IDPF/epubcheck — pull request #382 by santoch (2014-07-07 16:58:52+00:00)
Title: Fix for bug #381 in public epubcheck - NullPointerException on Issue95.epub

@apond
null and empty opf path name were both handled above. Throwing MessageId.OPF_002 for a null or empty path makes no sense (how can you have a file not found on a file with a null or empty name?) so turning this into an else if () is correct.