Lions - Base HTTP exception

HttpException.php

<?php

namespace Lions\Exception;

use Symfony\Component\HttpKernel\Exception\HttpException as BaseHttpException;

class HttpException extends BaseHttpException {

    protected $statusCode = 500;
    protected $exceptionType = 'Exception';

    function __construct($message = null , \Exception $previous = null, $headers = array(), $code = 0)
    {
        if ($message === null)
        {
            $message = $this->exceptionType;
        }

        parent::__construct($this->statusCode, $message, $previous, $headers, $code);
    }
}