PHPUnit; API Platform v. 3; "Error: Xdebug has detected a possible infinite loop" - phpunit

Question

I upgraded my API Platform project from v. 2.7 to v. 3.
Using the version 2.7 I was able to run my unit tests without problems. But now after upgrading to version 3, I receive the following error:
Error : Xdebug has detected a possible infinite loop, and aborted your script with a stack depth of '256' frames
Console output:
/PhpstormProjects/Members/lloyd-members-api/vendor/symfony/dependency-injection/Compiler/ResolveNoPreloadPass.php:81
/PhpstormProjects/Members/lloyd-members-api/vendor/symfony/dependency-injection/Compiler/AbstractRecursivePass.php:91
/PhpstormProjects/Members/lloyd-members-api/vendor/symfony/dependency-injection/Compiler/ResolveNoPreloadPass.php:92
/PhpstormProjects/Members/lloyd-members-api/vendor/symfony/dependency-injection/Compiler/ResolveNoPreloadPass.php:40
/PhpstormProjects/Members/lloyd-members-api/vendor/symfony/dependency-injection/Compiler/Compiler.php:73
/PhpstormProjects/Members/lloyd-members-api/vendor/symfony/dependency-injection/ContainerBuilder.php:716
/PhpstormProjects/Members/lloyd-members-api/vendor/symfony/http-kernel/Kernel.php:538
PhpstormProjects/Members/lloyd-members-api/vendor/symfony/http-kernel/Kernel.php:767
/PhpstormProjects/Members/lloyd-members-api/vendor/symfony/http-kernel/Kernel.php:128
/PhpstormProjects/Members/lloyd-members-api/vendor/symfony/framework-bundle/Test/KernelTestCase.php:72
/PhpstormProjects/Members/lloyd-members-api/vendor/api-platform/core/src/Symfony/Bundle/Test/ApiTestCase.php:49
/PhpstormProjects/Members/lloyd-members-api/tests/EasyTest.php:16
I simplified the test to the minimum:
<?php
namespace App\Tests;
use ApiPlatform\Symfony\Bundle\Test\ApiTestCase;
class EasyTest extends ApiTestCase
{
public function testSomething(): void
{
$this->assertTrue(true);
}
public function testProblem(): void
{
self::createClient();
$this->assertTrue(true);
}
}
testSomething() runs as it should.
testProblem() results in the error.
This is my composer.json
{
"type": "project",
"license": "proprietary",
"minimum-stability": "stable",
"prefer-stable": true,
"require": {
"php": ">=8.1",
"ext-ctype": "*",
"ext-curl": "*",
"ext-exif": "*",
"ext-gd": "*",
"ext-iconv": "*",
"api-platform/core": "^3.0",
"composer/package-versions-deprecated": "1.11.99.4",
"doctrine/annotations": "^1.0",
"doctrine/doctrine-bundle": "^2.7",
"doctrine/doctrine-migrations-bundle": "^3.2",
"doctrine/orm": "^2.13",
"imagine/imagine": "^1.3",
"jonasarts/phpqrcode-bundle": "^6.0",
"lexik/jwt-authentication-bundle": "^2.15",
"nelmio/cors-bundle": "^2.2",
"phpdocumentor/reflection-docblock": "^5.3",
"symfony-bundles/json-request-bundle": "^4.0",
"symfony/apache-pack": "^1.0",
"symfony/asset": "6.1.*",
"symfony/console": "6.1.*",
"symfony/dotenv": "6.1.*",
"symfony/expression-language": "6.1.*",
"symfony/flex": "^2",
"symfony/form": "6.1.*",
"symfony/framework-bundle": "6.1.*",
"symfony/http-client": "6.1.*",
"symfony/mailer": "6.1.*",
"symfony/monolog-bundle": "^3.7",
"symfony/property-access": "6.1.*",
"symfony/property-info": "6.1.*",
"symfony/proxy-manager-bridge": "6.1.*",
"symfony/requirements-checker": "^2.0",
"symfony/runtime": "6.1.*",
"symfony/security-bundle": "6.1.*",
"symfony/serializer": "6.1.*",
"symfony/twig-bundle": "6.1.*",
"symfony/uid": "6.1.*",
"symfony/validator": "6.1.*",
"symfony/yaml": "6.1.*",
"twig/cssinliner-extra": "^3.3",
"twig/extra-bundle": "^3.3",
"twig/twig": "^2.12|^3.0",
"vich/uploader-bundle": "^1.19"
},
"config": {
"optimize-autoloader": true,
"preferred-install": {
"*": "dist"
},
"sort-packages": true,
"allow-plugins": {
"composer/package-versions-deprecated": true,
"symfony/flex": true,
"symfony/runtime": true
}
},
"autoload": {
"psr-4": {
"App\\": "src/"
}
},
"autoload-dev": {
"psr-4": {
"App\\Tests\\": "tests/"
}
},
"replace": {
"symfony/polyfill-ctype": "*",
"symfony/polyfill-iconv": "*",
"symfony/polyfill-php72": "*",
"symfony/polyfill-php73": "*",
"symfony/polyfill-php74": "*",
"symfony/polyfill-php80": "*",
"symfony/polyfill-php81": "*"
},
"scripts": {
"auto-scripts": {
"cache:clear": "symfony-cmd",
"assets:install %PUBLIC_DIR%": "symfony-cmd",
"requirements-checker": "script"
},
"post-install-cmd": [
"#auto-scripts"
],
"post-update-cmd": [
"#auto-scripts"
]
},
"conflict": {
"symfony/symfony": "*"
},
"extra": {
"symfony": {
"allow-contrib": false,
"require": "6.1.*"
}
},
"require-dev": {
"hautelook/alice-bundle": "^2.10",
"justinrainbow/json-schema": "^5.2",
"phpstan/phpstan": "^1.4",
"phpunit/phpunit": "^9.5",
"rector/rector": "^0.12.21",
"roave/security-advisories": "dev-latest",
"symfony/browser-kit": "6.1.*",
"symfony/css-selector": "6.1.*",
"symfony/debug-bundle": "6.1.*",
"symfony/maker-bundle": "^1.36",
"symfony/phpunit-bridge": "^6.1",
"symfony/stopwatch": "6.1.*",
"symfony/var-dumper": "6.1.*",
"symfony/web-profiler-bundle": "6.1.*"
}
}
Composer is up to date (composer up).
Composer recipes are all up to date.
Can't find the problem. Removed vendor folder. Same problem.
I can run the tests with the following flag:
-dxdebug.mode=debug
In this case everything works fine.
Thank you!