I'd like to be able to drop some methods (wait and notify) from java.lang.Object from the method completion dropdown.
I never use these, since I'm doing J2EE.
Alternatively, if hiding them is too strict, push them to a sub-menu.
The configuration for code completion should then enable the user to select a list of methods that would not be suggested or which would be pushed to the submenu.
An alternative, somewhat simpler suggestion, is to always push the java.lang.Object methods to the bottom of the list (unless overridden).