public void removeNXWarrant(Warrant w){
  w.removePropertyChangeListener(this);
  _warList.remove(w);
  _warNX.remove(w);
  _manager.deregister(w);
  w.dispose();
}

public void removeNXWarrant ( Warrant w ) { w . removePropertyChangeListener ( this ) ; _warList . remove ( w ) ; _warNX . remove ( w ) ; _manager . deregister ( w ) ; w . dispose ( ) ; }
removes any warrant , not just nxwarrant
