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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7101) Potential null dereference in DFSck#doWork()
Date Wed, 08 Jul 2015 22:33:06 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14619501#comment-14619501
] 

Hadoop QA commented on HDFS-7101:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
\\
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | patch |   0m  0s | The patch command could not apply the patch during
dryrun. |
\\
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12671192/HDFS-7101_001.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 2e3d83f |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/11631/console |


This message was automatically generated.

> Potential null dereference in DFSck#doWork()
> --------------------------------------------
>
>                 Key: HDFS-7101
>                 URL: https://issues.apache.org/jira/browse/HDFS-7101
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.5.1
>            Reporter: Ted Yu
>            Assignee: skrho
>            Priority: Minor
>              Labels: BB2015-05-TBR
>         Attachments: HDFS-7101_001.patch
>
>
> {code}
>     String lastLine = null;
>     int errCode = -1;
>     try {
>       while ((line = input.readLine()) != null) {
> ...
>     if (lastLine.endsWith(NamenodeFsck.HEALTHY_STATUS)) {
>       errCode = 0;
> {code}
> If readLine() throws exception, lastLine may be null, leading to NPE.



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