Как отпарсить ответ от сервера с помощью json?

[nevender]

Дано: создаю бота для Telegram. Отправляю запрос через http, получаю ответ в виде кучи текста. Хочу вытащить нужное: имя пользователя и текст.
Вопрос: в чем ошибка? Как я понимаю, сейчас программа вроде_как_должна_вытаскивать "username" и "text"

Код:

package com.TelegramBot;

import org.json.JSONArray;
import org.json.JSONObject;

import javax.net.ssl.HttpsURLConnection;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;


public class TelegramBot {
    public String URL = "https://api.telegram.org/bot1<TokenMyBot>/";

    public void getMe() {

        try {
            StringBuilder URL_getMe = new StringBuilder();
            URL_getMe.append(URL).append("getMe");
            URL url = null;
            url = new URL(URL_getMe.toString());
            url.openConnection();
            HttpsURLConnection con = (HttpsURLConnection) url.openConnection();
            print_content(con);
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    public void getUpdates() {

        try {
            StringBuilder URL_getMe = new StringBuilder();
            URL_getMe.append(URL).append("getUpdates");
            URL url = new URL(URL_getMe.toString());
            url.openConnection();
            HttpsURLConnection con = (HttpsURLConnection) url.openConnection();
            print_content(con);
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    private void print_content(HttpsURLConnection con) {
        if (con != null) {
            try {
                System.out.println("****** Content of the URL ********");
                BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream()));
                String input;
                while ((input = br.readLine()) != null) {

                    System.out.println(input);

                    JSONObject rootObj = new JSONObject(input);
                    JSONObject obj = rootObj
                            .getJSONObject("username")
                            .getJSONObject("text");
                    System.out.println(rootObj);

                }
                System.out.println();
                br.close();

            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        TelegramBot main = new TelegramBot();
        //main.getMe();
        main.getUpdates();


    }
}

Вывод если без объектов json:

****** Content of the URL ********
{"ok":true,"result":[{"update_id":123804251,
"message":{"message_id":44,"from":{"id":186320203,"first_name":"Alexander","last_name":"Ivanov","username":"Nevender"},"chat":{"id":186320203,"first_name":"Alexander","last_name":"Ivanov","username":"Nevender","type":"private"},"date":1461865375,"text":"iriskin is a nice man"}}]}

Вывод с объектами json:

****** Content of the URL ********
{"ok":true,"result":[{"update_id":123804251,
Exception in thread "main" org.json.JSONException: A JSONObject text must end with '}' at 45 [character 46 line 1]
	at org.json.JSONTokener.syntaxError(JSONTokener.java:433)
	at org.json.JSONObject.<init>(JSONObject.java:194)
	at org.json.JSONTokener.nextValue(JSONTokener.java:364)
	at org.json.JSONArray.<init>(JSONArray.java:114)
	at org.json.JSONTokener.nextValue(JSONTokener.java:367)
	at org.json.JSONObject.<init>(JSONObject.java:208)
	at org.json.JSONObject.<init>(JSONObject.java:312)
	at com.TelegramBot.TelegramBot.print_content(TelegramBot.java:62)
	at com.TelegramBot.TelegramBot.getUpdates(TelegramBot.java:43)
	at com.TelegramBot.TelegramBot.main(TelegramBot.java:81)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)

Process finished with exit code 1