A local class captures List<String> events. Which operation is allowed while events remai…

A local class captures List<String> events. Which operation is allowed while events remains effectively final?

1. Call events.add("sent") without reassigning events.
2. Assign events = new ArrayList<>() after creating the local class.
3. Reassign events only inside an unreachable branch.
4. Increment a captured int with count++ without a holder.