static <A extends AbstractButton> A setVerticalAlignment(final int pos, final A a) {
  if (a != null) swing { a.setVerticalAlignment(pos); }
  ret a;
}

static <A extends JLabel> A setVerticalAlignment(final int pos, final A a) {
  if (a != null) swing { a.setVerticalAlignment(pos); }
  ret a;
}