Wei-Chiu Chuang created HDFS-14598:
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Summary: Findbugs warning caused by HDFS-12487
Key: HDFS-14598
URL: https://issues.apache.org/jira/browse/HDFS-14598
Project: Hadoop HDFS
Issue Type: Bug
Components: diskbalancer
Reporter: Wei-Chiu Chuang
https://builds.apache.org/job/PreCommit-HDFS-Build/27038/artifact/out/branch-findbugs-hadoop-hdfs-project_hadoop-hdfs-warnings.html
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Redundant nullcheck of block, which is known to be non-null in
org.apache.hadoop.hdfs.server.datanode.DiskBalancer$DiskBalancerMover.getBlockToCopy(FsVolumeSpi$BlockIterator,
DiskBalancerWorkItem)
Bug type RCN_REDUNDANT_NULLCHECK_OF_NONNULL_VALUE (click for details)
In class org.apache.hadoop.hdfs.server.datanode.DiskBalancer$DiskBalancerMover
In method
org.apache.hadoop.hdfs.server.datanode.DiskBalancer$DiskBalancerMover.getBlockToCopy(FsVolumeSpi$BlockIterator,
DiskBalancerWorkItem)
Value loaded from block
Return value of
org.apache.hadoop.hdfs.server.datanode.fsdataset.FsVolumeSpi$BlockIterator.nextBlock()
of type org.apache.hadoop.hdfs.protocol.ExtendedBlock
Redundant null check at DiskBalancer.java:[line 912]
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