Apache Geronimo v3.0 Documentation: Getting familiar with Geronimo Eclipse Plugin (GEP)

Deploying and debugging applications using GEP
Converting applications into Geronimo plugins using GEP
Importing applications built with car-maven-plugin into GEP
Making deployment plan changes with Geronimo Deployment Plan Editor — This article shows the usage of Geronimo Deployment Plan Editor to configure Geronimo deployment plans.
Using datasource pool wizard in GEP — This article shows you how to create a datasource pool in GEP during development.
Using security realm wizard in GEP