两个对象引用同一个对象，序列化并反序列化后第二个对象的该引用为null

[xuehuazhang]

    //一个老师，有两个学生，两个学生住在同一个地方
    //对老师序列化，老师关联的第二个学生的地址反序列化的时候为null

    Teacher t = new Teacher();

    Address addr = new Address();
    addr.setAddrDetail("中国上海南京路");

    Student s1 = new Student();
    s1.setName("张三");
    s1.setAddr(addr);

    Student s2 = new Student();
    s2.setName("李四");
    s2.setAddr(addr);

    t.setStudentList(Arrays.asList(s1, s2));


    MessageData msg = new MessageData();
    msg.setData(t);

    //序列化
    String json = JSON.toJSONString(msg,SerializerFeature.WriteClassName);
     //@1 打印序列化的时候json串

    System.out.println(json);
    //反序列化
    MessageData data = JSON.parseObject(json,MessageData.class);
    Teacher  dt = (Teacher) data.getData();
    for(Student s:dt.getStudentList()){
        //@2 打印两个学生的地址，现象第一个地址不为空，其他都为空
        System.out.println(s.getAddr());
    }

输出内容
{"@type":"demo.MessageData","data":{"@type":"demo.Teacher","studentList":[{"addr":{"addrDetail":"中国上海南京路"},"name":"张三"},{"addr":{"$ref":"$.data.studentList[0].addr"},"name":"李四"}]}}

demo.Address@49fc609f

null

[wenshao]

bug fixed. it will include in 1.2.9 & 1.1.49.android.