Optional<ActorRef> roleChangeNotifier = getRoleChangeNotifier();
if(!Objects.equal(oldBehaviorLeaderId, currentBehavior.getLeaderId())) {
if(roleChangeNotifier.isPresent()) {
Optional<ActorRef> roleChangeNotifier = getRoleChangeNotifier();
if(!Objects.equal(oldBehaviorLeaderId, currentBehavior.getLeaderId())) {
if(roleChangeNotifier.isPresent()) {