@Nonnull
    public static <T> Set<T> addAllAndMakeImmutable(@Nonnull Set<T> original, @Nullable T... objects) {
        return unmodifiableSet(addAll(original, objects));
    }
@Nonnull
    public static <T> Set<T> addAllAndMakeImmutable(@Nonnull Set<T> original, @Nullable T... objects) {
        return unmodifiableSet(addAll(original, objects));
    }
@ Nonnull public static < T > Set < T > addAllAndMakeImmutable ( @ Nonnull Set < T > original , @ Nullable T ... objects ) { return unmodifiableSet ( addAll ( original , objects ) ) ; }
Returns an unmodifiable {@link Set} containing the given <code>objects</code>.
Returns an unmodifiable {