Symfony Listener gone missing after minor changes in Controller

Question

I am encountering some weir behaviour with Symfony listener. I have a working configuration, but when I change or add something to the controller, Expected to find class "App\EventListener\AuthenticationSuccessListener" shows up. The change could be only something inside route path string. All code is here. Remove cache and server restart doesn't help.

Listener

namespace AppBundle\EventListener;

use Lexik\Bundle\JWTAuthenticationBundle\Event\AuthenticationSuccessEvent;
use Lexik\Bundle\JWTAuthenticationBundle\Event\AuthenticationFailureEvent;
use Lexik\Bundle\JWTAuthenticationBundle\Response\JWTAuthenticationFailureResponse;
use Symfony\Component\Serializer\SerializerInterface;

class AuthenticationListener
{
    /**
     * @var SerializerInterface
     */
    private $serializer;

    public function __construct(SerializerInterface $serializer)
    {
        $this->serializer = $serializer;
    }

    /**
     * @param AuthenticationSuccessEvent $event
     */
    public function onAuthenticationSuccessResponse(AuthenticationSuccessEvent $event)
    {

        $event->setData([
            'user' => $this->serializer->normalize($event->getUser(), null, ['groups' => ['basic']]),
            'token' => $event->getData()['token'],
        ]);

    }

}

services.yaml

# This file is the entry point to configure your own services.
# Files in the packages/ subdirectory configure your dependencies.

# Put parameters here that don't need to change on each machine where the app is deployed
# https://symfony.com/doc/current/best_practices/configuration.html#application-related-configuration
parameters:

services:
    app.event.authentication_success_response:
        class: AppBundle\EventListener\AuthenticationListener
        tags:
            - { name: kernel.event_listener, event: lexik_jwt_authentication.on_authentication_success, method: onAuthenticationSuccessResponse }
    # default configuration for services in *this* file
    _defaults:
        autowire: true      # Automatically injects dependencies in your services.
        autoconfigure: true # Automatically registers your services as commands, event subscribers, etc.

    # makes classes in src/ available to be used as services
    # this creates a service per class whose id is the fully-qualified class name
    App\:
        resource: '../src/*'
        exclude: '../src/{DependencyInjection,Entity,Migrations,Tests,Kernel.php}'

    # controllers are imported separately to make sure services can be injected
    # as action arguments even if you don't extend any base controller class
    App\Controller\:
        resource: '../src/Controller'
        tags: ['controller.service_arguments']

Controller

<?php

namespace App\Controller;

use App\Entity\User;
use Doctrine\ORM\EntityManager;
use Doctrine\ORM\EntityManagerInterface;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\IsGranted;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Component\Serializer\SerializerInterface;

class ApiUserController extends AbstractController
{
    /**
     * @Route("/api/verify_token", methods="POST", name="api_verify_token")
     * @IsGranted("ROLE_USER")
     */
    public function verifyToken(User $user = null){
        return new JsonResponse([], 200);
    }

}

Answer 1

Solved by @Jakumi answer. The error was caused by namespace AppBundle\EventListener. After the change to App\EventListener error disappear.