CriteriaBuilder criteriaBuilder = em.getCriteriaBuilder();
CriteriaQuery<Manufacturer> criteriaQuery = criteriaBuilder.createQuery(Manufacturer.class);
criteriaQuery.distinct(true);
Root<Manufacturer> mainRoot = criteriaQuery.from(Manufacturer.class);
Join joinProducts = mainRoot.join("products", JoinType.INNER);
Path<NickName> nickNames = joinProducts.get("nickNames");

Predicate noEmptyList = criteriaBuilder.isEmpty(nickNames.get("justList"));
// or if I use nickNames.get("justList").as(List.class) is the same result

criteriaQuery.where(criteriaBuilder.and(noEmptyList));

TypedQuery<Manufacturer> query = em.createQuery(criteriaQuery);
query.getResultList().size()// check the screen to see the result

SELECT DISTINCT
    t2.ID, t2.NAME
FROM
    NICKNAME t0,
    MANUFACTURER t2,
    PRODUCT t1
WHERE
    ((SELECT 
            COUNT(t3.ID)
        FROM
            PRODUCT_NICKNAME t6,
            MANUFACTURER_PRODUCT t5,
            NICKNAME_DUMMY_LIST t4,
            DUMMYENTITY t3
        WHERE
            (((t4.id = t0.ID) AND (t3.ID = t4.dummy_id)) AND (((t5.Manufacturer_ID = t2.ID) AND (t1.ID = t5.products_ID)) AND ((t6.Product_ID = t1.ID) AND (t0.ID = t6.nickNames_ID))))) = ?)