demonstrates the https AbruptTerminationException issue (requires ammonite)

test.sc

#!/usr/bin/env amm
import $ivy.`com.typesafe.akka::akka-http:10.0.4`

import akka.actor._
import akka.http.scaladsl.Http
import akka.http.scaladsl.model.{ HttpRequest, Uri }
import akka.stream._
import scala.concurrent.duration._
import scala.concurrent.Await
import scala.util.control.NonFatal

implicit val system = ActorSystem("Test")
implicit val materializer = ActorMaterializer()

try {
  val thing = Http().singleRequest(HttpRequest(uri = Uri("https://twitter.com")))
  val result = Await.result(thing, 10.seconds)
  println(s"got result ${result.status}")

  // if we sleep then we do not see the exception
  // Thread.sleep(10000)
} catch {
  case NonFatal(ex) =>
    println(s"ERROR: ${ex.getMessage}")
    ex.printStackTrace(System.out)
} finally {
  Await.result(Http().shutdownAllConnectionPools(), Duration.Inf)
  materializer.shutdown()
  // materializer.shutdown()
  system.terminate()
}