Github user PascalSchumacher commented on the issue:
https://github.com/apache/commons-lang/pull/304
@garydgregory For me too and the build on travis with java 9 has been
sucessfully running for months now.
This seems to be a locale related thing. I can replicated the 8 test
failures by adding `-Duser.country=GB -Duser.language=en` to surefire `argLine`.---
