static new ThreadLocal<Bool> bindComboBoxToLiveValue_debug;

static <A extends JComboBox> A bindComboBoxToLiveValue(final A cb, final SimpleLiveValue<S> lv) {
  final bool debug = isTrue(bindComboBoxToLiveValue_debug!);
  bindLiveValueListenerToComponent(cb, lv, r { selectItem(cb, lv!) });
  onChange(cb, r {
    S s = getSelectedItem(cb);
    if (debug)
      print("ComboBox: " + s);
    lv.set(s);
  });
  ret cb;
}