Exception in thread "main" java.lang.NullPointerException
	at FootnoteProcessor$Footnotes.add(FootnoteProcessor.java:256)
	at FootnoteProcessor$FootScanner.process(FootnoteProcessor.java:231)
	at FootnoteProcessor$AbstractScanner.process(FootnoteProcessor.java:165)
	at FootnoteProcessor.processFile(FootnoteProcessor.java:87)
	at FootnoteProcessor.main(FootnoteProcessor.java:64)
Command exited with non-zero status 1
result: java FootnoteProcessor /home/magnus/Artikel/2008/10/sprachenshootout/python/a1/sample4.txt | 2.73 | 0.23 | 3.01 | 1 | 118%