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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5700) INode.getPathComponents throws NPE when given a non-absolute path
Date Fri, 29 May 2009 21:48:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5700?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12714618#action_12714618
] 

Tsz Wo (Nicholas), SZE commented on HADOOP-5700:
------------------------------------------------

> No, RuntimeException is an indication of a bug. And replacing one bug by another does
not solve the problem.

As mentioned before, I don't think there is a bug in getPathComponents(..) since the parameter
is supposed to be an absolute path.  Throwing RuntimeException here indicates that the caller
codes have a bug.

> ... I proposed we should also call DFSUtil.isValidName(src) ...

Yes, this is another option of fixing this.

> INode.getPathComponents throws NPE when given a non-absolute path
> -----------------------------------------------------------------
>
>                 Key: HADOOP-5700
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5700
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Minor
>             Fix For: 0.21.0
>
>         Attachments: HADOOP-5700.txt
>
>
> If you pass a path that doesn't start with '/' to INode.getPathComponents, it throws
a NullPointerException. Instead it should throw IllegalArgumentException to make it clear
that absolute paths are required in this code.
> The attached patch fixes this, clarifies, the javadoc, and adds a test case.

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