Error creating child actor - akka

Question

In an Actor I create a child actor like below
ActorRef sessionEventHandlerActor = getContext().actorOf(Props.create(SessionHandler.class), sessionId);
and this is SessionHandler actor:
public class SessionHandler extends UntypedActor {
public SessionHandler() {
getContext().setReceiveTimeout(Duration.create(1, TimeUnit.MINUTES));
}
#Override
public void onReceive(Object message) throws Exception {
}
}
and I get following error:
Caused by: akka.actor.ActorInitializationException: You cannot create an instance of [actors.SessionHandler] explicitly using the constructor (new). You have to use one of the 'actorOf' factory methods to create a new actor. See the documentation.
at akka.actor.ActorInitializationException$.apply(Actor.scala:165)
at akka.actor.Actor$class.$init$(Actor.scala:421)
at akka.actor.UntypedActor.<init>(UntypedActor.scala:97)
at org.esi.actors.SessionHandler.<init>(SessionHandler.java:22)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at java.lang.Class.newInstance(Class.java:442)
at akka.util.Reflect$.instantiate(Reflect.scala:45)
at akka.actor.NoArgsReflectConstructor.produce(Props.scala:358)
at akka.actor.Props.newActor(Props.scala:249)
at akka.actor.ActorCell.newActor(ActorCell.scala:552)
at akka.actor.ActorCell.create(ActorCell.scala:578)
I do not see any issue in how I create the actor. Does any one know what the problem can be?
Thank you

Answer 1

I think there's no problem anymore, but I think you need to leave out the the sessionId argument, because create will try to apply it to the constructor.
ActorRef sessionEventHandlerActor = getContext().actorOf(Props.create(SessionHandler.class));
As far as I understood the Java API. I only used it in scala.