}
public void testIntegerId() {
ClassMetaData cmd = repo.getMetaData(Person.class, null, true);
try {
JPAFacadeHelper.toOpenJPAObjectId(cmd, new Person());
fail("Didn't fail!");
} catch (UserException re) {
// expected
}
Integer id = Integer.valueOf(1);
Person entity = new Person();
entity.setId(id);
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
em.persist(entity);
em.getTransaction().commit();
em.clear();
Person persistedEntity = em.find(Person.class, id);
StateManagerImpl smi = ((StateManagerImpl) ((PersistenceCapable) persistedEntity).pcGetStateManager());
Object oid = smi.getObjectId();
assertEquals(oid, JPAFacadeHelper.toOpenJPAObjectId(cmd, id));
}