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From "Jakob Homan (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-538) DistributedFileSystem::listStatus incorrectly returns null for empty result sets
Date Tue, 11 Aug 2009 19:36:14 GMT
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


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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