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https://issues.apache.org/jira/browse/HADOOP-12543?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kazuho Fujii updated HADOOP-12543:
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Attachment: HADOOP-12543.001.patch
I think the method should be like the attached patch. I tested it only in a
Linux environment.
> Path#isRoot() returns true if the path is ".".
> ----------------------------------------------
>
> Key: HADOOP-12543
> URL: https://issues.apache.org/jira/browse/HADOOP-12543
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Reporter: Kazuho Fujii
> Attachments: HADOOP-12543.001.patch
>
>
> {{Path#isRoot()}} methods is expected to return true if and only if the path
> represents the root of a file system. But, it returns true in the case where
> the path is ".". This is because {{getParent()}} method returns null when the
> path in URI is empty.
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