[ JDK VERSION : 1.6.22 ]

Examine the following class(es)
@Stateless
public class NewClass
        extends OldClass
        implements NewClassFacade {

  @Override
  public void doIt() {
    new Call("police", 112);
  }
}

abstract class OldClass {
  public abstract void doIt();
}
Nothing spectacular, a standard business interface, however, if you created the
NewClassFacade without (or add a new one) with the "Expose method..." hint  to
an empty interface it will end up looking like this;
interface NewClassFacade {

  @java.lang.Override
  public void doIt();

}
...wich will cause an error.