public HelpTooltip setLink(@NlsContexts.LinkLabel String linkText, @NotNull Runnable linkAction, boolean external) {
    link = new MyActionLink(linkText, linkAction, external) {
      @Override
      protected void hidePopup() {
        HelpTooltip.this.hidePopup(true);
      }
    };
    linkOriginalFontScaler = new JBFontScaler(link.getFont());
    return this;
  }
public HelpTooltip setLink(@NlsContexts.LinkLabel String linkText, @NotNull Runnable linkAction, boolean external)