Hi Doug:

The capability of creating class graphs from text is very helpful.

in /course/com3362/sp99/DJ/cg-parsing

I get the output:
...

No path found for strategy graph:
{
	A -> D
} source: A target: D 

java.lang.NullPointerException
	at Main.main(Main.java:20)
although there is a path:
ClassGraph cg2 = new ClassGraph(
    "A = B C.  B = D.  C = .  D = ."
	);

Is the an AP Library issue? Please can you check.

-- Karl