title: Telegram api, can't get phone number
body: <p>In the code I write some comments. 
  I need to get the phone number of the user. Api telegraph allows you to do this using <code>keyboardButton.setText("Share your number&gt;").setRequestContact(true);</code> user receives a message and he sends a contact with one click. After that I try to display contact in the console <code>System.out.println(update.getMessage().getContact());</code>, but I always get <code>null</code></p>
  
  <pre><code>public void onUpdateReceived(Update update) {
  
  if (update.hasMessage() &amp;&amp; update.getMessage().hasText()) {
      long chat_id = update.getMessage().getChatId();
  
      if (update.getMessage().getText().equals("/start")) {
  
          SendMessage sendMessage = new SendMessage()
                  .setChatId(chat_id)
                  .setText("You send /start");
  
          // create keyboard
          ReplyKeyboardMarkup replyKeyboardMarkup = new ReplyKeyboardMarkup();
          sendMessage.setReplyMarkup(replyKeyboardMarkup);
          replyKeyboardMarkup.setSelective(true);
          replyKeyboardMarkup.setResizeKeyboard(true);
          replyKeyboardMarkup.setOneTimeKeyboard(true);
  
          // new list
          List&lt;KeyboardRow&gt; keyboard = new ArrayList&lt;&gt;();
  
          // first keyboard line
          KeyboardRow keyboardFirstRow = new KeyboardRow();
          KeyboardButton keyboardButton = new KeyboardButton();
          keyboardButton.setText("Share your number &gt;").setRequestContact(true);
          keyboardFirstRow.add(keyboardButton);
  
          // add array to list
          keyboard.add(keyboardFirstRow);
  
          // add list to our keyboard
          replyKeyboardMarkup.setKeyboard(keyboard);
  
          try {
              sendMessage(sendMessage);
          } catch (TelegramApiException e) {
              e.printStackTrace();
          }
  
          System.out.println("#############");
          System.out.println(update.getMessage().getContact());
          System.out.println("#############");
  
      }
   }
  }
  </code></pre>