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Editorial Team
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Asked: 2026-05-27T21:36:38+00:00

I’ve successfully connected to XMPP server (from android XMPP client), and I can send

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I’ve successfully connected to XMPP server (from android XMPP client), and I can send messages to a user, but I can’t receive responses from that same user.

I’m sending messages like this:

  public void send_message(String message, String buddy) throws XMPPException {
    buddy += "@localhost";

    /* send message to user */
    Log.w("Sending mesage " + message + " to user " + buddy, "0");
    chat = chatManager.createChat(buddy, messageListener);
    chat.sendMessage(message);
  }

I’m passing the messageListener to the createChat function. The MessageListener’s class is:

class XMPPMessageListener implements MessageListener {
  private String from;
  private String body;

  public void processMessage(Chat chat, Message message) {
    this.from = message.getFrom();
    this.body = message.getBody();
    Log.w("*****Received message" + body + " from " + from, "0*****");
  }

}

When sending a message to a user I’m getting the following debugging output:

W/Sending mesage play to user test@localhost(  823): 0
D/SMACK   (  823): 10:43:54 AM SENT (1156346368): <message id="vwaJX-15" to="test@localhost" from="eleano@localhost/Smack" type="chat"><body>test</body><thread>249ke0</thread></message>
D/SMACK   (  823): 10:43:54 AM RCV  (1156346368): <presence id="vwaJX-12" to="eleano@localhost/Smack" from="eleano" type="error"><error code="404" type="cancel"><remote-server-no
D/SMACK   (  823): 10:43:54 AM RCV  (1156346368): t-found xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/></error></presence>
D/SMACK   (  823): 10:43:54 AM RCV  (1156346368): <presence id="vwaJX-14" to="eleano@localhost/Smack" from="test" type="error"><error code="404" type="cancel"><remote-server-not-
D/SMACK   (  823): 10:43:54 AM RCV  (1156346368): found xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/></error></presence>

And the message “test” is displayed to the connected user test (in this case). I’m sending the message from a user eleano. We can also see there’s a debug output “ending mesage play to user test@localhost” being displayed on the screen, indicating that my function is indeed called successfully.

Upon receiving the message from test to eleano, I only get this debug output:

D/SMACK   (  823): 10:44:00 AM RCV  (1156346368): <message id="58Fjj-64" to="eleano@localhost/Smack" from="test@localhost/Spark 2.6.3" type="chat"><body>yes</body><thread>0tlK7o<
D/SMACK   (  823): 10:44:00 AM RCV  (1156346368): /thread><x xmlns="jabber:x:event"><offline/><composing/></x></message>

But the user eleano is not receiving the message. We can also notice there’s no:

Log.w("*****Received message" + body + " from " + from, "0*****");

being displayed on the screen, so the MessageListener is never called. Why is that? I’ve set it up correctly as it says in documentation.

Any ideas are welcome. And thanks.

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1 Answer

  1. Editorial Team

    Thanks for pointing that out. Your observation led me to setup a listener on connection (and to listen for packages of type Char), rather than setting a listener on the chat object itself.

    Now my code looks like the following. I’m sending the packages like this:

    Message m = new Message(buddy, Message.Type.chat);
m.setBody(message);
connection.sendPacket(m);

    And receiving the messages like the following:

      /* packet listener: listen for incoming messages of type CHAT on the connection (whatever the buddy) */
  PacketFilter filter = new MessageTypeFilter(Message.Type.chat); 
  xmppManager.connection.addPacketListener(new PacketListener() { 
    public void processPacket(Packet packet) {
      Message mes = (Message)packet;
      Log.w("***"+mes.toString()+"***","0");
    }
  }, filter);

    And it works. I can send messages to the user and receive them just fine.

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