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https://issues.apache.org/jira/browse/HADOOP-8419?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15011368#comment-15011368
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Hudson commented on HADOOP-8419:
--------------------------------
FAILURE: Integrated in Hadoop-trunk-Commit #8819 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/8819/])
Moved HADOOP-8419 in CHANGES.txt from 3.0.0 to 2.8.0. (ozawa: rev
169921e8abc2efef1bda69ad0d4b530488c639d8)
* hadoop-common-project/hadoop-common/CHANGES.txt
> 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
> Fix For: 1.1.2, 2.0.5-alpha, 2.8.0
>
> Attachments: HADOOP-8419-branch-1.patch,
> HADOOP-8419-branch1-v2.patch, HADOOP-8419-trunk-v2.patch,
> HADOOP-8419-trunk.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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