This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
I don't have OS X but this is what I would try:
edit Constructing a JSpinner.NumberEditor for jSpinnerQuantity doesn't automagically set the editor to the spinner. You would have to use setEditor(...) for that to happen.
There are no new questions, but there may be new answers.