@Override
public T next() {
if (next == null) {
throw new NoSuchElementException();
}
current = next;
index++;
next = enumerator.nextObject();
return current;
}
Iterator(NSEnumerator<T> enumerator) {
this.enumerator = enumerator;
index = -1;
current = null;
next = enumerator.nextObject();
}
