in timeline service -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.timeline.util.LeveldbUtils$KeyParser" />
    <Bug pattern="EI_EXPOSE_REP2" />
  </Match>

  <!-- Ignore unrelated RV_RETURN_VALUE_IGNORED_BAD_PRACTICE warnings. No need to wait for result from executor service -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainersLauncher" />
    <Bug pattern="RV_RETURN_VALUE_IGNORED_BAD_PRACTICE" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.sharedcache.SharedCacheUploadService" />
    <Bug pattern="RV_RETURN_VALUE_IGNORED_BAD_PRACTICE" />
  </Match>

  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicationAttempt" />
    <Field name="queue" />
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler" />
    <Field name="allocConf" />
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNode" />
    <Field name="numContainers" />
    <Bug pattern="VO_VOLATILE_INCREMENT" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.AbstractCSQueue" />
    <Field name="numContainers" />
    <Bug pattern="VO_VOLATILE_INCREMENT" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue" />
    <Field name="numApplications" />
    <Bug pattern="VO_VOLATILE_INCREMENT" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler" />
    <Method name="recoverContainersOnNode" />
    <Bug pattern="RCN_REDUNDANT_NULLCHECK_OF_NONNULL_VALUE" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler" />
    <Or>
      <Field name="rmContext" />
      <Field name="applications" />
      <Field name="activitiesManager" />
    </Or>
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>
  <!-- Ignore SQL_PREPARED_STATEMENT_GENERATED_FROM_NONCONSTANT_STRING warnings for Timeline Phoenix storage. -->
  <!-- Since we're using dynamic columns, we have to generate SQL statements dynamically -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.timelineservice.storage.PhoenixOfflineAggregationWriterImpl" />
    <Or>
      <Method name="storeEntityVariableLengthFields" />
      <Method name="writeAggregatedEntity" />
    </Or>
    <Bug pattern="SQL_PREPARED_STATEMENT_GENERATED_FROM_NONCONSTANT_STRING" />
  </Match>
  
  <!-- Following fields are used in ErrorsAndWarningsBlock, which is not a part of analysis of findbugs -->
  <Match>
    <Class name="org.apache.hadoop.yarn.util.Log4jWarningErrorMetricsAppender$Element" />
    <Or>
      <Field name="count" />
      <Field name="timestampSeconds" />
    </Or>
    <Bug pattern="URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD" />
  </Match>

  <Match>
    <Class name="org.apache.hadoop.yarn.api.records.ResourceRequest" />
    <Method name="equals" />
    <Bug pattern="RCN_REDUNDANT_NULLCHECK_OF_NONNULL_VALUE" />
  </Match>
  <Match>
    <Package name="org.apache.hadoop.yarn.api.records.impl.pb" />
    <Bug pattern="NP_BOOLEAN_RETURN_NULL" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ActivityNodeInfo"/>
    <Or>
      <Field name="allocationState" />
      <Field name="diagnostic" />
      <Field name="name" />
      <Field name="requestPriority" />
      <Field name="appPriority" />
    </Or>
    <Bug pattern="URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD" />
  </Match>

  <!-- Ignore VO_VOLATILE_INCREMENT, they will be protected by writeLock -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue$User" />
    <Or>
      <Field name="pendingApplications" />
      <Field name="activeApplications" />
    </Or>
    <Bug pattern="VO_VOLATILE_INCREMENT" />
  </Match>


  <!-- Ignore false alert for UL_UNRELEASED_LOCK_EXCEPTION_PATH -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler$ResourceCommitterService"/>
    <Method name="run" />
    <Bug pattern="UL_UNRELEASED_LOCK_EXCEPTION_PATH" />
  </Match>

  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.amrmproxy.FederationInterceptor" />
    <Bug pattern="IS2_INCONSISTENT_SYNC" />
  </Match>

  <!-- Ignore MS_EXPOSE_REP -->
    <Match>
    <Class name="org.apache.hadoop.yarn.util.resource.ResourceUtils" />
    <Method name="getResourceTypesArray" />
    <Bug pattern="MS_EXPOSE_REP" />
  </Match>

  <Match>
    <Class name="org.apache.hadoop.yarn.util.resource.ResourceUtils" />
    <Method name="getResourceNamesArray" />
    <Bug pattern="MS_EXPOSE_REP" />
  </Match>

  <Match>
    <Class name="org.apache.hadoop.registry.server.dns.RegistryDNS" />
    <Method name="addNIOTCP" />
    <Bug pattern="RV_RETURN_VALUE_IGNORED_BAD_PRACTICE" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.registry.server.dns.RegistryDNS" />
    <Method name="addNIOUDP" />
    <Bug pattern="RV_RETURN_VALUE_IGNORED_BAD_PRACTICE" />
  </Match>
  <Match>
    <Class name="org.apache.hadoop.registry.server.dns.RegistryDNS" />
    <Method name="serveNIOTCP" />
    <Bug pattern="RV_RETURN_VALUE_IGNORED_BAD_PRACTICE" />
  </Match>

  <!-- EQ_OVERRIDING_EQUALS_NOT_SYMMETRIC -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.containermanager.resourceplugin.gpu.AssignedGpuDevice" />
    <Method name="equals" />
    <Bug pattern="EQ_OVERRIDING_EQUALS_NOT_SYMMETRIC" />
  </Match>

  <!-- Null pointer exception needs to be ignored here as Findbugs doesn't properly detect code logic -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.placement.SingleConstraintAppPlacementAllocator" />
    <Method name="validateAndSetSchedulingRequest" />
    <Bug pattern="NP_NULL_ON_SOME_PATH" />
  </Match>

  <!-- Expose the reference to avoid performance overhead -->
  <Match>
    <Class name="org.apache.hadoop.yarn.api.records.Resource" />
    <Method name="getResources" />
    <Bug pattern="EI_EXPOSE_REP" />
  </Match>

  <!-- The called method signature is String emptyToNull(@Nullable String string) in guava 27, so this should be ignored -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.nodemanager.NodeHealthCheckerService"/>
    <Method name="getHealthReport" />
    <Bug pattern="NP_NULL_PARAM_DEREF"/>
  </Match>

  <!-- The variable is not used, but it's defined for the document model. -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.timelineservice.documentstore.collection.document.entity.TimelineEventSubDoc"/>
    <Method name="setValid" />
    <Bug pattern="URF_UNREAD_FIELD"/>
  </Match>

  <!-- The variable is not used, but it's defined for the document model. -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.timelineservice.documentstore.collection.document.entity.TimelineMetricSubDoc"/>
    <Method name="setValid" />
    <Bug pattern="URF_UNREAD_FIELD"/>
  </Match>

  <!-- The called method signature is public boolean set(@Nullable V value) in guava 27, so this should be ignored -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$UpdateAppTransition"/>
    <Method name="transition" />
    <Bug pattern="NP_NONNULL_PARAM_VIOLATION"/>
  </Match>

  <!-- The called method signature is public boolean set(@Nullable V value) in guava 27, so this should be ignored -->
  <Match>
    <Class name="org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler"/>
    <Method name="updateApplicationPriority" />
    <Bug pattern="NP_NONNULL_PARAM_VIOLATION"/>
  </Match>

</FindBugsFilter>