4 Replies Latest reply on Apr 24, 2007 6:30 PM by howzr

Javassist PermGen Problem with MyFaces

mpeter Jan 19, 2007 9:31 AM

Hello,

we have some problems with Javassist in combination with MyFaces "client state saving" activated ("Server State Saving" works without problems):
Everytime when a detached EJB3/Hibernate object is restored from "Client View", Javassist generates a new proxy for the class. MyFaces uses an ObjectInputStream to deserialize the saved objects.

( There was a similiar problem with javassist and Remote EJB Calls: http://jira.jboss.com/jira/browse/JASSIST-30 )

Does anybody know this problem ?

br
Matthias

1. Re: Javassist PermGen Problem with MyFaces

ngtdave Jan 22, 2007 9:50 AM (in response to mpeter)

We were having similar problems with PermGen unrelated to remote calls, we upgraded to Javassist 3.4 and Hibernate 3.2.1.GA off of HEAD, and it looks to have greatly improved the problem. Might be worth trying for you as well.
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2. Re: Javassist PermGen Problem with MyFaces

mpeter Jan 24, 2007 3:29 AM (in response to mpeter)

We are already using Javassist 3.4 but Hibernate in Version 3.2.0.GA.
I will check the newer Hibernate Version.

Thanks
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3. Re: Javassist PermGen Problem with MyFaces

mpeter Feb 19, 2007 2:36 PM (in response to mpeter)

The newer hibernate version didn't solve the problem.
I'll post the problem to the MyFaces forum, too.
I can't imagine that no MyFaces user has the same problem ???
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4. Re: Javassist PermGen Problem with MyFaces

howzr Apr 24, 2007 6:30 PM (in response to mpeter)

This may or not be related. But I recently found that using Tomahawk tags (dataList, dataTable) in my Seam/EJB3 was causing serious PermGen memory leak problems. I replaced both with other MyFaces and Seam components and my problem went away. Granted, the Seam documentation now recommends against using Tomahawk tags, so consider this a re-affirmation.
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