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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7322) Adding a util method in FileUtil for directory listing
Date Wed, 25 May 2011 07:59:47 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13039009#comment-13039009

Hadoop QA commented on HADOOP-7322:

+1 overall.  Here are the results of testing the latest attachment 
  against trunk revision 1127215.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 6 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit

    +1 core tests.  The patch passed core unit tests.

    +1 system test framework.  The patch passed system test framework compile.

Test results: https://builds.apache.org/hudson/job/PreCommit-HADOOP-Build/523//testReport/
Findbugs warnings: https://builds.apache.org/hudson/job/PreCommit-HADOOP-Build/523//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/hudson/job/PreCommit-HADOOP-Build/523//console

This message is automatically generated.

> Adding a util method in FileUtil for directory listing
> ------------------------------------------------------
>                 Key: HADOOP-7322
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7322
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Bharath Mundlapudi
>            Assignee: Bharath Mundlapudi
>            Priority: Minor
>             Fix For: 0.23.0
>         Attachments: HADOOP-7322-1.patch, HADOOP-7322-2.patch, HADOOP-7322-3.patch
> While testing Disk Fail Inplace, we encountered lots of NPE from Dir.listFiles API. This
API can return null when Dir is not directory or disk is bad. I am proposing to have a File
Util which can be used consistently across to deal with disk issues. This util api will do
the following:
> 1. When error happens it will throw IOException
> 2. Else it will return empty list or list of files.
> Signature:
> File[] FileUtil.listFiles(File dir) throws IOException {}
> This way we no need to write wrapper code every where. Also, API is consistent with the

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