Replicates https://www.assembla.com/spaces/ddEDvgVAKr3QrUeJe5aVNr/tickets/3276

ActorSelections.scala

import akka.actor.{DeadLetter, ActorSystem, Props, Actor}

class Actor1 extends Actor{
  override def preStart() {
    context.actorOf(Props[Actor2], "actor2")
    context.system.eventStream.subscribe(self, classOf[DeadLetter])
  }
  def receive = {
    case x =>
      println(x)
      val as2 = context.actorSelection("/user/actor2")
      as2 ! "context.actorselection top"    // This never gets received
      val s2 = context.system.actorSelection("/user/actor2")
      s2 ! "system.actorSelection top"
      val c2 = context.actorSelection("/actor2")
      c2 ! "context.actorSelection child"
      val af2 = context.actorFor("/user/actor2")
      af2 ! "context.actorFor top"
  }
}

class Actor2 extends Actor{
  override def preStart() { println("my path is: " + context.self.path) }
  def receive = {
    case x => println(x)
  }
}

object ActorSelections {
  def main(args: Array[String]) {
    val sys = ActorSystem("test")
    implicit val ec = sys.dispatcher

    //Starting an Actor1 from system which in turn starts an Actor2
    val a1 = sys.actorOf(Props[Actor1], "actor1")

    //Starting an Actor2 from system
    val a2 = sys.actorOf(Props[Actor2], "actor2")

    Thread.sleep(1000)

    a1 ! "go"

    Thread.sleep(1000)

    sys.shutdown()
  }
}

// Output is:
// my path is: akka://test/user/actor2
// my path is: akka://test/user/actor1/actor2
// go
// system.actorSelection top
// context.actorFor top
// context.actorSelection child