static Runnable buttonActionWithCloseablePre(Runnable r, IF1<JButton, AutoCloseable> pre) {
  ret -> { pcall {
    JButton button = heldInstance(JButton);
    thread {
      var closeable = pre?.get(button);
      pcallF(r);
      close(closeable);
    }
  }};
}

Began life as a copy of #1033901