/**
* Returns <tt>true</tt> if this set contains all of the elements in the specified collection.
*
* @param c collection to be checked for containment in this set
* @return <tt>true</tt> if this set contains all of the elements in the specified collection
* @throws NullPointerException if the specified collection is null
*/
public boolean containsAll(Collection<?> c) {
if (!(c instanceof JumboEnumSet)) return super.containsAll(c);
JumboEnumSet es = (JumboEnumSet) c;
if (es.elementType != elementType) return es.isEmpty();
for (int i = 0; i < elements.length; i++)
if ((es.elements[i] & ~elements[i]) != 0) return false;
return true;
}
/**
* Adds all of the elements in the specified collection to this set.
*
* @param c collection whose elements are to be added to this set
* @return <tt>true</tt> if this set changed as a result of the call
* @throws NullPointerException if the specified collection or any of its elements are null
*/
public boolean addAll(Collection<? extends E> c) {
if (!(c instanceof JumboEnumSet)) return super.addAll(c);
JumboEnumSet es = (JumboEnumSet) c;
if (es.elementType != elementType) {
if (es.isEmpty()) return false;
else throw new ClassCastException(es.elementType + " != " + elementType);
}
for (int i = 0; i < elements.length; i++) elements[i] |= es.elements[i];
return recalculateSize();
}