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https://issues.apache.org/jira/browse/HADOOP-17138?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Takanobu Asanuma updated HADOOP-17138:
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Fix Version/s: 3.2.3
> Fix spotbugs warnings surfaced after upgrade to 4.0.6
> -----------------------------------------------------
>
> Key: HADOOP-17138
> URL: https://issues.apache.org/jira/browse/HADOOP-17138
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Masatake Iwasaki
> Assignee: Masatake Iwasaki
> Priority: Minor
> Labels: pull-request-available
> Fix For: 3.3.1, 3.4.0, 3.2.3
>
> Time Spent: 2h 10m
> Remaining Estimate: 0h
>
> Spotbugs 4.0.6 generated additional warnings.
> {noformat}
> $ find . -name findbugsXml.xml | xargs -n 1
> /opt/spotbugs-4.0.6/bin/convertXmlToText -longBugCodes
> M D DLS_DEAD_LOCAL_STORE DLS: Dead store to $L5 in
> org.apache.hadoop.ipc.Server$ConnectionManager.decrUserConnections(String)
> At Server.java:[line 3729]
> M D DLS_DEAD_LOCAL_STORE DLS: Dead store to $L5 in
> org.apache.hadoop.ipc.Server$ConnectionManager.incrUserConnections(String)
> At Server.java:[line 3717]
> H D NP_METHOD_PARAMETER_TIGHTENS_ANNOTATION NP: Method
> org.apache.hadoop.hdfs.server.datanode.checker.DatasetVolumeChecker$ResultHandler.onSuccess(Object)
> overrides the nullness annotation of parameter $L1 in an incompatible way
> At DatasetVolumeChecker.java:[line 322]
> H D NP_METHOD_PARAMETER_TIGHTENS_ANNOTATION NP: Method
> org.apache.hadoop.hdfs.server.datanode.checker.DatasetVolumeChecker$ResultHandler.onSuccess(VolumeCheckResult)
> overrides the nullness annotation of parameter result in an incompatible way
> At DatasetVolumeChecker.java:[lines 358-376]
> M D NP_METHOD_PARAMETER_TIGHTENS_ANNOTATION NP: Method
> org.apache.hadoop.hdfs.server.datanode.checker.ThrottledAsyncChecker$2.onSuccess(Object)
> overrides the nullness annotation of parameter result in an incompatible way
> At ThrottledAsyncChecker.java:[lines 170-175]
> M D DLS_DEAD_LOCAL_STORE DLS: Dead store to $L8 in
> org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.incrOpCount(FSEditLogOpCodes,
> EnumMap, Step, StartupProgress$Counter) At FSEditLogLoader.java:[line 1241]
> M D NP_PARAMETER_MUST_BE_NONNULL_BUT_MARKED_AS_NULLABLE NP: result must be
> non-null but is marked as nullable At LocatedFileStatusFetcher.java:[lines
> 380-397]
> M D NP_PARAMETER_MUST_BE_NONNULL_BUT_MARKED_AS_NULLABLE NP: result must be
> non-null but is marked as nullable At LocatedFileStatusFetcher.java:[lines
> 291-309]
> M D DLS_DEAD_LOCAL_STORE DLS: Dead store to $L6 in
> org.apache.hadoop.yarn.sls.SLSRunner.increaseQueueAppNum(String) At
> SLSRunner.java:[line 816]
> H C UMAC_UNCALLABLE_METHOD_OF_ANONYMOUS_CLASS UMAC: Uncallable method
> org.apache.hadoop.yarn.server.timelineservice.reader.TestTimelineReaderWebServicesHBaseStorage$1.getInstance()
> defined in anonymous class At
> TestTimelineReaderWebServicesHBaseStorage.java:[line 87]
> M D DLS_DEAD_LOCAL_STORE DLS: Dead store to entities in
> org.apache.hadoop.yarn.server.timelineservice.storage.TestTimelineReaderHBaseDown.checkQuery(HBaseTimelineReaderImpl)
> At TestTimelineReaderHBaseDown.java:[line 190]
> M V EI_EXPOSE_REP EI:
> org.apache.hadoop.fs.cosn.CosNInputStream$ReadBuffer.getBuffer() may expose
> internal representation by returning CosNInputStream$ReadBuffer.buffer At
> CosNInputStream.java:[line 87]
> {noformat}
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