Claudia,
Yes, Oracle 9i/AS is the same as OC4J.
Is it possible to connect to a running OC4J which is listening to the debug port and still make
use of the jsp debug facility – ie. not running via the application server configuration?
No, you can’t debug JSP’s natively on OC4J because it does not support JSR-045, which is required for source level debugging. If you want to connect to an externally launced instance to debug your Java code, you can do that through Eclipse’s built-in support for remote debugging. However, I’ll have to refer you to the Eclipse documentation for that since at this point it’s not a MyEclipse feature since it wouldn’t use our application connectors.
Hope that helps.