Subject: RE: What do I do with a heap dump? (OOM Permgen) 2007-11-02 - By Caldarale, Charles R
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> From: Peter Crowther [mailto:Peter.Crowther@(protected)]
> Subject: RE: What do I do with a heap dump? (OOM Permgen)
>
> As far as I know, public enemy #1 for eating PermGen space is
> still developers using the Singleton pattern in their code
> and not having listeners to null out the singleton instance
> when the webapp is undeployed.
Analagous use of ThreadLocal is also a subtle contributor to the
problem. The offending references must be cleared at the end of
processing of each request, since listeners don't have ready access to
the thread pool.
- Chuck
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