http://http.cs.berkeley.edu/~darcy/Borneo/
There is no implementation for Borneo, a variant of Java developed by J. Darcy and W. Kahan at Berkeley. Since the existence of any variants of Java are anathema to the purveyors of Pure Java, it becomes important for the propagation of such ideas in the language to influence the Java purveyors. This raises political and financial concerns. (History of Java, Borneo?)
The Borneo definition document includes innumerable other ``trivial'' items that must be specified for a language: (example: How precise are constants?)
Recommended reading for a design team.