Github user xccui commented on the issue:
https://github.com/apache/flink/pull/4530
Thanks for the comment, @aljoscha. IMO, making the `timeServiceManager`
protected indeed will minimise the impact on `AbstractStreamOperator`, while
that may introduce duplicated codes in the subclasses. We make some trade-offs
here.
---
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 infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
