BUG: Repository Proxy dependency injection failure `call createQueryForType() on null`

[Jan3k3y]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

After updating Neos Flow to versions 8.3.13 and higher, a critical dependency injection failure occurs in extended repository classes during proxy class initialization.

Error Message:

Fatal error: Call to a member function createQueryForType() on null
in /var/www/html/Packages/Framework/Neos.Flow/Classes/Persistence/Repository.php:137
Stack Trace Pattern:

Neos\Flow\Persistence\Repository::createQuery()
Neos\Flow\Persistence\Repository::__call("Flow_Aop_Proxy_buildMethodsAndAdvicesArray", array)
[CustomRepository]::Flow_Aop_Proxy_buildMethodsAndAdvicesArray()
[CustomRepository]::__construct()
The @flow\Inject annotated $persistenceManager property remains null, causing method calls on it to fail.

Expected Behavior

• Custom repositories extending core repository classes should initialize properly
• Dependency injection should work correctly for PersistenceManagerInterface and other injected dependencies
• Applications should function normally after Flow framework updates
• No breaking changes in dependency injection behavior between minor versions

Steps To Reproduce

• Create a custom repository extending a core repository:

<?php
namespace Vendor\Package\Repository;

use Neos\Flow\Annotations as Flow;
use Neos\Flow\Persistence\PersistenceManagerInterface;

/**
 * @Flow\Scope("singleton")
 */
class CustomNodeDataRepository extends \Neos\ContentRepository\Domain\Repository\NodeDataRepository
{
    /**
     * @Flow\Inject
     * @var PersistenceManagerInterface
     */
    protected $persistenceManager;
    
    public function customMethod(): void
    {
        // Custom implementation
    }
}

• Inject the custom repository in a controller or service:

/**
 * @Flow\Inject
 * @var \Vendor\Package\Repository\CustomNodeDataRepository
 */
protected $customRepository;

• Update Neos Flow from 8.3.12 to 8.3.13+
• Clear all caches: ./flow flow:cache:flush --force
• Access any page/endpoint that triggers the custom repository usage

Result: Fatal error occurs during repository instantiation.

Environment

Working: Neos Flow 8.3.12 and earlier
Broken: Neos Flow 8.3.13 through 8.3.28 (current)

Anything else?

• Slack-Thread