Demonstrate slow riak client shutdown

built.sbt

lazy val root = (project in file(".")).
  settings(
    organization := "au.net.strategicdata",
    name := "riak-slow",
    version := "0.1",
    scalaVersion := "2.11.8"
  )

libraryDependencies += "com.basho.riak" % "riak-client" % "2.1.0"

javacOptions ++= Seq("-source", "1.8", "-target", "1.8", "-Xlint")

riak.scala

package riak.bug
import scala.collection.JavaConverters._ // The Riak library needs conversions
import com.basho.riak.client.api.RiakClient

object RiakDemo {
  def main(args: Array[String]): Unit = {
    println("starting up");
    if (! sys.env.contains("RIAK_SERVER")) {
      println("Please define a riak server address in RIAK_SERVER")
      sys.exit(1)
    }

    val riak = new RiakConnection(List(sys.env("RIAK_SERVER")))
    riak.shutdown

    println("done, exiting")
    sys.exit(0)
  }
}

class RiakConnection(servers: List[String]) {
  val riak = RiakClient.newClient(servers.asJava)

  def shutdown = riak.shutdown
}