- RaftActorBehavior oldBehavior = behavior;
- behavior = behavior.handleMessage(getSender(), message);
- if(behavior != oldBehavior && behaviorStateChangeLatch != null) {
- behaviorStateChangeLatch.countDown();
+ final RaftActorBehavior nextBehavior = behavior.handleMessage(getSender(), message);
+ if (nextBehavior != null) {
+ RaftActorBehavior oldBehavior = behavior;
+ behavior = nextBehavior;
+ if(behavior != oldBehavior && behaviorStateChangeLatch != null) {
+ behaviorStateChangeLatch.countDown();
+ }