Recurring “PermGen” in Tomcat 6

Question

I keep getting a \"PermGen\" error on my Tomcat 6 server.

I know what application is causing the problem, but I am not sure why it is doing so. The application is

Answer 1

I have seen lots of permgen errors when tomcat is reloaded after a code change when using hibernate and spring, I think its due to the logger/ehcache instances not being shut down properly.