Hi Fidel,
There is a difference between the jdbc driver "delivered" with an oracle RDBMS version, the jdbc that can "connect" to a RDBMS version and the jdbc "supported by SAP"
...
Neither the Oracle instantclient 11.2.0.4 nor the 12.1.0.2 have the ojdbc14.jar ...
... ohh, if it would be just that. SAP builds its "own" Oracle client based on the instant client and specific JDBC files, but does not document the exact version and bug fixes of the included (old) JDBC files. So the SAP/Oracle client could be something like "V1" in the readme file, but you have no clue which JDBC fixes are deployed or not. The jdbc.version program is also no solution as it just shows the main version up to the 4th digit. I struggled several times with such things as you have no idea which bug fix is included or not. 
Luckily the guys at Oracle development were able to figure out, but it is a rough time until you get up to this point.
Regards
Stefan