public void updateSelf(ActorReference actorReference) {
   ((JoinDirector) actorReference).setUAL(getUAL());
   ((JoinDirector) actorReference).setUAN(getUAN());
   self = new JoinDirector(false, getUAL());
   self.setUAN(getUAN());
   self.setUAL(getUAL());
   self.muteGC();
 }