jBoss 4.0.2 deploying same WAR multiple times causes jBoss to crash because of PermGem/Out-of-Memory Errors

Question

I develop web applications and I use jBoss 4.0.2 and when I have redeployed my WAR several times with eclipse, jBoss will crash because it runs out of memory. And when I hav

Answer 1

I'm not sure it's linked, but I suspect it is - JBoss is not J2EE compliant as far as implementing application separation as it comes out of the box.

As it comes, there is one classloader into which all classes are put and thus it is not possible to unload classes and therefore you are going to have this problem. You can configure jboss to be more J2EE compliant in this respect.

Are you getting the "out of memory Permgen" or are you getting regular out of memory?

I also made progress by connecting JProfiler up to it and checking memory usage with this.

I ended up simply restarting Jboss all the time - didn't take up too much time.