@Test
  public void testInvocation() {

    List<String> expected = new ArrayList<String>();
    expected.add(0 + Interceptor1.class.getSimpleName());
    expected.add(0 + Interceptor2.class.getSimpleName());
    expected.add(1 + Interceptor1.class.getSimpleName());
    expected.add(1 + Interceptor2.class.getSimpleName());
    expected.add(2 + Interceptor1.class.getSimpleName());

    ActionSequence.reset();
    bean.ping();
    assertEquals(expected, ActionSequence.getSequenceData());
  }