private Button getDownloadLogButton() {
    Button downloadButton = new Button(I18nUtils.getMessages().config_button_downloadLog());
    downloadButton.setIcon(AbstractImagePrototype.create(Icons.INSTANCE.download()));
    downloadButton.addListener(
        Events.OnClick,
        new Listener<BaseEvent>() {

          @Override
          public void handleEvent(BaseEvent be) {
            String url = GWT.getModuleBaseURL() + "downloadlog";
            Window.open(url, "_self", "");
          }
        });

    return downloadButton;
  }