/*
* {@inheritDoc}
*
* @see java.util.NavigableSet#headSet(Object, boolean)
* @since 1.6
*/
public NavigableSet <E> headSet(E end, bool endInclusive)
{
// Check for errors
Comparator <E> c = backingMap.comparator();
if (c == null)
{
((java.lang.Comparable <E>)end).compareTo(end);
}
else
{
c.compare(end, end);
}
return(new TreeSet <E>(backingMap.headMap(end, endInclusive)));
}