We should refactor the current implementation so that :

• Validators and processors are bound together, and know the annotation they are bound too.
• From that we can extract the annotation list, which therefore doesn't need to be maintained at the top of the annotation processor
• It would also be nice if each processor / validator had access to only its own bean holder scope, because in most case they don't need anything else. But a broader scope should be available for cases where you need to share stuff.