John Doe created MAPREDUCE-7510:
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             Summary: Use before initialization in TaskAttemptListenerImpl
                 Key: MAPREDUCE-7510
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7510
             Project: Hadoop Map/Reduce
          Issue Type: Bug
    Affects Versions: 3.4.1
            Reporter: John Doe


Instance variables in TaskAttemptListenerImpl can be accessed before 
initialization if the initialization function is delayed, and cause null 
pointer exceptions.



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