/* Removes descriptor from the list and returns it. Returns {@code null}
if descriptor is not found */
private static Descriptor remove(ArrayList<Descriptor> list, Descriptor item) {
if (list.remove(item)) return item;
else return null;
}
/* Removes descriptor from the list and returns it. Returns {@code null}
if descriptor is not found */
private static Descriptor remove(ArrayList<Descriptor> list, Descriptor item) {
if (list.remove(item)) return item;
else return null;
}
