JBoss's jdbc resource adapters do NOT implement CCI
Thanks for your reply Adrian. Even the Firebird resource adapter does not seem to implement the CCI.
I can guess the reason - because JDBC is already a standard, it may not make sense to implement CCI on top of that. However, taking advantage of the J2EE pooling facilities and using them alongwith JDBC makes sense and that is probably what the JDBC-JCA local resource adapter seeks to achieve.