Running on Java with Oracle, is this possible?

[eluser]dpdp[/eluser]
Hi,

A client I'm working for had us start developing an app with codeigniter on a LAMP environment. Recently we were told though that we are no longer able to deploy to a LAMP environment and are going to need to accomodate for a Java/Oracle server setup.
Now, I've tried researching the viability of this, but I have no knowledge of Java or Oracle whatsoever.

As of right now our progress on the application is minimal so I'm not concerned about the conversion from mysql to oracle or whatever needs to happen there.

But I thought I would check here first to see if anyone knows if this is even a viable option.
Here are the server specs we are requested to deploy to:

- Web Server : iPlanet 6.1 sp7
- Web Application Server : WebLogic 9.2.1.0
- Java : JDK1.5
- Oracle : 9i

If anyone has any light to shed on this, I would appreciate your help a thousand times over.