[JENKINS-76260] Set user experimental flag using system property #16836
Description
Some feature are currently protected behind `UserExperimentalFlag` so that can be activated by users when they want to.
However, this same protection makes running the ATH with those features difficult (requires to write a different setup for the tests).
It would be great to be able to activate the features using a system property for the entier instance so that we could run the ATH with that feature activated.
Originally reported by 
alecharp, imported from: Set user experimental flag using system property
- assignee: alecharp
- status: Closed
- priority: Minor
- component(s): core
- label(s): ux
- resolution: Fixed
- resolved: 2025-11-04T09:06:57+00:00
- votes: 0
- watchers: 1
- imported: 2025-11-24
Raw content of original issue
Some feature are currently protected behind `UserExperimentalFlag` so that can be activated by users when they want to. However, this same protection makes running the ATH with those features difficult (requires to write a different setup for the tests).
It would be great to be able to activate the features using a system property for the entier instance so that we could run the ATH with that feature activated.