waitForService(FooService.class.getName(), null, 5000);
CheckService check = (CheckService) getServiceObject(CheckService.class.getName(), null);
assertNotNull(check);
check.check();
// CheckService not available
assertNull(getServiceReference(CheckService.class.getName()));
assertNotNull(getServiceReference(FooService.class.getName()));
FooService fs = (FooService) getServiceObject(FooService.class.getName(), null);