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From "Xiao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13461) NPE in KeyProvider.rollNewVersion
Date Tue, 09 Aug 2016 17:17:20 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13461?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15413868#comment-15413868
] 

Xiao Chen commented on HADOOP-13461:
------------------------------------

Thanks [~coheigea], could you fix the checkstyle? Other than that LGTM.

Also, thanks Eddy and Akira for your help!

> NPE in KeyProvider.rollNewVersion
> ---------------------------------
>
>                 Key: HADOOP-13461
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13461
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.7.2, 2.6.4
>            Reporter: Colm O hEigeartaigh
>            Assignee: Colm O hEigeartaigh
>            Priority: Minor
>         Attachments: HADOOP-13461.patch
>
>
> When KeyProvider.rollNewVersion(String name) is called, it first gets the metadata for
the given name. The javadoc states that the getMetadata(String name) method can return null
if the key doesn't exist. However rollNewVersion throws a NPE if the returned metadata is
null.



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