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https://issues.apache.org/jira/browse/MYFACES-2942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12970449#action_12970449
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Andrei Zagorneanu commented on MYFACES-2942:
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Is it resolved for MyFaces 1.2.x also? I'm using MyFaces 1.2.9 and I'm getting 
the following when I'm stopping Tomcat:

11.12.2010 12:55:04 org.apache.catalina.loader.WebappClassLoader 
clearThreadLocalMap
SEVERE: The web application [/foe-web-app] created a ThreadLocal with key of 
type [java.lang.ThreadLocal] (value [java.lang.threadlo...@9eca0a]) and a value 
of type [org.apache.myfaces.config.RuntimeConfig] (value 
[org.apache.myfaces.config.runtimecon...@e28500]) but failed to remove it when 
the web application was stopped. This is very likely to create a memory leak.
11.12.2010 12:55:04 org.apache.catalina.loader.WebappClassLoader 
clearThreadLocalMap
SEVERE: The web application [/foe-web-app] created a ThreadLocal with key of 
type [null] (value 
[org.apache.myfaces.el.convert.variableresolvertoelresolve...@1414d1e]) and a 
value of type [java.util.HashSet] (value [[]]) but failed to remove it when the 
web application was stopped. This is very likely to create a memory leak.


> Memory Leak in MyFaces 2.0.1 probably as well in 2.0.2
> ------------------------------------------------------
>
>                 Key: MYFACES-2942
>                 URL: https://issues.apache.org/jira/browse/MYFACES-2942
>             Project: MyFaces Core
>          Issue Type: Bug
>    Affects Versions: 2.0.1, 2.0.2
>         Environment: JBOSS AS
>            Reporter: Werner Punz
>            Assignee: Jakob Korherr
>            Priority: Critical
>             Fix For: 2.0.3-SNAPSHOT
>
>         Attachments: MYFACES-2942-RuntimeConfig.patch
>
>
> Stan Silvert from JBoss reports:
> I'm pretty sure 2.0.1 has a memory leak on undeploy.  Mojarra had an undeploy 
> leak and it took a long time to track it down.  The same test I was using on 
> Mojarra also failed on MyFaces but I haven't had time to track down the leak 
> in MyFaces.
> Maybe this is fixed in 2.0.2?  If not maybe someone can go ahead and take a 
> look?  The mem leak keeps MyFaces from passing TCK on JBoss AS.  To test, all 
> you need to do is create a small exploaded JSF app.  Then have a script that 
> touches web.xml every 10 seconds.  That will cause the app to redeploy.  You 
> will get a PermGen error in about an hour. 

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