static JSplitPane jhsplit_minZero(Component l, Component r, double splitPoint default 0.5) {
  ret jhsplit(jMinWidth0(l), jMinWidth0(r), splitPoint);
}

static JSplitPane jhsplit_minZero(double splitPoint, Component l, Component r) {
  ret jhsplit_minZero(l, r, splitPoint);
}