public static <E> E getOnlyElement(Iterable<E> traversal, E defaultElement) {
return getOnlyElement(traversal.iterator(), defaultElement);
}
public static void verifyElementOrder(
Iterable<? extends Element> elements, String key, Order order, int expectedCount) {
verifyElementOrder(elements.iterator(), key, order, expectedCount);
}
public static <E> E getOnlyElement(Iterable<E> traversal) {
return getOnlyElement(traversal.iterator());
}