Termination of Routee is not sending Termination Message to Router in Akka Classic Routing (Scala)

Question

I'm trying to use RoundRobinPool to create routees in router. But I'm not able to apply watch on routees because I don't know the paths of routees as in Pool Routing these are making automatically. Help me, how I can watch termination of routee in router actor.

Here is code of Router Class,

  class Router extends Actor {
    var router = context.actorOf(RoundRobinPool(3).props(Props[Worker]), "router")

    def receive = {
      case Work(message) =>
        log.info("I'm Router, Sending Message({}), to Worker!", message)
        router.tell(Work(message),sender)

      case Terminated(actor) =>
        log.info("Oh, Worker({}) is Stopped! Creating New Worker!", actor)
    }
  }`
```

Here is code of Worker Class, 

```
  `class Worker extends Actor {
    def receive = {
      case Work(message) =>
        log.info("I've Received Message({}), From {}!", message, sender.path)
        if (message == PoisonPill) {
          log.info("Sending PoisonPill To Self! {}",self)
          self ! PoisonPill
        } else
          sender ! "Done"
    }
  }`
```
Implementation,

```
  `object ClassicRoutingUsingPoolDemo extends App {
    val system = ActorSystem("system")
    val poolRouter = system.actorOf(Props[Router], "poolRouter")

    poolRouter.tell(Work(PoisonPill),poolRouter)
  }`
```