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Posted to common-issues@hadoop.apache.org by GitBox <gi...@apache.org> on 2020/07/16 11:23:28 UTC
[GitHub] [hadoop] iwasakims commented on pull request #2146: HADOOP-16866. Upgrade spotbugs to 4.0.6.
iwasakims commented on pull request #2146:
URL: https://github.com/apache/hadoop/pull/2146#issuecomment-659347835
It worked on my local while a bit more warnings are generated by spotbugs 4.0.6.
before
```
$ mvn clean install findbugs:findbugs -DskipTests -DskipShade
$ find . -name findbugsXml.xml | xargs -n 1 /opt/spotbugs-4.0.6/bin/convertXmlToText
H C UMAC: Uncallable method org.apache.hadoop.yarn.server.timelineservice.reader.TestTimelineReaderWebServicesHBaseStorage$1.getInstance() defined in anonymous class At TestTimelineReaderWebServicesHBaseStorage.java:[line 87]
M D DLS: Dead store to entities in org.apache.hadoop.yarn.server.timelineservice.storage.TestTimelineReaderHBaseDown.checkQuery(HBaseTimelineReaderImpl) At TestTimelineReaderHBaseDown.java:[line 190]
M V EI: org.apache.hadoop.fs.cosn.CosNInputStream$ReadBuffer.getBuffer() may expose internal representation by returning CosNInputStream$ReadBuffer.buffer At CosNInputStream.java:[line 87]
```
after:
```
$ mvn clean install findbugs:findbugs -DskipTests -DskipShade
$ find . -name findbugsXml.xml | xargs -n 1 /opt/spotbugs-4.0.6/bin/convertXmlToText
M D DLS: Dead store to $L5 in org.apache.hadoop.ipc.Server$ConnectionManager.decrUserConnections(String) At Server.java:[line 3729]
M D DLS: Dead store to $L5 in org.apache.hadoop.ipc.Server$ConnectionManager.incrUserConnections(String) At Server.java:[line 3717]
H D NP: Method org.apache.hadoop.hdfs.server.datanode.checker.DatasetVolumeChecker$ResultHandler.onSuccess(Object) overrides the nullness annotation of parameter $L1 in an incompatible way At DatasetVolumeChecker.java:[line 322]
H D NP: Method org.apache.hadoop.hdfs.server.datanode.checker.DatasetVolumeChecker$ResultHandler.onSuccess(VolumeCheckResult) overrides the nullness annotation of parameter result in an incompatible way At DatasetVolumeChecker.java:[lines 358-376]
M D NP: Method 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 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: result must be non-null but is marked as nullable At LocatedFileStatusFetcher.java:[lines 380-397]
M D NP: result must be non-null but is marked as nullable At LocatedFileStatusFetcher.java:[lines 291-309]
M D DLS: Dead store to $L6 in org.apache.hadoop.yarn.sls.SLSRunner.increaseQueueAppNum(String) At SLSRunner.java:[line 816]
H C UMAC: Uncallable method org.apache.hadoop.yarn.server.timelineservice.reader.TestTimelineReaderWebServicesHBaseStorage$1.getInstance() defined in anonymous class At TestTimelineReaderWebServicesHBaseStorage.java:[line 87]
M D DLS: Dead store to entities in org.apache.hadoop.yarn.server.timelineservice.storage.TestTimelineReaderHBaseDown.checkQuery(HBaseTimelineReaderImpl) At TestTimelineReaderHBaseDown.java:[line 190]
M V EI: org.apache.hadoop.fs.cosn.CosNInputStream$ReadBuffer.getBuffer() may expose internal representation by returning CosNInputStream$ReadBuffer.buffer At CosNInputStream.java:[line 87]
```
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