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);