public void testContainerReused() throws Exception {
    URL url = ClassLoader.getSystemResource(resourceName);
    Employee testObject = (Employee) xmlUnmarshaller.unmarshal(url);

    assertEquals(
        "This mapping's container was not reused.",
        Stack.class,
        testObject.getEmailAddresses().getClass());
  }
  public Object getControlObject() {
    Employee emp = new Employee();
    emp.setID(123);

    EmailAddress email1 = new EmailAddress();
    email1.setUserID("jondoe");
    email1.setDomain("test.com");
    EmailAddress email2 = new EmailAddress();
    email2.setUserID("elfkillah1984");
    email2.setDomain("everquest.com");

    Vector emails = new Stack();
    emails.add(email1);
    emails.add(email2);

    emp.setEmailAddresses(emails);

    return emp;
  }