The bottom line is that "add" is ONLY standard for "Listener" methods, and "Listener" methods MUST have the word "Listener" in them.
I think remove is also a standard javabeans method prefix,the method must have a word "Listener" in them.
e.g.
public void removeEListener(EListener)
public void removePListener(VetoableChangeListener)
public void removeVetoableChangeListener(VetoableChangeListener)