In this document we explain how to migrate an application from JBoss v4.X to JOnAS v4.X. This guide may also be useful for JOnAS version 3.X. We assume that JOnAS is already installed. If you need to install JOnAS check the documentation.
You can find more detailed information about JBoss and JOnAS in the documentation provided with each application server. However, we will try to provide enough information in this guide so that extensive consultation of each application server's documentation will not be necessary.
There are three steps involved in migrating an aplication from JBoss to JOnAS.
Convert the JBoss specific deployment descriptors and configuration files to their JOnAS counterparts.
Modify JNDI transaction lookups.
Use the JOnAS deployment tool to generate a deployable ear.