Selecting all jpa entities as selection query

allEntities.java

@PersistenceContext
    EntityManager em;

protected Class<T> type;


 public List<T> allEntries() {
        CriteriaBuilder cb = em.getCriteriaBuilder();
        CriteriaQuery<T> cq = cb.createQuery(type);
        Root<T> rootEntry = cq.from(type);
        CriteriaQuery<T> all = cq.select(rootEntry);
        TypedQuery<T> allQuery = em.createQuery(all);
        return allQuery.getResultList();
    }