Oracle JDBC drivers must be configured properly to be compliant with J2EE 1.4. Use the following configuration for Type 2 and Type 4 drivers:
Use the JDBC driver from 126.96.36.199 or later.
The Oracle database needs to have compatible=188.8.131.52.0 or higher in its parameter ( init.ora) file.
Use the ojdbc14.jar file.
Configure the Application Server to define the following JVM property:
In addition, for Type-2 drivers, both the ORACLE_HOME and LD_LIBRARY_PATH variables (which must include $ORACLE_HOME/lib) need to be defined in the environment in which the Application Server is started. For example, add them to the asenv.conf file and ensure they are exported.