mouse.setName( "mickey" );
em.getTransaction().begin();
em.persist( as );
em.persist( mouse );
assertEquals( 1, em.createNamedQuery( "allMouse_1_0" ).getResultList().size() );
Lighter1 lighter = new Lighter1();
lighter.name = "main";
lighter.power = " 250 W";
em.persist( lighter );
em.flush();
em.remove( lighter );