TimeoutController.scala

package controllers

import java.util.concurrent._
import play.api._
import play.api.mvc._
import play.api.Play.current
import play.api.libs.concurrent._

object TimeoutController extends Controller {
  def index(t:Long) = Action {
    val promiseOfLong = Akka.future(new TimeoutThread(t).call())
    Async{
      promiseOfLong.map(i => Ok(""))
    }
  }
}

case class TimeoutThread(t:Long) extends Callable[Long] {
  def call():Long = {
    Thread.sleep(t)
    t
  }
}