How to analyze PermGen contents?

Question

I want to get a dump of the PermGen to see why it is filling. Is there a way to analyze this? I already know about the common suspects like log4j, tomcat webapp reloading et

Answer 1

Will jmap -permgen fit the bill?

See the troubleshooting guide for Java http://java.sun.com/javase/6/webnotes/trouble/TSG-VM/html/memleaks.html#gbyuu