Github user vvysotskyi commented on the issue:
https://github.com/apache/drill/pull/1066
FYI: changes in pom files:
We observed issue with Avatica similar to the issue described in
https://issues.apache.org/jira/browse/CALCITE-1694. Therefore we had to make
changes in our pom files similar to the changes, made in CALCITE-1694 to fix
NoClassDefFoundError.---
