package test;
object Test {
  abstract class SortedSetWrapper[A] {
    def underlying : java.util.TreeSet;
  }
  class TreeSet[A <% Ordered[A]](val underlying : java.util.TreeSet) extends SortedSetWrapper[A] {
    private class Comparator extends java.util.Comparator {
      def compare(x0 : Any, x1 : Any) = 
        x0.asInstanceOf[A].compare(x1.asInstanceOf[A]);
    }
    def this() = this(new java.util.TreeSet(new Comparator));
  }
  def main(args : Array[String]) : Unit = 
    new TreeSet[String];
}