package ConnectorPackage;
public class MyHost extends HostPackage.Host {

  // an inner class to implement the expectedOp()
  ComponentPackage.Participant part = 
    // new ComponentPackage.Component.Participant() {
    new ComponentPackage.Participant() {
    public Object expectedOp() { return aux(); }
    public Object get_host() { return MyHost.this; }
  } ;

  // rename the old method
  public String aux() { return super.toModify(); }

  // override the replaced method. 
  public String toModify() {  return (String) part.Op(); }

  public static void main(String[] args) {
    System.err.println(new MyHost().toModify()); 
  }

}