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From "Janko Heilgeist (JIRA)" <j...@apache.org>
Subject [jira] Commented: (GERONIMO-4543) EAR classloader not garbage collected
Date Thu, 12 Mar 2009 13:36:50 GMT

    [ https://issues.apache.org/jira/browse/GERONIMO-4543?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12681311#action_12681311
] 

Janko Heilgeist commented on GERONIMO-4543:
-------------------------------------------

Java6 says "Please use CMSClassUnloadingEnabled in place of CMSPermGenSweepingEnabled in the
future" if it is started with "-XX:+CMSPermGenSweepingEnabled"  so I stopped using this option
recently.

I'll admit that this report is not a major issue. I just discovered the leaks when I debugged
an application. They haven't caused any real problems yet.

> EAR classloader not garbage collected
> -------------------------------------
>
>                 Key: GERONIMO-4543
>                 URL: https://issues.apache.org/jira/browse/GERONIMO-4543
>             Project: Geronimo
>          Issue Type: Bug
>      Security Level: public(Regular issues) 
>          Components: Memory Leaks, transaction manager
>    Affects Versions: 2.2
>            Reporter: Janko Heilgeist
>            Priority: Blocker
>             Fix For: 2.2
>
>         Attachments: ear-with-tx.tar.gz, privileged_currenttime.patch
>
>
> The TransactionTimer$CurrentTime thread inherits the AccessControlContext of the first
EAR/WAR/EJB-jar that carries out a transaction. Thus, the particular EAR/WAR/EJB-jar's classloader
is prevented from being GCed.
> See http://www.nabble.com/PermGen-space-issues-td22079768s134.html

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