TIOBE - Java Coding Standard

Rule: Finalizer2

Synopsis:	Finalize should do something besides just calling super.finalize()
Language:	Java
Severity Level:	3
Category:	Finalizer

Description:

If the finalize() is implemented, it should do something besides just calling super.finalize().

public class Foo {
   protected void finalize() {
     super.finalize();
   }
}