Properties File: javax.usb ?

Question

Hi Guys,
I'm sure you've all heard this a million times, but I'm hung up on it. I'm trying to learn about javax.usb, and keep getting this exception:javax.usb.UsbException: Properties file javax.usb.properties not found.And I swear to God guys, it's there (i know i'm wrong though).
This is what I've added to my buildpath:
-javax-usb_1.0.1.zip
-javax-usb-ri_1.0.1.zip
-jsr80-1.0.1.jar
-jsr80_ri-1.0.1.jar
-javax-usb-tck_1.0.1.zip
Take a look for yourself: http://img.photobucket.com/albums/v335/shlumph/referencedLibraries.jpg
How come the compiler can't see that the javax.usb.properties file is there? What is the best way to fix this?
If it helps, here is my source code:
import java.io.UnsupportedEncodingException;
import java.util.*;
import javax.usb.*;
public class USBListener {
     public static void main(String[] args) {
          try{
               UsbServices services = UsbHostManager.getUsbServices();
               UsbHub root = services.getRootUsbHub();
               listDevices(root);
          } catch (Exception e) {
               System.out.println(e);
     public static void listDevices(UsbHub hub) throws UnsupportedEncodingException, UsbException {
          List devices = hub.getAttachedUsbDevices();
          Iterator iterator = devices.iterator();
          while(iterator.hasNext()) {
               UsbDevice device = (UsbDevice)iterator.next();
               describe(device);
               if(device.isUsbHub()) {
                    System.out.println("is hub");
     public static void describe(UsbDevice device)
          throws UnsupportedEncodingException, UsbException {
          UsbDeviceDescriptor descriptor = device.getUsbDeviceDescriptor();
          byte manufacturerCode = descriptor.iManufacturer();
          System.out.println("Manufacturer index: " + manufacturerCode);
          System.out.println("Manufacturer String: " + device.getString(manufacturerCode));
          System.out.println("USB version: " + decodeBCD(descriptor.bcdUSB()));
          System.out.println("Maximum control packet size: " + descriptor.bMaxPacketSize0());
     public static String decodeBCD(short bcd) {
          int upper = (0xFF00 & bcd) >> 8;
          int middle = (0xF0 & bcd) >> 4;
          int lower = 0x0F & bcd;
          return upper + "." + middle + "." + lower;
}

Answer 1

Hi,
Probably you did not set properly your classpath. Read the following FAQ:
http://javax-usb.org/faq.html#get_properties_file
http://javax-usb.org/faq.html#what_is_properties_file
http://javax-usb.org/faq.html#linux_imp_jar_file
http://javax-usb.org/faq.html#still_doesnt_work
Note that for Windows: "This is a pre-alpha Windows implementation (it does not work, it needs a kernel driver)."
http://javax-usb.cvs.sourceforge.net/javax-usb/javax-usb-ri-windows/README?view=markup
Mimo