}
            final File jspFile = new File(getServletContext().getRealPath(path));
            if (!jspFile.exists()) {
                throwValidationError(messages -> messages.addErrorsDesignJspFileDoesNotExist(GLOBAL), this::asListHtml);
            }
            return jspFile;
        } catch (final UnsupportedEncodingException e) {
            throw new FessSystemException("Failed to decode " + fileName, e);

     * message: The JSP file does not exist.
     * </pre>
     * @param property The property name for the message. (NotNull)
     * @return this. (NotNull)
     */
    public FessMessages addErrorsDesignJspFileDoesNotExist(String property) {
        assertPropertyNotNull(property);
        add(property, new UserMessage(ERRORS_design_jsp_file_does_not_exist));
        return this;
    }

    /**