Github user vrozov commented on a diff in the pull request:
https://github.com/apache/drill/pull/1213#discussion_r182445595
--- Diff:
exec/vector/src/main/java/org/apache/drill/exec/util/CallBack.java ---
@@ -1,4 +1,4 @@
-/**
+/*
--- End diff --
The same as the other license header---
