jsr82 beginner needs help

[jay|rookie]

Hi,

i'm a ubuntu and bluetooth-programming beginner.

i've got problems to get my bluetooth device working using sun jsr 82 classes.

what i have:
Bus 005 Device 004: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
what i've done:
First i installed bluez components and tested them by pairing my PC with my mobile phone.
It works fine.
Then I plugged the packages javax.bluetooth and javax.obex into my project.
Sun's documentation contains a code snippet that should produce an objectinstance of my bluetooth device.
The Snippet is:
// retrieve the local Bluetooth device object
LocalDevice local = LocalDevice.getLocalDevice();
// retrieve the Bluetooth address of the local device
String address = local.getBluetoothAddress();
// retrieve the name of the local Bluetooth device
String name = local.getFriendlyName();

Now I get the Exception of Type -BluetoothStateException- just when running the first line.
Where's my problem? I think something basic is missing here ..

Thank you for any help...