[OPENJPA-2443] InvalidStateException while merging a new Entity with a GeneratedValue id

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.0, 2.4.0
• Fix Version/s: 2.3.0, 2.4.0
• Component/s: kernel
• Assignee: Richard G. Curtis
• Reporter: Richard G. Curtis
• Created: 22/Oct/13 21:28
• Updated: 06/Jun/15 14:25
• Resolved: 24/Oct/13 13:43

Description

This problem only happens if you have an Entity with a Generated id that also has the annotation @Basic(optional = false). If you create a new Entity and then try to persist it via EntityManager.merge(...) call, you'll get the following stack :

<openjpa-0.0.0-rnull fatal user error> org.apache.openjpa.persistence.InvalidStateException: The field "id" of instance "org.apache.openjpa.persistence.jdbc.auto.AutoIncrementEntity@99883308" contained a null value; the metadata for this field specifies that nulls are illegal.
at org.apache.openjpa.kernel.SingleFieldManager.preFlush(SingleFieldManager.java:567)
at org.apache.openjpa.kernel.SingleFieldManager.preFlush(SingleFieldManager.java:511)
at org.apache.openjpa.kernel.StateManagerImpl.preFlush(StateManagerImpl.java:3019)
at org.apache.openjpa.kernel.PNewState.beforeFlush(PNewState.java:44)
at org.apache.openjpa.kernel.StateManagerImpl.beforeFlush(StateManagerImpl.java:1035)
at org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:2141)
at org.apache.openjpa.kernel.BrokerImpl.flushSafe(BrokerImpl.java:2101)
at org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:1872)
at org.apache.openjpa.kernel.DelegatingBroker.flush(DelegatingBroker.java:1045)
at org.apache.openjpa.persistence.EntityManagerImpl.flush(EntityManagerImpl.java:663)