When my servlet tried to write a record, it encontered the following
exception:
javax.persistence.EntityNotFoundException: Could not retrieve entity
of kind MyEntity with key MyEntity(1318001)
even if I have check and ensured that the id 1318001 doesn't exist in
my datastore. It happened when my servlet commit the transation.
Here is my coding:
EntityManagerFactory emfInstance =
Persistence.createEntityManagerFactory("transactions-
optional");
EntityManager em = emfInstance.createEntityManager();
em.getTransaction().begin();
MyEntity ent = new MyEntity(....);
em.persist(ent);
log.info(ent.toString());
em.getTransaction().commit();
I can see my ent in the log, but it caused the exception in the commit
statement. Can somebody please help.
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