The JBB toolset is the result of collective effort by staff and students in the University of York's Computer Science Department, over a number of years.  

Java Breadboard was updated in 2010 and soon planned to be released as an Open-Source Project. The tools operate on Windows, Linux, and Mac OS, and are free for non-commercial use. A recent journal paper discusses JBB in more detail for those interested. (if you are writing a paper yourself, then dont forget to cite this paper, and help to support the project, thankyou). See also a list of other works which cite JBB efforts.