private static boolean isHintsAllowed(Window window) {
    if (window instanceof RootPaneContainer) {
      final JRootPane pane = ((RootPaneContainer)window).getRootPane();
      if (pane != null) {
        return Boolean.TRUE.equals(pane.getClientProperty(AbstractPopup.SHOW_HINTS));
      }
    }
    return false;
  }
private static boolean isHintsAllowed(Window window)