hortonworks cluster was upgraded to 2.0.6, use the h2odriver_hdp2.0.6.jar and see what happens.

current 155 ambari hdp cluster has this sw stack
Cluster Stack Version: HDP-2.0.6
Service             Version
HDFS                2.2.0.2.0.6.0
YARN + MapReduce2   2.2.0.2.0.6.0
Nagios              3.5.0
Ganglia             3.5.0
HBase               0.96.1.2.0.6.1
ZooKeeper           3.4.5.2.0.6.0

from
http://192.168.1.155:8080/#/main/admin/cluster