RelationToRelationMapInstance.class);
assertEquals(RelationRelationMapTableFieldStrategy.class,
cm.getFieldMapping("map").getStrategy().getClass());
RelationToRelationMapInstance o = new RelationToRelationMapInstance();
AllFieldTypes key = new AllFieldTypes();
AllFieldTypes val = new AllFieldTypes();
o.getMap().put(key, val);
em.getTransaction().begin();
em.persist(o);
em.getTransaction().commit();
em.close();