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Name	Action
..
AccessDeniedHttpException.php	Edit
BadRequestHttpException.php	Edit
ConflictHttpException.php	Edit
GoneHttpException.php	Edit
HttpException.php	Edit
HttpExceptionInterface.php	Edit
LengthRequiredHttpException.php	Edit
MethodNotAllowedHttpException.php	Edit
NotAcceptableHttpException.php	Edit
NotFoundHttpException.php	Edit
PreconditionFailedHttpException.php	Edit
PreconditionRequiredHttpException.php	Edit
ServiceUnavailableHttpException.php	Edit
TooManyRequestsHttpException.php	Edit
UnauthorizedHttpException.php	Edit
UnprocessableEntityHttpException.php	Edit
UnsupportedMediaTypeHttpException.php	Edit

Editing: GoneHttpException.php

<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\HttpKernel\Exception; /** * @author Ben Ramsey <ben@benramsey.com> */ class GoneHttpException extends HttpException { /** * @param string $message The internal exception message * @param \Exception $previous The previous exception * @param int $code The internal exception code */ public function __construct($message = null, \Exception $previous = null, $code = 0) { parent::__construct(410, $message, $previous, array(), $code); } }