We have been connecting to an older version of the server, Intersystems Cache, using the "Driver Class" com.intersys.jdbc.CacheDriver, but we need to move to IRIS instead. I have a new .jar driver file (intersystems-jdbc-3.1.0.jar) for IRIS that should allow me to use the driver class com.intersystems.jdbc.IRISDriver. Can you help me figure out how to use it?