datagramconnection/messageconnection receive() does not block?

Hi, I wrote a SMS using JDE4.7 listener, the listener is in its own thread.  This runs in the simulators for 9530 (OS4.7), 8310 (OS4.5) and 8330 (OS4.3) seems to be very good.  However, when deploying on a live device, it seems work correctly for the 9530 (asbl, 4.7.0.75).

I have attached the live 8310 (att, OS4.5.0.110) and 8330 (asbl, OS4.3.0.127) to my debugger, and when starting the listening thread, the connection.receive () method does not seem to hang at all, it returns immediately with a "String index out of range:-2" exception.  I have also compiled this same code under JDE4.3, which does not seem to make a difference.

In which case it is important, the 9530 and 8330 are on BIS, the 8310 is on BES with rather strict policies.

I tried both types of connections below, the two work very well for the 9530, but these two don't for curves. Any help would be appreciated, I've been hitting my head against the wall for the last 2 weeks trying to find a solution.

dgConnection = (DatagramConnection)Connector.open("sms://:0");
Datagram datagram = dgConnection.newDatagram( dgConnection.getMaximumLength() );
dgConnection.receive( datagram );
String address = new String( datagram.getAddress() );
dgConnection.close();

msgConnection = (MessageConnection)Connector.open("sms://:0");
Message message = msgConnection.receive();
String address = message.getAddress();
msgConnection.close();

I saw this, and I think that the exception that you receive is the result of a bug in the firewall application. He tries to instantiate a "Permissions" dialog box so that the user can approve the use of the SMS port.

Check the permissions of application for your device - I bet that 'phone' is set to 'request' or 'decline '. Change to 'Allow' and your problem should go away.

Tags: BlackBerry Developers

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