The thing with b4xlib is "it is a zip file", so already source codes available.
I remember there was hue and cry when jar lib source lost of some developers and those who have purchased wanted some changes as per sdk change.
Erel came out with this solution of b4xlib, but essential the author's permission is required for it.
@fernando1987 I understand your dilemma as you are just helping to get an organized code which is just available there.
Lets see what expert members suggest here.