<form method="POST">
    <h3>Editing: TestSessionListener.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier &lt;fabien@symfony.com&gt;
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpKernel\EventListener;

use Psr\Container\ContainerInterface;
use Symfony\Component\HttpFoundation\Session\SessionInterface;

trigger_deprecation('symfony/http-kernel', '5.4', '&quot;%s&quot; is deprecated, use &quot;%s&quot; instead.', TestSessionListener::class, SessionListener::class);

/**
 * Sets the session in the request.
 *
 * @author Fabien Potencier &lt;fabien@symfony.com&gt;
 *
 * @final
 *
 * @deprecated since Symfony 5.4, use SessionListener instead
 */
class TestSessionListener extends AbstractTestSessionListener
{
    private $container;

    public function __construct(ContainerInterface $container, array $sessionOptions = [])
    {
        $this-&gt;container = $container;
        parent::__construct($sessionOptions);
    }

    protected function getSession(): ?SessionInterface
    {
        if ($this-&gt;container-&gt;has('session')) {
            return $this-&gt;container-&gt;get('session');
        }

        return null;
    }
}
</textarea><br>
    <input type="submit" value="Save">
</form>