Plugins that are only classloaders, with no services. These typically are used to share classes among several independent services.
 | Professional Apache Geronimo (Wrox Professional Guides) by Jeff Genender |
 | Apache Geronimo: Enterprise Java Development and Deployment (2012) by Mulder, Aaron |
 | Pro Apache Geronimo (2006) by Kumar, Kishore |
 | Apache Geronimo 2.1: Quick Reference (2009) by George, Manu T., Chillakuru, Vamsavardhana Reddy |