Neo4j connection to Denodo

I am very new to using the ETL tool. I have been trying to establish a JDBC connection to a Denodo server. I have verified that the correct driver is located in the plugins folder and I am pointing the ETL tool to the driver. The error messages received are:

log4j:WARN No appenders could be found for logger (com.denodo.vdb.jdbcdriver.configuration.ConfigurationParametersManager).

log4j:WARN Please initialize the log4j system properly.

log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

Any help would be greatly appreciated.