static <A extends Component> A jMinWidth_pure(int w, A c) {
  if (c != null) swing {
    Dimension size = c.getMinimumSize();
    c.setMinimumSize(new Dimension(w, size.height));
  }
  ret c;
}

static <A extends Component> A jMinWidth_pure(A c, int w) {
  ret jMinWidth_pure(w, c);
}