> From: Bruce Wayne [mailto:chur...@gmail.com]
> Subject: Re: java.lang.OutOfMemoryError: PermGen space
> 
> What's "too many classes" ?

More than will fit in PermGen.

> Heap usage is around 1GB.

You need to be more specific; post the sizes for each portion of the heap, 
including PermGen.  Also, which GC algorithms are being used?  You'll find them 
on the VM Summary tab.

> -Xms1024m -Xmx3012m

Generally better in a server environment to set -Xms and -Xmx to the same 
value; avoids pointless heap resizing.  Nothing to do with your PermGen 
problem, however.

> -XX:NewSize=512m -XX:MaxNewSize=1024m

Why are you setting these explicitly?  Let the JVM do it, so it can adjust them 
appropriately for the characteristics of the webapps.

- Chuck


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