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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-538) DistributedFileSystem::listStatus incorrectly returns null for empty result sets
Date Sat, 29 Aug 2009 13:53:32 GMT

    [ https://issues.apache.org/jira/browse/HDFS-538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12749138#action_12749138
] 

Hudson commented on HDFS-538:
-----------------------------

Integrated in Hadoop-Hdfs-trunk #65 (See [http://hudson.zones.apache.org/hudson/job/Hadoop-Hdfs-trunk/65/])
    

> DistributedFileSystem::listStatus incorrectly returns null for empty result sets
> --------------------------------------------------------------------------------
>
>                 Key: HDFS-538
>                 URL: https://issues.apache.org/jira/browse/HDFS-538
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Jakob Homan
>            Assignee: Jakob Homan
>             Fix For: 0.21.0
>
>         Attachments: HDFS-538.patch
>
>
> Currently the listStatus method returns null if no files match the request.  This differs
from the Checksum/LocalFileSystem implementation, which returns an empty array, and the nontvery-explict
prescription of the FileSystem interface: "{{@return the statuses of the files/directories
in the given patch}}"  It's better to return an empty collection than have to add extra null
checks.  The method should return an empty array.

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