While playing around with Spring roo I see this error while running the integration tests via
perform tests
roo org.springframework.orm.jpa.JpaOptimisticLockingFailureException: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction
The problem was here, that my database table which stored the specific entities had a version column but only NULL values inside. I have replaced the NULLs with an numeric value and then it worked.
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