private byte[] getBytes(String hexText)  {
   ByteArrayOutputStream baos = new ByteArrayOutputStream();
   StringTokenizer stToken = new StringTokenizer(hexText, "-", false);
   while (stToken.hasMoreTokens()) {
       String token = stToken.nextToken();
       int i = Integer.parseInt(token, 16);
       if (token.length() > 2) {
           byte b = (byte) (i >>> 8);
           baos.write(b);
       }
       baos.write((byte) i);
   }
   return baos.toByteArray();
}