static JList showFilesListWithAction_reloadable(S title, final F0<L<File>> filesMaker, final VF1<File> action) {
  final JList list = showFilesListWithAction(filesMaker!, action);
  addToPIFrame(list, centeredButtons("Reload", rThread {
    fillListWithStrings(list, map f2s(filesMaker!))
  }));
  setPIFrameTitle(title, list);
  ret list;
}