posted 16 years ago
I think it's simply because the parent servlet ussually has some of it's own intiallization to do. When you override it, you have to make sure that you allow it to do what it needs to by calling super. The destroy method, however, doesn't inherently do anything so it doesn't matter if you prevent the parent for running it's destroy by overriding it and not calling super.
Author and all-around good cowpoke