class NotSupportFCMException implements Exception {} class NotLoadedFCMTokenException implements Exception {} class NotFoundStateToRefreshException implements Exception {} class NotFoundEmailDeliveryStateException implements Exception {} class NotFoundFirebaseRegistrationForDeviceException implements Exception {} class NotFoundFirebaseRegistrationCacheException implements Exception {} class NotFoundEmailStateException implements Exception {} class NotFoundNewReceiveEmailException implements Exception {} class EmailStateNoChangeException implements Exception {} class NotFoundFirebaseRegistrationCreatedException implements Exception {} class NotFoundFirebaseRegistrationUpdatedException implements Exception {} class NotFoundFirebaseRegistrationDestroyedException implements Exception {}