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

static <A extends Component> A jMinHeight(int h, A c) {
  Dimension size = c.getMinimumSize();
  c.setMinimumSize(new Dimension(size.width, max(h, size.height)));
  ret jPreferHeight(h, c);
}