I am using Tomcat 7 and having it manage my database connections with its DBCP implementation. In the past I have put ojdbc14.jar in $CATALINA_HOME/lib, which has been fine. However, some applications are being upgraded to Oracle 11g and require the ojdbc6.jar instead. If I take the jar out of $CATALINA_HOME/lib and put the correct one in each individual application, everything works fine, except for the "cannot unregister driver" error Tomcat logs.
Every resource I've read thus far has said that the driver jar must be in $CATALINA_HOME/lib or DBCP wont work. Except that it appears to work just fine. Perhaps I am missing something? Are there other consequences for putting the driver in each individual webapp (when having Tomcat manage connections) and not in $CATALINA_HOME/lib? Thanks, //Jeremy
