boon/src/main/java/org/boon/Sets.java
public static <V> Set<V> set( Collection<V> collection ) {
        if (collection instanceof Set) {
            return (Set <V>) collection;
        }
        if (collection==null) {
            return Collections.EMPTY_SET;
        }
        return new LinkedHashSet<>( collection );
    }
public static <V> Set<V> set( Collection<V> collection ) {
        if (collection instanceof Set) {
            return (Set <V>) collection;
        }
        if (collection==null) {
            return Collections.EMPTY_SET;
        }
        return new LinkedHashSet<>( collection );
    }
/* Creation