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https://issues.apache.org/jira/browse/FLINK-16310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17323065#comment-17323065
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Flink Jira Bot commented on FLINK-16310:
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This issue is assigned but has not received an update in 7 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> Javadoc of AppendingState.get() contradicts with behavior of
> UserFacingListState
> --------------------------------------------------------------------------------
>
> Key: FLINK-16310
> URL: https://issues.apache.org/jira/browse/FLINK-16310
> Project: Flink
> Issue Type: Improvement
> Components: Documentation, Runtime / State Backends
> Affects Versions: 1.6.4, 1.7.2, 1.8.3, 1.9.2, 1.10.0
> Reporter: Tzu-Li (Gordon) Tai
> Assignee: Tzu-Li (Gordon) Tai
> Priority: Major
> Labels: stale-assigned
>
> The {{get()}} method on the user-facing state handle interface
> {{AppendingState}} states that:
> {code}
> @return The operator state value corresponding to the current input or NULL
> if the state is empty.
> {code}
> This behavior, is not true for the user-facing list state handles, as the
> behavior has always been that if the list state does not have elements, an
> empty list is returned (see FLINK-4307 / {{UserFacingListState}}).
> The fix would be to only mention the null-returning behavior on the internal
> list state interface, i.e. {{InternalListState}}, and fix the Javadoc for
> {{AppendingState}}.
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