Expanded class hierarchy of PreconditionRequiredHttpException

class \Symfony\Component\HttpKernel\Exception\HttpException extends \Symfony\Component\HttpKernel\Exception\RuntimeException implements HttpExceptionInterface
- class \Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException
- class \Symfony\Component\HttpKernel\Exception\BadRequestHttpException
- class \Symfony\Component\HttpKernel\Exception\ConflictHttpException
- class \Symfony\Component\HttpKernel\Exception\GoneHttpException
- class \Symfony\Component\HttpKernel\Exception\LengthRequiredHttpException
- class \Symfony\Component\HttpKernel\Exception\MethodNotAllowedHttpException
- class \Symfony\Component\HttpKernel\Exception\NotAcceptableHttpException
- class \Symfony\Component\HttpKernel\Exception\NotFoundHttpException
- class \Symfony\Component\HttpKernel\Exception\PreconditionFailedHttpException
- class \Symfony\Component\HttpKernel\Exception\PreconditionRequiredHttpException
- class \Symfony\Component\HttpKernel\Exception\ServiceUnavailableHttpException
- class \Symfony\Component\HttpKernel\Exception\TooManyRequestsHttpException
- class \Symfony\Component\HttpKernel\Exception\UnauthorizedHttpException
- class \Symfony\Component\HttpKernel\Exception\UnsupportedMediaTypeHttpException