[jboss-jira] [JBoss JIRA] (AS7-6849) ClassLoader memory leak with MDB

[Vlad Arkhipov (JIRA)]

    [ https://issues.jboss.org/browse/AS7-6849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12768998#comment-12768998 ] 

Vlad Arkhipov commented on AS7-6849:
------------------------------------

It seems that the problem is in [https://github.com/jbossas/jboss-threads/blob/master/src/main/java/org/jboss/threads/JBossThreadFactory.java]. createThread() creates new threads using creator's thread context class loader (it's incorrect, isn't it? should it use worker's class loader instead?). The simplest way to fix it is adding
{code}thread.setContextClassLoader(null);{code}

This issue also may be related to https://issues.jboss.org/browse/JBTHR-20
                
> ClassLoader memory leak with MDB
> --------------------------------
>
>                 Key: AS7-6849
>                 URL: https://issues.jboss.org/browse/AS7-6849
>             Project: Application Server 7
>          Issue Type: Bug
>          Components: JCA
>    Affects Versions: EAP 6.1.0.Alpha (7.2.0.Final)
>            Reporter: Vlad Arkhipov
>            Assignee: Stefano Maestri
>            Priority: Critical
>         Attachments: leak.tar.gz
>
>
> There are still some references to MDB class (NOT to the *instance*) if you undeploy an archive from the AS. Sooner or later it leads to OutOfMemory Permgen exception after multiple redeployments.

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