Github user shixiaogang commented on the issue:
https://github.com/apache/flink/pull/3380
I like the idea of find some more "specific" exceptions. Flink can define
some specific Exceptions like `StateAccessException`. That may help better
understand the code.
I am also thinking that it's better not to put any exception in the
signature of user-facing interfaces like `State`. All exceptions thrown by
these methods are `RuntimeException` which are caught and handled by Flink.
It's because these methods provided by Flink are supposed to work properly and
do not throw any exception. Actually, users can do few things even if they can
catch the exceptions.
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