| HttpExceptionInterface | HttpExceptionInterface |
| KleinExceptionInterface | KleinExceptionInterface |
| DispatchHaltedException | DispatchHaltedException |
| DuplicateServiceException | DuplicateServiceException |
| HttpException | HttpException |
| LockedResponseException | LockedResponseException |
| RegularExpressionCompilationException | RegularExpressionCompilationException |
| ResponseAlreadySentException | ResponseAlreadySentException |
| RoutePathCompilationException | RoutePathCompilationException |
| UnhandledException | UnhandledException |
| UnknownServiceException | UnknownServiceException |
| ValidationException | ValidationException |