Nevermind on that last post... all the test classes which compile correctly can be found in the source archive: bacnet4J-src.zip which can be found here: http://sourceforge.net/projects/bacnet4j/files/bacnet4j/1.2/
The are not in bacnet4j.jar or seroUtils.jar
I would still love to know the basic design of this package or a good description of the LocalDevice and RemoteDevice classes...