> From: xu cheng [mailto:xcheng....@gmail.com] > Subject: Re: OutOfMemoryError some time on some tomcat!!!!1
> > hanging onto a reference to an object from your webapp classes, > > preventing the old webapp deployment from being garbage collected. > what kind of object do you mean by saying this? Something is keeping a reference to an object (or class) defined in your webapp, or to the classloader for your webapp. Likely candidates include thread locals, loggers, and auxiliary threads started (but not stopped) by the webapp. Until the offending reference is nulled out, the object can't be collected, so its classloader can't be collected, so the old webapp stays in memory. Any heap profiler should be able to find the references to your webapp classes, although the process may well be tedious. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
