I notice that when I define Source.Queue inside a trait that will be
*mixedin* with other traits it will throw an exception. But if Source.Queue
is defined in the implementation class, it works fine. Is this suppose to
be the correct behavior?
trait Requests extends Actor with ActorLogging {
import context.dispatcher
implicit val mat: ActorMaterializer
final val receive: Receive = {
case _ => initialize()
}
def initialize(): Unit = {
val actorSubscriber = ActorSubscriber[UntypedOrderAndSender](anActor)
Source.queue(0, OverflowStrategy.dropNew).to(Sink.fromSubscriber(
actorSubscriber)).run()
}
}
class RequestsImpl(implicit val mat: ActorMaterializer) extends Request
*Exception: *
Uncaught error from thread
> [HttpRequestsSpec-akka.actor.default-dispatcher-4] shutting down JVM since
> 'akka.jvm-exit-on-fatal-error' is enabled for ActorSystem[RequestsSpec]
> java.lang.NoSuchMethodError:
> akka.stream.scaladsl.Source$.queue(ILakka/stream/OverflowStrategy;)Lakka/stream/scaladsl/Source;
> at RequestsImpl$class.initialize(.scala:74)
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