Till Rohrmann created FLINK-18406:
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Summary: Annotate DualKeyLinkedMap with @Nullable annotation
Key: FLINK-18406
URL: https://issues.apache.org/jira/browse/FLINK-18406
Project: Flink
Issue Type: Improvement
Components: Runtime / Coordination
Affects Versions: 1.11.0, 1.12.0
Reporter: Till Rohrmann
Assignee: Till Rohrmann
Fix For: 1.12.0
In order to avoid wrong usage of {{DualKeyLinkedMap}} I think we should
annotate those methods which can return a {{null}} value. That way, the IDE can
help highlighting were we access values without proper null checks.
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