HibernateJpaParametersParameterAccessor throws PersistenceException

[blue-hope]

Related to #2370.

When executing query, below code is run before create query.

HibernateJpaParametersParameterAccessor(Parameters<?, ?> parameters, Object[] values, EntityManager em) {
  super(parameters, values);

  Session session = em.unwrap(Session.class);
  this.typeHelper = session.getSessionFactory().getTypeHelper();
}

Does it properly work on non-transactional query?
As you can see, It uses invoke() to unwrap Session but it throws IllegalStateException when the query is non transaction.
This is because it uses ThreadLocal Internally to get EntityManager and the ThreadLocal bindResource() which set the entityManager is called only when use transaction.
How can I fix it(or is it can be fixed)?

[mp911de]

If you would like us to spend some time helping you to diagnose the problem, please spend some time describing it and, ideally, providing a minimal sample that reproduces the problem. We require more contextual details to find out how you're using JPA.

[blue-hope]

Ah, It occurs on spring 2.7.0, and upgrade it to 2.7.2 the error not occurs.