sample snippets for Props spotlight blogpost

bad.java

final ActorRef child = getContext().actorOf(new Props(
  new UntypedActorFactory() {
    @Override public UntypedActor create() {
      // getSender() will not yield what you think it should
      return new OtherActor(getSender());
    }
  }))

bad.scala

// it is completely random what that actor’s constructor arg will be
val child = context.actorOf(Props(new OtherActor(sender)))

new.java

final ActorRef child =
  getContext().actorOf(Props.create(OtherActor.class, getSender()));

new.scala

val child = context.actorOf(Props(classOf[OtherActor], sender))