/**
* Returns a shallow copy of this <tt>HashSet</tt> instance: the elements themselves are not
* cloned.
*
* @return a shallow copy of this set.
*/
public Object clone() {
try {
HashSet newSet = (HashSet) super.clone();
newSet.map = (HashMap) map.clone();
return newSet;
} catch (CloneNotSupportedException e) {
throw new InternalError();
}
}
