Github user tzulitai commented on the issue:
https://github.com/apache/flink/pull/3508
@aljoscha @StefanRRichter Rebased on master to resolve conflicts.
Also, the follow-up commits addresses the following:
1. Remove / deprecate the Java serialization shortcuts. We have some
connectors that use the deprecated shortcut method, but I think since changing
those will require some more involved migration work, I propose to fix those as
a separate JIRA / PR.
2. According to Stephan's suggestion, refine the current naming of the
operator state methods. `getOperatorState` is renamed to `getListState`, and
the new union state is named as `getUnionListState`.
Further question regarding deprecating Java serialization shortcuts: do we
then also have a cause to deprecate the `ListCheckpointed` interface, since
that itself is a shortcut also?
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