Java Class (PermGen) Memory Leak (Web Applications) - Generic Solution?

Question

I have a perm gen memory leak, that I know. Profiling using jvisualvm shows that when doing hot deployment (e.g. stop and start an application without killing the JVM, in to

Answer 1

There is an unsatisfiying but easy solution: Don't hotdeploy in production environments. You could setup a cluster of two servlet containers and them update one at a time with a restart.