Output of java commands Insure that the java command returns driver version information. Failure to return version information may show an incompatibility or environment problem. Insure that successful driver version information matches the expected driver name and version. Check available resources to see if the driver version is associated with limitations, bugs, or other known issues. Bugzilla is the best point of reference for OpenLink JDBC drivers. Compare Multi-Tier JDBC client java output with Request Broker Version and Database Agent Version strings. Differing client and server versions create compatibility and stability problems. Insure you have java version 1.5 or greater in any environment where OpenLink Express Edition drivers are deployed.