Github user PepperJo commented on the issue:
https://github.com/apache/incubator-crail/pull/13
Moved plugin to parent pom. Note that I do not yet enforce style check on
compilation but you can manually run checkstyle with 'mvn checkstyle:check'. I
propose whenever someone changes a file to make two commits one that fixes the
style and one for the issue. Otherwise solving all the errors would probably
take a few hours...---
