Class UnmodifiableSet

core/src/main/jdk1.1/java/util/Collections.java:132–150

    }

    static class UnmodifiableSet
        extends UnmodifiableCollection
        implements Set, Serializable
    {
        UnmodifiableSet(Set s)
        {
            super(s);
        }

        public boolean equals(Object o)
        {
            return c.equals(o);
        }

        public int hashCode()
        {
            return c.hashCode();
        }
    }

    public static List unmodifiableList(List list)
    {