gistfile1.scala

class ActorRefSerializer(val system: ExtendedActorSystem) extends kryo.Serializer[ActorRef] {

	override def read(kryo: Kryo, input: Input, typ: Class[ActorRef]): ActorRef = {
		val path = input.readString()
		system.actorFor(path)
	}

	override def write(kryo: Kryo, output: Output, obj: ActorRef) = {
		Serialization.currentTransportAddress.value match {
			case null => output.writeString(obj.path.toString)
			case addr => output.writeString(obj.path.toStringWithAddress(addr))
		}
	}
}

//////////////
// And then inside getKryo...
kryo.addDefaultSerializer(classOf[ActorRef], new ActorRefSerializer(system))