public function unrecognizedCall($unrecognizedPath = '')
    {
        $this->start();

        if ($unrecognizedPath === '') {
            $message = t('Resource not specified');
        } else {
            $message = t(/*i18n: %1$s is a path, %2$s is an HTTP method*/'Unknown resource %1$s for %2$s method', $unrecognizedPath, $this->request->getMethod());
        }
        $result = $this->buildErrorResponse(
            $message,
            Response::HTTP_NOT_FOUND
        );

        return $this->finish($result);
    }