Major Description
Add org.apache.commons.collections4.IteratorUtils.first(Iterator<E>):
/**
* Returns the <code>first</code> value in {@link Iterator}, throwing
* <code>IndexOutOfBoundsException</code> if there is no such element.
* <p>
* The Iterator is advanced to <code>index</code> (or to the end, if
* <code>index</code> exceeds the number of entries) as a side effect of this method.
*
* @param <E> the type of object in the {@link Iterator}
* @param iterator the iterator to get a value from
* @return the first object
* @throws IndexOutOfBoundsException if the request is invalid
* @since 4.2
*/
public static <E> E first(Iterator<E> iterator)