Jubin Soni created FLINK-41502:
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Summary: Add unit tests for LinkedOptionalMapSerializer
Key: FLINK-41502
URL: https://issues.apache.org/jira/browse/FLINK-41502
Project: Flink
Issue Type: Technical Debt
Components: API / Type Serialization System
Affects Versions: 2.5.0
Reporter: Jubin Soni
LinkedOptionalMapSerializer writes the snapshot format used by
PojoSerializerSnapshotData and KryoSerializerSnapshotData, so it is part of
savepoint compatibility, but has no direct tests. Cover a round trip with
present, absent-key and absent-value entries (insertion order and
absentKeysOrValues), an empty map, length framing (a key reader that consumes
fewer bytes than were written still reads later entries), and the
corrupted-header IllegalStateException. No production change. Searched JIRA and
GitHub on 2026-11-14: no existing ticket or PR.
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