entityManager.persist not throwing ConstraintValidationException

While trying to persist an entity with:

• an id generated with strategy GenerationType.TABLE

• a field annotated with @javax.validation.constraints.NotNull

• a null value for that field

I was expecting that:

• the entityManager.persist() throws a javax.validation.ConstraintViolationException

• the transaction to be marked as rollback-only
  (Those expectations are based on jpa 2.0 specifications)

But the current behavior is:

• entityManager.persist() don't throw any exception

• transaction is not marked as rollback only

• later, the transaction.commit() throws a RollbackException

Remarks:

• If the entity have an id using the default id generation strategy (i.e. annotated only with @GeneratedValue @Id) everything works as expected.

• The attached project contains 2 tests : one successful for an entity with default id generation strategy and one failing for an entity with table genarated id startegy

• there is a related question on SO : http://stackoverflow.com/questions/14978291/hibernate-not-following-jpa-specifications-when-combined-with-bean-validation-ap