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From "Haohui Mai (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-10480) Fix new findbugs warnings in hadoop-hdfs
Date Wed, 09 Apr 2014 00:29:15 GMT
Haohui Mai created HADOOP-10480:
-----------------------------------

             Summary: 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


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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