Symfony version(s) affected

6.3.0

Description

We get in our pipeline the following error:

Cannot assign null to property Symfony\Component\Messenger\EventListener\StopWorkerOnSignalsListener::$signals of type array

It seems like when SIGTERM is not defined it assigns null to the typed array property.

How to reproduce

• Remove somehow the SIGTERM constant (Don't having installed php extension)
• Construct StopWorkerOnSignalsListener
• It will run into that exception

Possible Solution

Check for that constant and throw error when not existing

Additional Context

No response