Stephan Ewen created FLINK-4307:
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Summary: Broken user-facing API for ListState
Key: FLINK-4307
URL: https://issues.apache.org/jira/browse/FLINK-4307
Project: Flink
Issue Type: Bug
Components: Streaming
Reporter: Stephan Ewen
Assignee: Stephan Ewen
Priority: Blocker
Fix For: 1.1.0
The user-facing {{ListState}} is supposed to return an empty list when no
element is contained in the state.
A previous change altered that behavior to make it in the runtime classes
accessible whether a ListState is empty.
To not break the user-facing API, we need to restore the behavior for ListState
exposed to the users via the {{RuntimeContext}}.
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