Myths of Memory Management:

"In a GC language, the garbage collector will only reclaim resources which are no longer live. Assuring a resource is reclaimed is no easy task in a non-trivial piece of software. The best way to assure a resource is released is for the programmer to set pointers to null when they no longer refer to a resource (or let them go out of scope), and to minimize the sharing of objects (which is just good practice)."