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https://issues.apache.org/jira/browse/HADOOP-8419?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13539240#comment-13539240
]
Hadoop QA commented on HADOOP-8419:
-----------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12562314/HADOOP-8419-trunk-v2.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-common-project/hadoop-common.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/1924//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/1924//console
This message is automatically generated.
> GzipCodec NPE upon reset with IBM JDK
> -------------------------------------
>
> Key: HADOOP-8419
> URL: https://issues.apache.org/jira/browse/HADOOP-8419
> Project: Hadoop Common
> Issue Type: Bug
> Components: io
> Affects Versions: 1.0.3
> Reporter: Luke Lu
> Assignee: Yu Li
> Labels: gzip, ibm-jdk
> Attachments: HADOOP-8419-branch-1.patch,
> HADOOP-8419-branch1-v2.patch, HADOOP-8419-trunk.patch,
> HADOOP-8419-trunk-v2.patch
>
>
> The GzipCodec will NPE upon reset after finish when the native zlib codec is
> not loaded. When the native zlib is loaded the codec creates a
> CompressorOutputStream that doesn't have the problem, otherwise, the
> GZipCodec uses GZIPOutputStream which is extended to provide the resetState
> method. Since IBM JDK 6 SR9 FP2 including the current JDK 6 SR10,
> GZIPOutputStream#finish will release the underlying deflater, which causes
> NPE upon reset. This seems to be an IBM JDK quirk as Sun JDK and OpenJDK
> doesn't have this issue.
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