"Must be Server" error from PushRegistry with sms

Whew ! Took 2 days to figure this out.

Recently attempted to create a MIDlet which wakes up on SMS using the PushRegistry feature in Java ME.

Kept getting "Must be Server" error at the

mc.receive()

line in following code snippet :

if (url.startsWith("sms://")) {
    MessageConnection mc = (MessageConnection) Connector.open(url);
    Message msg = mc.receive();
    String data = "";
            
    if (msg != null) {
        if (msg instanceof TextMessage) {
            form.append("TextMessage\n");
            data = ((TextMessage)msg).getPayloadText();
        }
    }
}

Turns out the JAD file of said MIDlet has the following incorrectly typed PushRegistry entry :

MIDlet-Push-1: sms://8033, org.whatever.Poink, *

There should be a ":" after the 2 "slashes" like so :

MIDlet-Push-1: sms://:8033, org.whatever.Poink, *

After the above fix, the "Must be Server" disappeared :)