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https://issues.apache.org/jira/browse/HADOOP-6648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Devaraj Das updated HADOOP-6648:
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Attachment: h-6648-trunk.patch
Patch for trunk.
> Credentials should ignore null tokens
> -------------------------------------
>
> Key: HADOOP-6648
> URL: https://issues.apache.org/jira/browse/HADOOP-6648
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Fix For: 0.22.0
>
> Attachments: c-6648-y20.patch, h-6648-trunk.patch
>
>
> When hftp goes to a non-secure cluster, getDelegationToken returns null.
> Credentials.addToken needs to ignore null tokens to avoid a NPE in
> serialization.
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