public void setOverlappingScrollBar(boolean overlappingScrollBar) {
    boolean oldValue = myIsOverlappingScrollBar;
    myIsOverlappingScrollBar = overlappingScrollBar;

    if (oldValue != myIsOverlappingScrollBar) {
      revalidate();
      repaint();
    }
  }
public void setOverlappingScrollBar(boolean overlappingScrollBar)