@RequestMapping(value = "/removeDocumentType", method = RequestMethod.GET)
 public @ResponseBody void removeDocumentType(
     @RequestParam(value = "nID") Long nID, HttpServletResponse response) {
   try {
     documentTypeDao.removeDocumentType(nID);
   } catch (RuntimeException e) {
     response.setStatus(403);
     response.setHeader("Reason", e.getMessage());
   }
 }