code: @Execute
      public HtmlResponse edit(final EditForm form) {
          final String jspType = "view";
          final File jspFile = getJspFile(form.fileName, jspType);
          try {
              form.content = new String(FileUtil.readBytes(jspFile), Constants.UTF_8);
          } catch (final UnsupportedEncodingException e) {
              throw new FessSystemException("Invalid encoding", e);
          }
          saveToken();
          return asEditHtml(form);
      }
docs: ------