Yesterday, I spent a couple of hours trying to work out why we were getting an UnsatisfiedLinkError on the OCI8 libraries when we were running the 9.2 JDBC OCI drivers against an Oracle 9.2 database on Windows Server 2003.
After a lot of head scratching it turned out that the application's ojdbc14.jar and the OCI libraries were mutually incompatible despite appearing to be for the same point release of Oracle.
The application's driver jar was the one that was checked into CVS, whereas the libraries came as part of a new install of Oracle. When we used the driver jar from the new install, our problems went away.
It is definitely worth remembering to always use the driver jars that came with the libraries that you are using.
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