Java Development Tools

I hope someone can help me solve this problem (which I am sure others have encountered).

The JDK that is downloaded together with JDeveloper 10.1.2 is JDK 1.4.2. However, I believe the JDBC jar files that comes together with JDeveloper 10.1.2 are for JDK 1.2 : classes12.jar, classes12dms.jar and nls_charset12.

What I did was I replaced the JDeveloper 10.1.2 JDBC (JDK 1.2) jar files with the JDBC jar files from JDeveloper 10.1.3 download i.e. ocrs12.jar, ojdbc14.jar, ojdbc14dms.jar and orai18n.jar and then create a new JDBC Library which references these new jar files. I was able to successfully run my applications (under my modified JDeveloper 10.1.2) using this new JDBC library (instead of the original 'Oracle JDBC' library). However, when I created a Database Connection in this modified JDeveloper 10.1.2, the connection was unsuccessful. I received the error message "Unable to find driver: oracle.jdbc.driver.OracleDriver".

My organisation requires me to use JDK 1.4.2 and therefore I cannot use JDeveloper 10.1.3 (which I did not encounter any JDBC problem) as it is certified to run only on JDK 1.5.

Please help. Thanks.