MultipleChatUser XMPP asmack join

I'm new to this OpenFire and asmack, I want the user to have the Multi Users Chatting feature, so I searched around and I found MUC, I implemented this to create a room and send invitations to other users this works, the other user gets the invitation, but another user cannot join the room.

I do this when I receive another user invitation

Here, connection is the connection of that user, and room is the name of the room that we get in the invitation.

MultiUserChat muc3 = new MultiUserChat (connection, room)

muc3.join ("testbot3");

testbot3 is just a random name.

But this is causing the 404 error.

Do I need to join the user before sending the invitation i.e. if the user sending the invitation to B sent before the invitation, then A has to join those default users in the room, and then it is up to B to refuse or just save.

What I am doing is B receives an invitation from A in this InvitingListner from B, I am trying to join the above code.

I have been trying for a long time, I am not sure what is going wrong, someone can give some sample code how to do this, it will be a great help for me.

thank

Here is some more info about my problem

As I go and check Openfire I can see the room created by the user and he added himself as the owner, so I don't think this will be a problem when creating the room.

Maybe this could be a problem when the room gets locked as I read the room when it was not fully created, I think it is a problem with filling out the form when we create the room, I am not filling out the password in the form, this could be a problem ?

Please see the following code below inside the handler. I am calling the "checkInvitation" method, which does the same as above, the code is sent 404 more. Could you please tell me what I am wrong in my code.

Do I need to add an alias to add, or something specific to the user?

public void createChatroom () {

    MultiUserChat muc = null;

    try {
      muc = new MultiUserChat(connection, "myroom@conference.localhost");
      muc.create("testbot");

      // Get the the room configuration form
      Form form = muc.getConfigurationForm();
      // Create a new form to submit based on the original form
      Form submitForm = form.createAnswerForm();
      // Add default answers to the form to submit
      for (Iterator fields = form.getFields(); fields.hasNext();) {
          FormField field = (FormField) fields.next();
          if (!FormField.TYPE_HIDDEN.equals(field.getType()) && field.getVariable() != null) {
              // Sets the default value as the answer
              submitForm.setDefaultAnswer(field.getVariable());
          }
      }
      // Sets the new owner of the room
      List owners = new ArrayList();
      owners.add("admin@localhost");
      submitForm.setAnswer("muc#roomconfig_roomowners", owners);
      // Send the completed form (with default values) to the server to configure the room
      muc.sendConfigurationForm(submitForm);
      muc.join("d");

      muc.invite("b@localhost", "Meet me in this excellent room");

      muc.addInvitationRejectionListener(new InvitationRejectionListener() {
          public void invitationDeclined(String invitee, String reason) {
              // Do whatever you need here...
              System.out.println("Initee "+invitee+" reason"+reason);
          }
      });

    } catch (XMPPException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

    public void setConnection(XMPPConnection connection) {
    this.connection = connection;
    if (connection != null) {
        // Add a packet listener to get messages sent to us
        PacketFilter filter = new MessageTypeFilter(Message.Type.chat);
        connection.addPacketListener(new PacketListener() {
            public void processPacket(Packet packet) {
                Message message = (Message) packet;
                if (message.getBody() != null) {
                    String fromName = StringUtils.parseBareAddress(message
                            .getFrom());
                    Log.i("XMPPClient", "Got text [" + message.getBody()
                            + "] from [" + fromName + "]");
                    messages.add(fromName + ":");
                    messages.add(message.getBody());
                    // Add the incoming message to the list view
                    mHandler.post(new Runnable() {
                        public void run() {
                            setListAdapter();
                            checkInvitation();
                        }
                    });
                }
            }
        }, filter);


        mHandler.post(new Runnable() {
            public void run() {
                checkInvitation();
            }
        });
    }
}