private static <E> Set<E> createIdentityHashSet(Collection<E> items) {
        Set<E> set = createIdentityHashSet();
        set.addAll(items);
        return set;
    }
Returns a list with the given elements, ordered by the enumerated classes, ordering more specific matches first.
container-disc/src/main/java/com/yahoo/container/jdisc/ConfiguredApplication.java