[java ee programming] I need a help to understand ATL,JSF Java project (any voluteer??)

*Hi all* *I need help from an expert in java specially in ATL transformation and JSF .* *Actually I have a project which I have to run, and I really could not understand it, please if any volunteer would be able to share and Help just tell me and I will send it to him and explain more my needs,

[java ee programming] cannot find javax.persistence package

Hello, I am working on bookstore1example for Java EE Programming basics course from Java EE 5 tutorial Chapter 4. When attempting to run bookstore1 project I am getting an error: package javax.persistence does not exist. Where can I find this package? What jar file contains it? How do I