Users get an unsupported error when they use WebSphere Business Integration Adapter for JDBC to connect to Oracle via ojdbc6.jar. The JDBC Adapter works fine if they use the old ojdbc14.jar.
ojdbc6.jar requires a JDK 6 run time environment. The bundled JDK in WebSphere Business Integration Adapter for JDBC is 1.4.
Resolving the problem
Users need to upgrade the JDK run time environment. Refer to the technote below on upgrading the WBI Adapters JDK: http://www.ibm.com/support/docview.wss?uid=swg21426776