Session/EntityManager is closed when using infinispan and attempting to update the realm

[alice-wondered]

Before reporting an issue

• I have searched existing issues
• I have reproduced the issue with the latest nightly release

Area

admin/ui

Describe the bug

This bug most readily presents itself when attempting to use the session revocation feature in the admin UI.

Only happens when using infinispan, any request to update the realm fails.

Version

Nightly

Expected behavior

The realm should be able to update and the hibernate entity manager should not be closed for the current session

Actual behavior

Error returns, request fails, realm does not update, error message says that the entity manager is closed

How to Reproduce?

This bug most readily presents itself when attempting to use the session revocation feature in the admin UI.

Run keycloak using legacy store and infinispan.
Login to the admin console, navigate to sessions. In the top right corner click the dropdown and select "Revocation". Select "Set To Now". The request will fail. This is also seen in GHA. In the session_spec for UI tests in cypress there is a test that does exactly this and fails due to this bug.

While the revocation feature is no longer needed according to other discussion threads, this bug is actually caused by behavior in an unrelated class when updating a realm and most likely affects other areas of the UI.

Anything else?

I have diagnosed this issue and will be submitting a PR to resolve. It is caused by persistence of a cached realm model on OAuth2DeviceConfig in infinispan, causing a reference to an old session and entity manager instead of the most up to date

[ssilvert]

Good PRs are always welcome!

This doesn't sound like a UI issue, so I'm moving it to the core team.