public static void exec(String command) {
   try {
     Runtime r = Runtime.getRuntime();
     Process p = r.exec(command);
     p.waitFor();
   } catch (Exception e) {
     Debug.println("erreur d'execution " + command + e.toString());
   }
 }
 // ---TODO: This feels like a kludge.  Find a better way to handle it.
 public void respondToEditForm(HttpServletRequest request, HttpSession session) {
   String pid = request.getParameter("productid");
   if (pid != null) {
     try {
       int product_id = Integer.parseInt(pid);
       Product prod = Product.loadProduct(new Integer(product_id));
       if (prod == null) {
         Util.noteError(
             session, "Internal error: No product with ID " + product_id + " was found.");
       } else {
         setProduct(prod);
       }
     } catch (NumberFormatException e) {
       Util.noteError(session, "Internal error: Illegal productid: " + pid);
     }
   }
   super.respondToEditForm(request, session);
   Debug.println("Version.respondToEditForm: Setting 'record' to " + getProduct());
   session.setAttribute("record", getProduct());
 }