Are the thin drivers working for you?
Yes, Oracle thin works fine - except for the 4k size limit.
It still is not working, but I'm getting closer. I had only installed the OCI drivers, not the JDBC options. Now I'm getting ORA-12154 or ORA-12705, depending on how I set the ORACLE URL.
I could still use an example of of the URL connecting with the Oracle OCI driver.