Does exists any JAR which allow my JSF application:
Important: we don't have any workItem, we just use TFS as repository.
I've searched for it in Google, but I just have found jars for Jenkins which allows me to make a job for it. That's not exactly what I want.
Once you've downloaded the TFS Java SDK, have a look at a an introductory post to see how you make calls to TFS using the TFS Object Model.
That sample is about work items, but once you understand the object model you should be able to work out how to make calls related to version control. Also, as the object model is consistent between Java and .NET, you should be able to look at a C# example that does something similar to what you want and adapt those as needed.