1.) Would I be able to find use in the book if I don't use Netbeans and Glassfish?
Yes. The web service development may be migrated to another
Java IDE-Web server.
2.) Does the book focus on the new features of the JAX-WS 2.2.6-2 spec only or does it introduce webservice concepts from scratch.
Provides an end-to-end example.
3.) Does the book deal with security?
No.