String userStr = "{\"name\":\"asdfad\",\"ss\":\"\"}";
 User user = JsonUtil.jsonToJavaObject(userStr, User.class);

反序列化时，出现com.alibaba.fastjson.JSONException: not close json text, token : }
版本号：1.2.54

class User{
    private String name;
    private List<Phone> ss;
}

class Phone{
    private String name;
    private String id;

}