private void interceptorMove(File from, File to) throws IOException {
   interceptor.afterMove(from, to);
   interceptor.doMove(from, to);
   // the doMove works asynchronusly. lets give him some time ...
   for (int i = 0; i < 30; i++) {
     waitALittleBit(200);
     if (!from.exists() || to.exists()) {
       break;
     }
   }
 }