RESTful web service: RESTBeansResources

Hello,

I tried to apply steps in the link http://weblogs.java.net/blog/bleonard/archive/2007/07/an_introduction_1.html

the problem is in RESTBeansResources class. the NB project did not generate the class. I do not know what is wrong. is there any library package contain this class?

I would appreciate if you help me.

Thanks
--
Motaz K. Saad