<dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.5</version>
        </dependency>

String json;
Gson g = new Gson();
TokenDataDto tokenDataDto = g.fromJson(json, TokenDataDto.class);

String realDataJson = "";
String value;
JsonParser jp = new JsonParser();
JsonObject jo;
jo = jp.parse(realDataJson).getAsJsonObject();
value = jo.get("value").getAsString();

Gson gson = new Gson();
        if(StringUtils.isNoneBlank(orgDataJson)){
            List<OrgDto> orgList =gson.fromJson(orgDataJson, new TypeToken<List<OrgDto>>() {}.getType());
            if(!CollectionUtils.isEmpty(orgList))return orgList;
        }