Github user ejwhite922 commented on the issue:
https://github.com/apache/incubator-rya/pull/264
System.getProperty("user.home") returns paths with backslashes in Windows
(i.e. "C:\\Users\\<user.name>" is returned). The parsing of this fails in a
call to String.replaceFirst(String regex, String replacement) since the
backslashes aren't escaped as needed for the replacement param string. The
paths used in the unit test don't affect this since
System.getProperty("user.home") is what's causing it to fail (called inside
RyaCommand.loadData).
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