problem with java.lang.OutOfMemoryError: PermGen space

I've already increased permgen to what seems the maximum allowed (199M), is there anything that can be done ?

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Upload the (zipped) heap dump to Jetbrains FTP for analysis?
Make sure to create a matching JIRA request that mentions the name of the uploaded zip file and provides some background on the project(s) you had open, what you were doing at the time of the crash, etc.

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There is no permgen limit at 199M as far as I know. I can set IntelliJ IDEA's permgen to 300M without problems, for example. Setting your -Xmx to a smaller value might help (if you have currently set it to a large value). Also disabling unused plugins saves permgen space.

Bas

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