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https://issues.apache.org/jira/browse/HIVE-4574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13660858#comment-13660858
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Thejas M Nair commented on HIVE-4574:
-------------------------------------
I have filed a bug report with openjdk (oracle). Unfortunately, they create the
public bug only after review, so I don't have a link to it right now.
> XMLEncoder thread safety issues in openjdk7 causes HiveServer2 to be stuck
> --------------------------------------------------------------------------
>
> Key: HIVE-4574
> URL: https://issues.apache.org/jira/browse/HIVE-4574
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Affects Versions: 0.11.0
> Reporter: Thejas M Nair
> Assignee: Thejas M Nair
>
> In open jdk7, XMLEncoder.writeObject call leads to calls to
> java.beans.MethodFinder.findMethod(). MethodFinder class not thread safe
> because it uses a static WeakHashMap that would get used from multiple
> threads. See -
> http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/7-b147/com/sun/beans/finder/MethodFinder.java#46
> Concurrent access to HashMap implementation that are not thread safe can
> sometimes result in infinite-loops and other problems. If jdk7 is in use, it
> makes sense to synchronize calls to XMLEncoder.writeObject .
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