DataBase Connectors result assignment (Oracle)

I try to assign the output of an Oracle Database Connector to a process variable (typed : java.sql.ResultSet), but I have the following error :

java.lang.reflect.InvocationTargetException org.bonitasoft.engine.exception.BonitaRuntimeException: USERNAME=install | java.lang.ClassCastException: oracle.jdbc.driver.ScrollableResultSet cannot be cast to java.io.Serializable

If i remove the output assignment (script option), the connector work.

I don't understand why it doesn't work, any idea ?

Some Books for Bonita 6.x


Is there any cook book for bonita 6.x ?