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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5700) INode.getPathComponents throws NPE when given a non-absolute path
Date Wed, 27 May 2009 23:51:46 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5700?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12713801#action_12713801
] 

Raghu Angadi commented on HADOOP-5700:
--------------------------------------


In your case, if getPathNames() returned 'new String[0];' rather than null, would the it work
fine? (i.e. namenode.getFileInfo() behaves as though a non-existent path was queried).  

But that still leaves the problem with namenode.getFileInfo(null). 


> 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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