Write and deploy portlets to Apache Geronimo with Apache Pluto
Portlets are powerful tools for aggregating data from multiple locations, integrating different applications, and providing a collaborative workspace for groups of users.
Apache Pluto is the reference implementation of the Portlet specification, so it’s a good choice for testing portlets that are in development. This article teaches you how to install and configure the Pluto portlet container inside the Apache Geronimo server.
[Includes sample code]
http://www.ibm.com/developerworks/library/os-ag-gerpluto/index.html