static <A> A lastThat(L<A> l, O pred) {
  for (int i = l(l)-1; i >= 0; i--) {
    A a = l.get(i);
    if (checkCondition(pred, a))
      ret a;
  }
  null;
}

static <A> A lambdaMapLike lastThat(O pred, L<A> l) {
  ret lastThat(l, pred);
}

static <A> A lastThat(IPred<A> pred, L<A> l) {
  ret lastThat((O) pred, l);
}

static <A> A lastThat(L<A> l, IPred<A> pred) {
  ret lastThat(pred, l);
}

static <A> A lastThat(Iterable<A> l, IPred<A> pred) {
  A x = null;
  if (l != null) for (a : l)
    if (pred.get(a))
      x = a;
  ret x;
}