akka-exception-sample.scala

import akka.actor.{ActorSystem, Props, Actor}
import akka.actor.OneForOneStrategy
import akka.actor.SupervisorStrategy._
import scala.concurrent.duration._

class Supervisor extends Actor {

  override val supervisorStrategy =
    OneForOneStrategy(maxNrOfRetries = 10, withinTimeRange = 1 minute) {
      case _: ArithmeticException => Resume
      case _: NullPointerException => Restart
      case _: IllegalArgumentException => Stop
      case _: Exception => Escalate
    }

  def receive = {
    case p: Props => {
      val child = context.actorOf(p)
      println("Supervisor created " + child.path + p)
    }
  }
}

class Child extends Actor {

  throw new Exception("Intentional Exception within Child Actor's constructor")
  println("Child actor initiated")

  def receive = {
    case x: Any => println( "" + x.toString )
  }
}

object Main {
  def main(args: Array[String]): Unit = {

    val system = ActorSystem("main")
    val supervisor = system.actorOf(Props[Supervisor])

    println("main() started")
    supervisor ! Props[Child]

    Thread.sleep(2000)

    system.terminate()
    println("main() ended")
  }
}

error.log

[ERROR] [03/19/2016 22:26:07.167] [main-akka.actor.default-dispatcher-3] [akka://main/user/$a] Intentional Exception within Child Actor's constructor
akka.actor.ActorInitializationException: exception during creation
        at akka.actor.ActorInitializationException$.apply(Actor.scala:172)
        at akka.actor.ActorCell.create(ActorCell.scala:606)
        at akka.actor.ActorCell.invokeAll$1(ActorCell.scala:461)
        at akka.actor.ActorCell.systemInvoke(ActorCell.scala:483)
        at akka.dispatch.Mailbox.processAllSystemMessages(Mailbox.scala:282)
        at akka.dispatch.Mailbox.run(Mailbox.scala:223)
        at akka.dispatch.Mailbox.exec(Mailbox.scala:234)
        at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
        at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
        at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
        at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.lang.Exception: Intentional Exception within Child Actor's constructor
        at Child.<init>(SuperVisory.scala:26)
        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:44)
        at akka.actor.NoArgsReflectConstructor.produce(IndirectActorProducer.scala:105)
        at akka.actor.Props.newActor(Props.scala:214)
        at akka.actor.ActorCell.newActor(ActorCell.scala:562)
        at akka.actor.ActorCell.create(ActorCell.scala:588)
        ... 9 more