Github user javajefe commented on the issue:
https://github.com/apache/nifi/pull/3176
Done!
However, I see Travis-CI build failed and I can't believe that's because of
my PR (the problem is in org.apache.nifi.dbcp.DBCPServiceTest and it looks like
an integration test rather than unit test, anyway there is no relation between
DBCPService and RedisUtils)---
