vendor/symfony/messenger/EventListener/AddErrorDetailsStampListener.php line 20
<?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\Messenger\EventListener;use Symfony\Component\EventDispatcher\EventSubscriberInterface;use Symfony\Component\Messenger\Event\WorkerMessageFailedEvent;use Symfony\Component\Messenger\Stamp\ErrorDetailsStamp;final class AddErrorDetailsStampListener implements EventSubscriberInterface{public function onMessageFailed(WorkerMessageFailedEvent $event): void{$stamp = ErrorDetailsStamp::create($event->getThrowable());$previousStamp = $event->getEnvelope()->last(ErrorDetailsStamp::class);// Do not append duplicate informationif (null === $previousStamp || !$previousStamp->equals($stamp)) {$event->addStamps($stamp);}}public static function getSubscribedEvents(): array{return [// must have higher priority than SendFailedMessageForRetryListenerWorkerMessageFailedEvent::class => ['onMessageFailed', 200],];}}