<chris@zwei> ~/code/jbmgen$ ./run.sh test/mp3s/v2.4
test/mp3s/v2.4
test/mp3s/v2.4/New Delhi FM - Under Major Influence.mp3
Under Major Influence
<chris@zwei> ~/code/jbmgen$ ./run.sh test/
Exception in thread "main" java.lang.NullPointerException
        at java.io.File.<init>(File.java:194)
        at Node.<init>(Node.java:20)
        at Tree.traverse(Tree.java:53)
        at Tree.<init>(Tree.java:18)
        at Index.<init>(Index.java:8)
        at Index.main(Index.java:30)
<chris@zwei> ~/code/jbmgen$ ./run.sh test/mp3s/v2.3
test/mp3s/v2.3
test/mp3s/v2.3/New Delhi FM - Under Major Influence.mp3
Under Major Influence