public void addLifecycleListener(RemoteActorRef actor, LifecycleListener listener) {
actor.internalSendNonSuspendable(new RemoteActorRegisterListenerAdminMessage((ActorRefImpl.ActorLifecycleListener) listener));
}
public void removeLifecycleListener(RemoteActorRef actor, LifecycleListener listener) {
actor.internalSendNonSuspendable(new RemoteActorUnregisterListenerAdminMessage(listener));
}