Hi Lars,
It is good to know that and the hostlist parameter is legit for a multi-host scenario. I no longer think this is a bug of SAP HANA JDBC driver. I am not sure if BoneCP framework should hide driver specific parameter from other driver. Our own code does so. We are using the standard Java jdbc manager to do the process, the manager passes the parameter list to every registered jdbc driver. SAP HANA JDBC dirver added hostlist parameter to the list. After JDBC HANA driver is done with the parameter list, our code deletes the hostlist parameter before pass the parameter list to next registered driver.
Eddy