The driver can be compatible with Oracle10 Oracle11? Now I have a project to access two different versions of the oracle, and always offer JDBC. Oracle. Oracleconnetion. Isvlid (l) Z is unusual, use ojdbc6. Jar, ojdbc14 no, not classes12, tried many versions of the drive, each one is not ok, some does not drive in the maven website, download 404 directly.