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

static <A extends Component> A jMinHeight_pure(A c, int h) {
  ret jMinHeight_pure(h, c);
}