DbEntity e1 = new DbEntity("e1");
DbAttribute nonPk = new DbAttribute("nonPk", Types.INTEGER, e1);
e1.addAttribute(nonPk);
map.addDbEntity(e1);
// DbLoader is so ugly and hard to test..
Field dbEntityList = DbLoader.class.getDeclaredField("dbEntityList");
dbEntityList.setAccessible(true);
List<DbEntity> entities = (List<DbEntity>) dbEntityList.get(loader1);