Bluetooth Problem

juror

I'm writing a bluetooth server to run on a dektop pc (dell; winxp sp2).
But my server is throwing a BluetoohStateException

Code:

public MyServer() {
try {
System.out.println("Setting device to be discoverable...");
local = LocalDevice.getLocalDevice();
local.setDiscoverable(DiscoveryAgent.GIAC);
System.out.println("Start advertising service...");
server = (StreamConnectionNotifier)Connector.open(url);
System.out.println("Waiting for incoming connection...");
conn = server.acceptAndOpen();
.....
...

I debugged the code and the exception is being thrown on the line
local = LocalDevice.getLocalDevice();

Anybody have any idea why this exception is being thrown?

croo

have you defined what local is?
maybe it should be
LocalDevice local = ....

juror

croo wrote: »

have you defined what local is?
maybe it should be
LocalDevice local = ....

Ya I have local defined as
LocalDevice local = null;

lynchie

juror wrote: »

I'm writing a bluetooth server to run on a dektop pc (dell; winxp sp2).
But my server is throwing a BluetoohStateException

Code:

public MyServer() {
try {
System.out.println("Setting device to be discoverable...");
local = LocalDevice.getLocalDevice();
local.setDiscoverable(DiscoveryAgent.GIAC);
System.out.println("Start advertising service...");
server = (StreamConnectionNotifier)Connector.open(url);
System.out.println("Waiting for incoming connection...");
conn = server.acceptAndOpen();
.....
...

I debugged the code and the exception is being thrown on the line
local = LocalDevice.getLocalDevice();

Anybody have any idea why this exception is being thrown?

What library are you using? What bluetoothstack are you using? What is the full stack trace of the BluetoothStateException?

smcelhinney

Is it NullPointer maybe? Maybe LocalDevice needs to be instantiated ?

lynchie

smcelhinney wrote: »

Is it NullPointer maybe? Maybe LocalDevice needs to be instantiated ?

His code is throwing a BluetoothStateException, not a NPE. That particular method is a static method defined in the jsr-82 for retrieving access to the Bluetooth Device. My guess is the bluetooth device is not correctly installed in windows or he is using a jsr-82 implementation that does not support the windows stack.

juror

Well my bluetooth device is a Toshiba make (not at home right now so don't know exact details). The jsr-82 implementation i got with the wireless toolkit i downloaded from the java sun site

lynchie

juror wrote: »

Well my bluetooth device is a Toshiba make (not at home right now so don't know exact details). The jsr-82 implementation i got with the wireless toolkit i downloaded from the java sun site

So its probably using the toshiba stack and not the MS stack. I guess suns reference implementation doesnt work with the toshiba stack. Try download Bluecove or aventana and see if either of them work with toshiba's stack.