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  1. Hadoop HDFS
  2. HDFS-7515

Fix new findbugs warnings in hadoop-hdfs

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.7.0
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      The following findbugs warnings need to be fixed:

      [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]
      

        Attachments

        1. HADOOP-10480.003.patch
          62 kB
          Haohui Mai
        2. HADOOP-10480.002.patch
          62 kB
          Haohui Mai
        3. HADOOP-10480.001.patch
          58 kB
          Haohui Mai
        4. HADOOP-10480.000.patch
          58 kB
          Haohui Mai
        5. HADOOP-10480.2.patch
          25 kB
          Akira Ajisaka
        6. HADOOP-10480.patch
          25 kB
          Akira Ajisaka

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              • Assignee:
                wheat9 Haohui Mai
                Reporter:
                wheat9 Haohui Mai
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                Dates

                • Created:
                  Updated:
                  Resolved: