public void testStart() throws Exception {
ServiceReference<CRUD> serviceReference = domain.getServiceReference(CRUD.class, "CRUDServiceComponent");
assertNotNull(serviceReference);
CRUD service = serviceReference.getService();
String id = service.create("ABC");
Object result = service.retrieve(id);
assertEquals("ABC", result);
service.update(id, "EFG");
result = service.retrieve(id);
assertEquals("EFG", result);