@Deployment
public static WebArchive createDeployment() {
    BeansDescriptor beansXml = Descriptors.create(BeansDescriptor.class);

    WebArchive war = ShrinkWrap.create(WebArchive.class)
            .addPackage("org.javaee7.jpa.locking.optimistic")
            .addAsResource("META-INF/persistence.xml")
            .addAsResource("META-INF/load.sql")
            .addAsWebInfResource(
                    new StringAsset(beansXml.createAlternatives()
                            .clazz(MovieBeanAlternative.class.getName()).up().exportAsString()),
                    beansXml.getDescriptorName());
    System.out.println(war.toString(true));
    return war;
}

@Test
public void testLockingOptimisticUpdateAndRead() throws Exception {
    resetCountDownLatches();
    List<Movie> movies = movieBean.listMovies();
    assertFalse(movies.isEmpty());

    final CountDownLatch testCountDownLatch = new CountDownLatch(1);

    executor.execute(new Runnable() {
        @Override
        public void run() {
            movieBean.updateMovie(3, "INCEPTION UR");
            testCountDownLatch.countDown();
        }
    });

    executor.execute(new Runnable() {
        @Override
        public void run() {
            movieBean.findMovie(3);
            MovieBeanAlternative.lockCountDownLatch.countDown();
        }
    });

    assertTrue(testCountDownLatch.await(10, TimeUnit.SECONDS));
    assertEquals("INCEPTION UR", movieBean.findMovie(3).getName());
}

@Test
public void testLockingOptimisticReadAndUpdate() throws Exception {
    resetCountDownLatches();
    List<Movie> movies = movieBean.listMovies();
    assertFalse(movies.isEmpty());

    final CountDownLatch testCountDownLatch = new CountDownLatch(1);

    executor.execute(new Runnable() {
        @Override
        public void run() {
            try {
                movieBean.readMovie(3);
            } catch (RuntimeException e) { // Should throw an javax.persistence.OptimisticLockException? Hibernate is throwing org.hibernate.OptimisticLockException. Investigate!
                testCountDownLatch.countDown();
            }
        }
    });

    executor.execute(new Runnable() {
        @Override
        public void run() {
            MovieBeanAlternative.lockCountDownLatch.countDown();
            movieBean.updateMovie(3, "INCEPTION RU");
            MovieBeanAlternative.readCountDownLatch.countDown();
        }
    });

    assertTrue(testCountDownLatch.await(10, TimeUnit.SECONDS));
    assertEquals("INCEPTION RU", movieBean.findMovie(3).getName());
}

@Test
public void testLockingOptimisticDelete() throws Exception {
    resetCountDownLatches();
    List<Movie> movies = movieBean.listMovies();
    assertFalse(movies.isEmpty());

    final CountDownLatch testCountDownLatch = new CountDownLatch(1);

    executor.execute(new Runnable() {
        @Override
        public void run() {
            try {
                movieBean.updateMovie(3, "INCEPTION");
            } catch (RuntimeException e) { // Should throw an javax.persistence.OptimisticLockException? The Exception is wrapped around an javax.ejb.EJBException
                testCountDownLatch.countDown();
            }
        }
    });

    executor.execute(new Runnable() {
        @Override
        public void run() {
            movieBean.deleteMovie(3);
            MovieBeanAlternative.lockCountDownLatch.countDown();
        }
    });

    assertTrue(testCountDownLatch.await(10, TimeUnit.SECONDS));
}