访问权限导致toString返回空BUG分享

 public static void main(String[] args) {
        Demo demo = new Demo("FunTester", "FunTester");

        output(JSON.toJSONString(demo));

        testOver();
    }

    static class Demo {

        String name;

        String value;

        public Demo(String name, String value) {
            this.name = name;
            this.value = value;
        }

    }

INFO-> 当前用户：fv，IP：10.60.192.21，工作目录：/Users/fv/Documents/workspace/fun/,系统编码格式:UTF-8,系统Mac OS X版本:10.15.7
INFO-> {}

Process finished with exit code 0