public void testPersistTechnology() { Technology tech1 = new Technology(); tech1.setDescription("some description"); tech1.setName("ejb"); manager.getTransaction().begin(); manager.persist(tech1); manager.getTransaction().commit(); manager.getTransaction().begin(); manager.clear(); manager.getTransaction().commit(); manager.getTransaction().begin(); Technology tech = manager.find(Technology.class, "ejb"); assertEquals("some description", tech.getDescription()); manager.getTransaction().commit(); }