How to make a runnable jar with necessary libraries

So i want to export an application i made to use on any Mac. It is a swing application that i made with Netbeans, so it uses the extra swing libraries that netbeans provides. When I build my project how do i know which libraries to build with it?
This is assuming that the computer Im running it on will not have the netbeans libraries, or any java libraries at all

thanks

In netbeans, when you build your project it will create a folder called "dist". That folder will contain the jar and all non-standard libraries included. As long as the client has the version of java installed that you build your code in or something greater, they will be able to run your app. You could zip it and distrubte it that way, or make and installer for it:

Java Application Installer: izPack

Thats what i do, but it doesn't create a lib folder and outputs: "Not copying libraries"