I mostly focused on just porting the content that was there. ;There are a couple interesting observations to be made when picking up a long running document on the Internet.
That was Then
Back when that document was written (say 2003) the internet was a less consistently useful place. ;GeoTools with its habit of using new tools (maven!) new techniques (refactoring!) and new ideas (factory pattern) was often needed to serve as an initial orientation for developers in addition to documenting the running of the project.
This is now
These days we would not bother to explain, after all stack overflow is a click away: