JDBC storage plugin fails

["Wilburn, Scott" <Sc...@VerizonWireless.com.INVALID>]

Hello,
I am trying to connect to a mysql database using the jdbc storage plugin using Drill 1.5 described here: https://drill.apache.org/docs/rdbms-storage-plugin/

When I try to create the plugin through the web UI, I get the following vague error:
"Please retry: error (unable to create/ update storage)"

I tried to see if more information exists in the drillbit logs, but didn't see anything relevant. Does anyone know where I can find a better description of the problem, or is JDBC just broken in 1.5? I found the following Jira with the same description for 1.2 (DRILL-3977). Has it been broken since 1.2, or am I doing something stupid?

Any help would be appreciated.

Thanks,
Scott Wilburn