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https://issues.apache.org/jira/browse/HADOOP-8751?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14558770#comment-14558770
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Akira AJISAKA commented on HADOOP-8751:
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+1, committing this.
> NPE in Token.toString() when Token is constructed using null identifier
> -----------------------------------------------------------------------
>
> Key: HADOOP-8751
> URL: https://issues.apache.org/jira/browse/HADOOP-8751
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Reporter: Vlad Rozov
> Assignee: kanaka kumar avvaru
> Priority: Minor
> Labels: BB2015-05-TBR
> Attachments: HADOOP-8751-01.patch, HADOOP-8751-01.patch,
> HADOOP-8751-02.patch, HADOOP-8751-03.patch, HADOOP-8751.patch
>
>
> Token constructor allows null to be passed leading to NPE in
> Token.toString(). Simple fix is to check for null in constructor and use
> empty byte arrays.
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