There is just one JSF Framework and latest version is 2.1, and is not bundled natively with js framework. Remember that JSF and any other web framework like Struts or Spring mission is to help in the development cycle by providing a mature MVC framework, but beyond that, it is a pure Java Web Application.
As any Web Application, you can add any JavaScript framework you need to work with (like extjs). Specifically in JSF, there are tag component frameworks you can add that comes with ajax functionality like RichFaces and PrimeFaces both of them come with jQuery and you should check the shipped version before try to add your own jQuery version.