@Test
	public void sortingByEmptyNestedFieldsShouldReturnAllProductsPlainJpaShortend() {

		entityManager.persist(new Product("FUBAR", null));

		CriteriaBuilder cb = entityManager.getCriteriaBuilder();
		CriteriaQuery<Product> query = cb.createQuery(Product.class);
		Root<Product> root = query.from(Product.class);
		query.select(root)
				.orderBy(cb.asc(root.get("vendorInfo").get("vendor").get("name")));


		List<Product> products = entityManager.createQuery(query).getResultList();
		assertEquals("Repository should return demo product", 1, products.size());
	}

	@Test
	public void sortingShouldReturnAllProductsPlainJpa() {

		VendorAddress address = entityManager.merge(new VendorAddress("FooCity", "12345", "FooStreet", "1"));
		Vendor vendor = entityManager.merge(new Vendor("ACME", address));
		entityManager.merge(new Product("FUBAR", new Product.VendorInfo(vendor, "Best buddy")));

		CriteriaBuilder cb = entityManager.getCriteriaBuilder();
		CriteriaQuery<Product> query = cb.createQuery(Product.class);
		Root<Product> root = query.from(Product.class);
		query.select(root)
				.orderBy(cb.asc(root.get("vendorInfo").get("vendor").get("address").get("street")));


		List<Product> products = entityManager.createQuery(query).getResultList();
		assertEquals("Repository should return demo product", 1, products.size());
	}