The first thing I would like to mention is that the message:
“Loading class com.mysql.jdbc.Driver'. This is deprecated. The new driver class is com.mysql.cj.jdbc.Driver’. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.”
is a warning not an error.
Please check out the [Changes in the Connector/J API](https://dev.mysql.com/doc/connector-j/8.0/en/connector-j-api-changes.html) section from the MySQL documentation. This section states that this warning comes from the name of the class that implements "java.sql.Driver" in MySQL Connector/J having changed from com.mysql.jdbc.Driver to com.mysql.cj.jdbc.Driver. The warning comes from there being a reference to an old MySQL JDBC driver that is no longer supported.
If you have a valid support user account, please open a new support case at support.denodo.com so that the support team can review this issue in detail.
Hope this helps!