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https://issues.apache.org/jira/browse/HADOOP-10480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Akira AJISAKA updated HADOOP-10480:
-----------------------------------
Attachment: HADOOP-10480.patch
> Fix new findbugs warnings in hadoop-hdfs
> ----------------------------------------
>
> Key: HADOOP-10480
> URL: https://issues.apache.org/jira/browse/HADOOP-10480
> Project: Hadoop Common
> Issue Type: Sub-task
> Reporter: Haohui Mai
> Assignee: Akira AJISAKA
> Labels: newbie
> Attachments: HADOOP-10480.patch
>
>
> The following findbugs warnings need to be fixed:
> {noformat}
> [INFO] --- findbugs-maven-plugin:2.5.3:check (default-cli) @ hadoop-hdfs ---
> [INFO] BugInstance size is 14
> [INFO] Error size is 0
> [INFO] Total bugs: 14
> [INFO] Redundant nullcheck of curPeer, which is known to be non-null in
> org.apache.hadoop.hdfs.BlockReaderFactory.getRemoteBlockReaderFromTcp()
> ["org.apache.hadoop.hdfs.BlockReaderFactory"] At
> BlockReaderFactory.java:[lines 68-808]
> [INFO] Increment of volatile field
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.restartingNodeIndex in
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.setupPipelineForAppendOrRecovery()
> ["org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer"] At
> DFSOutputStream.java:[lines 308-1492]
> [INFO] Found reliance on default encoding in
> org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(DataOutputStream,
> DataInputStream, DataOutputStream, String, DataTransferThrottler,
> DatanodeInfo[]): new java.io.FileWriter(File)
> ["org.apache.hadoop.hdfs.server.datanode.BlockReceiver"] At
> BlockReceiver.java:[lines 66-905]
> [INFO] b must be nonnull but is marked as nullable
> ["org.apache.hadoop.hdfs.server.datanode.DatanodeJspHelper$2"] At
> DatanodeJspHelper.java:[lines 546-549]
> [INFO] Found reliance on default encoding in
> org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.BlockPoolSlice.addToReplicasMap(ReplicaMap,
> File, boolean): new java.util.Scanner(File)
> ["org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.BlockPoolSlice"] At
> BlockPoolSlice.java:[lines 58-427]
> [INFO] Found reliance on default encoding in
> org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.BlockPoolSlice.loadDfsUsed():
> new java.util.Scanner(File)
> ["org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.BlockPoolSlice"] At
> BlockPoolSlice.java:[lines 58-427]
> [INFO] Found reliance on default encoding in
> org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.BlockPoolSlice.saveDfsUsed():
> new java.io.FileWriter(File)
> ["org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.BlockPoolSlice"] At
> BlockPoolSlice.java:[lines 58-427]
> [INFO] Redundant nullcheck of f, which is known to be non-null in
> org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.invalidate(String,
> Block[])
> ["org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl"] At
> FsDatasetImpl.java:[lines 60-1910]
> [INFO] Found reliance on default encoding in
> org.apache.hadoop.hdfs.server.namenode.FSImageUtil.<static initializer for
> FSImageUtil>(): String.getBytes()
> ["org.apache.hadoop.hdfs.server.namenode.FSImageUtil"] At
> FSImageUtil.java:[lines 34-89]
> [INFO] Found reliance on default encoding in
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getListingInt(String,
> byte[], boolean): new String(byte[])
> ["org.apache.hadoop.hdfs.server.namenode.FSNamesystem"] At
> FSNamesystem.java:[lines 301-7701]
> [INFO] Found reliance on default encoding in
> org.apache.hadoop.hdfs.server.namenode.INode.dumpTreeRecursively(PrintStream):
> new java.io.PrintWriter(OutputStream, boolean)
> ["org.apache.hadoop.hdfs.server.namenode.INode"] At INode.java:[lines 51-744]
> [INFO] Redundant nullcheck of fos, which is known to be non-null in
> org.apache.hadoop.hdfs.server.namenode.NamenodeFsck.copyBlocksToLostFound(String,
> HdfsFileStatus, LocatedBlocks)
> ["org.apache.hadoop.hdfs.server.namenode.NamenodeFsck"] At
> NamenodeFsck.java:[lines 94-710]
> [INFO] Found reliance on default encoding in
> org.apache.hadoop.hdfs.tools.offlineImageViewer.OfflineImageViewerPB.run(String[]):
> new java.io.PrintWriter(File)
> ["org.apache.hadoop.hdfs.tools.offlineImageViewer.OfflineImageViewerPB"] At
> OfflineImageViewerPB.java:[lines 45-181]
> [INFO] Found reliance on default encoding in
> org.apache.hadoop.hdfs.tools.offlineImageViewer.OfflineImageViewerPB.run(String[]):
> new java.io.PrintWriter(OutputStream)
> ["org.apache.hadoop.hdfs.tools.offlineImageViewer.OfflineImageViewerPB"] At
> OfflineImageViewerPB.java:[lines 45-181]
> {noformat}
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