@deprecated("Suppress warnings", since="2.11") object Test { import scala.actors.ReplyReactor def main(args: Array[String]) { val a = new ReplyReactor { def act() { try { react { case 'hello => sender ! 'hello } } catch { case e: Throwable if !e.isInstanceOf[scala.util.control.ControlThrowable] => e.printStackTrace() } } } a.start() val b = new ReplyReactor { def act() { try { react { case r: ReplyReactor => r ! 'hello react { case any => println(any) } } } catch { case e: Throwable if !e.isInstanceOf[scala.util.control.ControlThrowable] => e.printStackTrace() } } } b.start() b ! a } }