@Service
    public static class AsyncTransactionalTestBean {

        @Transactional
        public Collection<?> testTransToAsync() {
            System.out.println("testTransToAsync " + Thread.currentThread().getName());
            ((AsyncTransactionalTestBean) AopContext.currentProxy()).testAsyncToAsync();
            return null;
        }


        @Async
        public void testAsyncToAsync() {
            System.out.println("testAsyncToAsync " + Thread.currentThread().getName());
            ((AsyncTransactionalTestBean) AopContext.currentProxy()).testAsync();
        }

        @Async
        public void testAsync() {
            System.out.println("testAsync " + Thread.currentThread().getName());
        }
    }