reactor-core/src/main/java/reactor/core/publisher/FluxIterable.java
@SuppressWarnings("unchecked")
	static <T> void subscribe(CoreSubscriber<? super T> s, Iterator<? extends T> it) {
		subscribe(s, it, null);
	}
@SuppressWarnings("unchecked")
	static <T> void subscribe(CoreSubscriber<? super T> s, Iterator<? extends T> it) {
		subscribe(s, it, null);
	}
Common method to take an Iterator as a source of values.

@param s the subscriber to feed this iterator to
@param it the iterator to use as a source of values