import scala.language.postfixOps
object Test
{
  class Foo[T](x : Array[AnyRef]) { def bar = x.asInstanceOf[Array[T]] }
  class Bar[T](x : Array[T]) { def bar = x.asInstanceOf[Array[AnyRef]] }

  object FromMono{
     def mainer(args : Array[String]) = (new Foo[AnyRef](Array[AnyRef]("Halp!"))).bar
  }

  object FromPoly{
    def mainer(args : Array[String]) = (new Bar[AnyRef](Array[AnyRef]("Halp!"))).bar
  }

  def main(args: Array[String]): Unit = {
    println(FromMono mainer null mkString)
    println(FromPoly mainer null mkString)
  }
}