Migrate App build from JDeveloper to maven

Older multi-module application built with JDeveloper / ADF. Currently dependencies are defined by set of jars in a defined directory, hence dependency management is manual. I want to bring this app into our CD/CI process; Maven and Jenkins.

I used Jdeveloper for starting POMs then trimmed down dependencies for each module. The build reference to JDev ojmake was removed and the module classes compile fine. The WAR and EAR packaging by Jdeveloper was not even close to the default packaging done by maven plugins. I looked at plugin configuration options but was not able to get close.

Guidance on how to migrate the application would be appreciated.