private @Nullable JScrollBar findHorizontalScrollBar() {
    JScrollPane pane = ScrollUtil.findScrollPane(myContent);
    if (pane == null || ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER == pane.getHorizontalScrollBarPolicy()) return null;
    return pane.getHorizontalScrollBar();
  }
private @Nullable JScrollBar findHorizontalScrollBar()