@Override
  public JsonObjectBuilder getJsonObjectBuilder() {
    return super.getJsonObjectBuilder()
      .add("address", this.address)
      .add("port", this.port)
      .add("protocol", this.protocol)
      .add("candidateType", this.candidateType)
      .add("url", this.url);
  }
RTCIceCandidateStats, with attributes ip, port, protocol, candidateType, address, url
KITE-Framework/src/main/java/org/webrtc/kite/stats/rtc/RTCIceCandidateStats.java