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https://issues.apache.org/jira/browse/FLINK-5879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15880093#comment-15880093
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ASF GitHub Bot commented on FLINK-5879:
---------------------------------------

Github user KurtYoung commented on the issue:

    https://github.com/apache/flink/pull/3396
  
    Hi, I think the no args constructor from parent class will be called 
implicitly, does it? 


> ExecutionAttemptID should invoke super() in constructor
> -------------------------------------------------------
>
>                 Key: FLINK-5879
>                 URL: https://issues.apache.org/jira/browse/FLINK-5879
>             Project: Flink
>          Issue Type: Bug
>          Components: Core
>            Reporter: Biao Liu
>            Assignee: Biao Liu
>            Priority: Minor
>
> Currently we forget invoking super() in constructor of ExecutionAttemptID. 
> This may cause NullPointerException.



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