@Override
    protected void hyperlinkActivated(@NotNull HyperlinkEvent e) {
      JEditorPane pane = (JEditorPane)e.getSource();
      if (e instanceof HTMLFrameHyperlinkEvent) {
        HTMLDocument doc = (HTMLDocument)pane.getDocument();
        doc.processHTMLFrameHyperlinkEvent((HTMLFrameHyperlinkEvent)e);
      }
      else {
        URL url = e.getURL();
        if (url != null) {
          BrowserUtil.browse(url);
        }
      }
    }
@Override
    protected void hyperlinkActivated(@NotNull HyperlinkEvent e)