Hi Patrik, I tried your suggestion, unfortunately I get the same compile time error )-:
object FSMDoubleExtendDemo { def props(name: String): Props = Props(new FSMDoubleExtendDemo()) sealed trait Params case object Empty extends Params sealed trait State case object State1 extends State case object State2 extends State } class FSMDoubleExtendDemo extends Actor with FSM[State, Params] with DiagnosticActorLogging { log.debug("startup") } class TestRunner extends CCPBaseLoggingTest with BeforeAndAfterAll { implicit val system = createActorSystem @Test(groups = Array("demo")) def createFSM(): Unit = { EventFilter.debug(message = "startup", occurrences = 1) intercept { system.actorOf(FSMDoubleExtendDemo.props("testStartupMessage")) } } } any other ideas? Best Michael (and sorry for the long delay!) -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to akka-user+unsubscr...@googlegroups.com. To post to this group, send email to akka-user@googlegroups.com. Visit this group at http://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.