public void spaceUsersGet(HttpServletRequest request, HttpServletResponse response)
     throws Exception {
   String prefixCode = request.getParameter("prefixCode");
   Space space = jtrac.loadSpace(prefixCode);
   Document d = XmlUtils.getNewDocument("users");
   Element root = d.getRootElement();
   root.addAttribute("prefixCode", prefixCode);
   List<User> users = jtrac.findUsersForSpace(space.getId());
   for (User user : users) {
     root.addElement("user")
         .addAttribute("loginName", user.getLoginName())
         .addText(user.getName());
   }
   writeXml(d, response);
 }