ClassLoader Leak - Are they worth solving?

Question

ClassLoader leaks usually result in java.lang.OutOfMemoryError: PermGen. In the instance of working on application servers you may see this as a result of

Answer 1

It really depends on the application, or rather, the deployment process being used. Many applications are only ever redeplyoed during development, new releases happen once every few months, and the application server is restarted for other reasons far more often than the app is deployed. In those circumstances, chasing Classloader leaks is a waste of time.

Of course, if you plan on implementing a continuous deployment process, especially in a high-availability environment, then Classloader leaks are something you really need to tackle. But there are a lot of other things you need to do better than most projects before that becomes an issue.