code: @Deprecated
      public void putAllParameters ()
      {
          Enumeration<?> e = _req.getParameterNames();
          while (e.hasMoreElements()) {
              String param = (String)e.nextElement();
              put(param, _req.getParameter(param));
          }
      }
docs: Don't use this method. It is terribly unsafe and was written by a lazy engineer.