Github user aljoscha commented on the issue:
https://github.com/apache/flink/pull/4530
I think the approach is OK, though I personally would have preferred to
make the instance variable protected and override `processWatermark()` to
minimise impact on `AbstractStreamOperator`, which now has an extra method
call. (though that will probably be inlined)
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
