Bluetooth device detection

Question

Hi everyone!
(I am newb at Java, and im looking for a very simple application (i think), but im not sure how to find what im looking for, i tried sourceforge.net, but i dont know how to run the java source files.)
What im looking for is an app for PC that searches for bluetooth devices in the area, and logs their MAC address into a file (preferably .xml)
It should continuously search for devices, and update the .xml file everytime it finds a new device, or an old one dissapears, so i always know what devices are in the area at this excact moment.
Have you ever heard of such a thing, or do you simply have some good keywords for me to use :) Either way i would be very thankful for your help! :)
Cheers,
Lars

Answer 1

Ok, here is my code a bit more formatted:
public void run() {
lock = new Object();
while (!done) {
  doSearch();
    try {
    thread.sleep(DISCOVERY_LATENCY); //2000ms
    } catch (Throwable t) {}
* Start a new Device discovery
synchronized public void doSearch() {
try {
//get local bluetooth device
local = LocalDevice.getLocalDevice();
//get discovery agent
agent = local.getDiscoveryAgent();
//start a new Bluetooth discovery inquiry
agent.startInquiry(DiscoveryAgent.GIAC,this);
//we lock the thread and wait the end of the current inquiry
synchronized(lock) {
    try {
    lock.wait();
    } catch (InterruptedException e) {}
} catch (Exception e) {}
*We detected one bluetooth devices
public void deviceDiscovered(javax.bluetooth.RemoteDevice remoteDevice, javax.bluetooth.DeviceClass deviceClass) {
try {
// get the bluetooth MAC address of that device and remove any white space
String value = remoteDevice.getBluetoothAddress().trim();
if(checkTable(value) && doneDetection == false)
doneDetection = true;
launchHotSpotPage("test");
} catch (Exception e) {
System.err.println("BLUETOOH ERROR");
* The bluetooth discovery inquiry has been completed
public void inquiryCompleted(int discType) {
local = null;
agent = null;
//We unlock the thread in order to make a new discovery
synchronized(lock) {
try {
lock.notify();
} catch (Exception e) {
System.err.println("BLUETOOH ERROR");
lock = null;
lock = new Object();
}