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Posted to dev@commons.apache.org by "Henri Yandell (JIRA)" <ji...@apache.org> on 2006/12/07 22:45:24 UTC

[jira] Resolved: (LANG-262) Use of enum prevents a classloader from being garbage collected resuling in out of memory exceptions.

     [ http://issues.apache.org/jira/browse/LANG-262?page=all ]

Henri Yandell resolved LANG-262.
--------------------------------

    Resolution: Fixed

I think my research class shows that things should work. Making it a unit test seems a lot more painful, which I'm finding very hard to have the energy for. Resolving this as fixed.

> Use of enum prevents a classloader from being garbage collected resuling in out of memory exceptions.
> -----------------------------------------------------------------------------------------------------
>
>                 Key: LANG-262
>                 URL: http://issues.apache.org/jira/browse/LANG-262
>             Project: Commons Lang
>          Issue Type: Bug
>         Environment: All
>            Reporter: Neil Redway
>            Priority: Critical
>             Fix For: 2.3
>
>         Attachments: ClassMapping.java
>
>
> When an enum is created it is placed in the static hashmap - cEnumClasses.  If the enum is created from a classloader which has a limited lifetime then due to the strong reference the classloader is never garbage collected resulting in a memory leak.  
> I believe that making the cEnumClasses a WeakHashMap should resolve the problem.

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