### Question:
ObjectFactory { public CallbackHeader createCallbackHeader() { return new CallbackHeader(); } ObjectFactory(); RequestHeader createRequestHeader(); SDNCAdapterResponse createSDNCAdapterResponse(); SDNCAdapterCallbackRequest createSDNCAdapterCallbackRequest(); CallbackHeader createCallbackHeader(); SDNCAdapterRequest createSDNCAdapterRequest();  }### Answer:
@Test public void testCreateCallbackHeader() { assertEquals(CallbackHeader.class.getName(), objectFactory.createCallbackHeader().getClass().getName()); }