Commercial use of Netbeans classes

I would like to use a discrete set of Netbeans classes (specifically, 
the javacvs package) and without modifying them as such (other than by 
extension), embed them within a commercial application.  If those 
classes are available as source, and the text of the Sun Public License 
is also included in the software distribution, and the Netbeans sources 
themselves contain SPL license notices, am I otherwise within the terms 
of the SPL?

Thank you for any clarification you might have.

Mark J Hewitt.