Just ran into this while attempting to update an application from using javax to jakarta. The Repositories.generator file at a minimum is adding an annotation that does not exist in the jakarta version of the annotations. There also doesn't appear to be a way to disable generating this annotation.

Based on my current understanding I'm pretty sure the jakarta.annotation.concurrent.Immutable annotation does not exist in newer versions of the API. I think the entire jakarta.annotation.concurrent package was removed from the official specification.

At a minimum I would expect the same rules as apply to the @Generated annotation to apply here, but the generator file seems to be missing the logic to make that work.