Fix code coverage build due to analytic tests w/ NULLs failing on HBase

Change-Id: I2aab2ca8a5c5c3bfa3bd1572c3d24644dde2792a
Reviewed-on: http://gerrit.sjc.cloudera.com:8080/4437
Reviewed-by: Alex Behm <alex.behm@cloudera.com>
Tested-by: jenkins