Why is PermGen space growing?

Question

I\'ve read a few articles, and I understood the following (please correct me and/or edit the question if I\'m wrong):

The java heap is segmented like this:

Answer 1

The most common causes I've seen are:

• Custom classloaders that don't carefully free up older classes after loading new ones.
• Classes remaining in PermGen after redeploying an application multiple times (more common in Dev than Prod)
• Heavy use of Proxy classes, which are created synthetically during runtime. It's easy to create new Proxy classes when an a single class definition could be reused for multiple instances.