Weiwei Yang created YARN-6517:
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             Summary: Fix warnings from Spotbugs in hadoop-yarn-common
                 Key: YARN-6517
                 URL: https://issues.apache.org/jira/browse/YARN-6517
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Weiwei Yang
            Assignee: Weiwei Yang


There are 2 findbugs warnings in hadoop-yarn-common project since switched to 
spotbugs,

# Possible null pointer dereference in 
org.apache.hadoop.yarn.logaggregation.AggregatedLogFormat$LogValue.getPendingLogFilesToUpload(File)
 due to return value of called method
# Possible null pointer dereference in 
org.apache.hadoop.yarn.util.ProcfsBasedProcessTree.getProcessList() due to 
return value of called method

see more in 
[https://builds.apache.org/job/PreCommit-HADOOP-Build/12157/artifact/patchprocess/branch-findbugs-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-common-warnings.html]



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