@NotNull
  private static JComponent wrapEditorNotificationComponent(JComponent component) {
    Border border = ClientProperty.get(component, FileEditorManager.SEPARATOR_BORDER);
    if (border == null) return component;

    Wrapper wrapper = new InvisibleWrapper();
    wrapper.setContent(component);
    wrapper.setBorder(border);
    return wrapper;
  }
@NotNull
  private static JComponent wrapEditorNotificationComponent(JComponent component)