XMPP Smack Library / Rebind extension / Library Compilation

Hello, I have some difficulties with implementing changes (see below) in Smack library and compiling the code for further use. This is XMPP extension that I want to implement to Smack: Mobile P1-spec fast reconnect (“rebind”) I will need a detailed step-by-step walkthrough on how to implement rebind and compile the library, so the connection works properly and all packets parse correctly. I'd very much appreciate some help. The budget of the project is USD500. Thank you!