IotConnectionCheck is append-only without @Immutable (every link failed with a 500)

Shipped

October 18, 2026 at 1:33 PM UTC

Author

Kamo

Commit

6c254d6

Hibernate 6.5 reads the database-generated checked_at back after the INSERT and then sets a lock mode on the entry; an immutable entry refuses it **************** Lock mode not supported), so ConnectionCredentialWriter .createLinked and appendCheck threw on commit. Append-only stays enforced by REVOKE UPDATE and by the class having no setters. Found by the SP14 load test (first live link of any connection).