if (accessibleContext != null) { AccessibleJScrollPane asp = (AccessibleJScrollPane) accessibleContext; asp.resetViewPort(); }
  public void setViewport(JViewport v)  {    if (viewport == v)      return;        JViewport old = viewport;    removeNonNull(old);    viewport = v;    addNonNull(v, JScrollPane.VIEWPORT);    revalidate();    repaint();    firePropertyChange("viewport", old, v);    sync();  }