On the issue of the port already in use and multiply the application instance?

I use the message connection to receive sms. When I restart the application, I found the already used port exception. I've been through many posts and believe that BB allows a UNIQUE APPLICATION connecting the port of sms at a time. But the port of sms I know certainly is used only by my candidacy, is somehow wrong to create a second instance of application trying to access this port?

This question confused me a lot of time, to appreciate someone give me a help.

This problem has been resolved.

The two possible solutions for this problem:

1 re - save the connection string for registery push in the start method. but avoid registering a new when enforcement is woken up by sms push, otherwise it won't get the message.

public void startApp()
{
 String[] list = PushRegistry.listConnections( true );
            boolean isByPush = (list != null && list.length > 0) ? true : false;
            if(!isByPush)
            {
                PushRegistry.unregisterConnection( connString );
                PushRegistry.registerConnection( connString,Test.class.getName(), "*" );
            }

            bbReceiveSmsThread = new BBReceivingSmsThread(connString);
            bbReceiveSmsThread.start();        

}

    private static class BBReceivingSmsThread extends Thread
    {
        private boolean stop = false;
        private MessageConnection mc;
        private String connString;

        public BBReceivingSmsThread(String connString)
        {
            this.connString = connString;
        }

        public synchronized void stop() throws IOException
        {
            stop = true;
            mc.close(); // Close the connection so the thread returns.
        } 

        public void run()
        {
            try
            {
                mc = (MessageConnection)Connector.open(connString);
                for(;;)
                {
                    if ( stop ) return;

                    Message message = mc.receive();

                    String text = null;

                    if( message instanceof TextMessage ) text = ( (TextMessage)message ).getPayloadText();
                    if( message instanceof BinaryMessage ) text = new String( ( (BinaryMessage)message ).getPayloadData(), "UTF-8" );

                    if(text != null)
                    {
                       //do your message here
                    }
               }
          }
          catch (Exception e) {}
        }
    }

Tags: BlackBerry Developers

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MessageConnection is pretty useless, since only one application can attach to the SMS port at a time.

My advice is to switch to use the method of datagram.

See this article:

http://www.BlackBerry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800451/800563/What_Is...

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On the issue of the port already in use and multiply the application instance?

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