The primary configuration file, and the file from which all of the other configuration files get called, is the httpd.conf file.
Running as an integral part of Apache is an include module called mod_jserv.so or just JServ. The JVM™ (Java Virtual Machine) interface that runs is called JServer.
The engine behind Version 9.0.2 of the Application Server is Oracle 9iAS Containers for J2EE (OC4J).