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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6261) NullPointerException if MapOutputBuffer.flush invoked twice
Date Wed, 18 Feb 2015 19:25:12 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14326424#comment-14326424
] 

Jason Lowe commented on MAPREDUCE-6261:
---------------------------------------

+1 lgtm.   Committing this.


> NullPointerException if MapOutputBuffer.flush invoked twice
> -----------------------------------------------------------
>
>                 Key: MAPREDUCE-6261
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6261
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 2.5.0
>            Reporter: Jason Lowe
>            Assignee: Tsuyoshi OZAWA
>         Attachments: MAPREDUCE-6261.1.patch, MAPREDUCE-6261.2.patch
>
>
> MapOutputBuffer.flush will throw an NPE if it is invoked twice, since it blindly assumes
kvbuffer is not null yet sets kvbuffer to null towards the end of the method.



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