@Test
  public void test() {

    doInJPA(
        entityManager -> {
          Post post = new Post();
          post.setId(1L);
          post.setTitle("High-Performance Java Persistence");
          entityManager.persist(post);
        });
    doInJPA(
        entityManager -> {
          Post post = entityManager.find(Post.class, 1L);
          LOGGER.info("Fetched post: {}", post);
          post.setScore(12);
        });
  }