public class ExercisePatClifton implements Callable<String> {
@Override
public String call() throws Exception {
InitialContext ctx = new InitialContext();
String name = "java:global/ejb3-mdb/PencasterMailCentre!" + PencasterMailCentre.class.getName();
PencasterMailCentre bean = (PencasterMailCentre) ctx.lookup(name);
bean.specialDelivery("Special Delivery");
Thread.sleep(1000); // TODO
return "done";
}