static <A> ListCellRenderer<A> lambdaMapLike customToStringListCellRenderer(IF1<A, S> toString) {
  ret (ListCellRenderer) new DefaultListCellRenderer {
    @Override
    public Component getListCellRendererComponent(JList list, O value, int index, bool isSelected, bool cellHasFocus) {
      ret super.getListCellRendererComponent(list, toString.get((A) value), index, isSelected, cellHasFocus);
    }
  };
}