Github user ottobackwards commented on the issue:
https://github.com/apache/metron/pull/873
This has been submitted to Commons Lang :
https://github.com/apache/commons-lang/pull/311
The version there is refactored and also java 7 comparable ( so I had to
lose Optional and Lambdas ).
I will port over the changes later, don't let it stop your review ;)---
