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https://issues.apache.org/jira/browse/HADOOP-9415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13607888#comment-13607888
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Konstantin Shvachko commented on HADOOP-9415:
---------------------------------------------
Both {{FileContext.getLinkTarget()}} and {{ClientProtocol.getLinkTarget()}}
claim it should throw "IOException - If the given path does not refer to a
symlink". Not returning null as in your patch.
Why don't we start committing obvious bugs rather than merging them into big
jira.
> Fix NullPointerException in getLinkTarget
> -----------------------------------------
>
> Key: HADOOP-9415
> URL: https://issues.apache.org/jira/browse/HADOOP-9415
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs
> Affects Versions: 3.0.0
> Reporter: Andrew Wang
> Assignee: Andrew Wang
> Priority: Minor
> Attachments: hadoop-9415-1.patch
>
>
> {{HdfsFileStatus#getLinkTarget}} can throw a NPE in {{DFSUtil#bytes2String}}
> if {{symlink}} is null. Better to instead return null and propagate this to
> the client.
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