public ONavigableSet<E> tailSet(E fromElement, boolean inclusive) {
		return new OMVRBTreeSet<E>(m.tailMap(fromElement, inclusive));
	}
public ONavigableSet < E > tailSet ( E fromElement , boolean inclusive ) { return new OMVRBTreeSet < E > ( m . tailMap ( fromElement , inclusive ) ) ; }
@throws ClassCastException
{@inheritDoc}
@throws NullPointerException
if {@code fromElement} is null and this set uses natural ordering, or its comparator does not permit null elements
@throws IllegalArgumentException
{@inheritDoc}
@since 1.6