The eXo platform is a powerful Open Source - JSR 168 compliant - enterprise portal built from several modules. It's based on Java Server Faces, Pico Container, JbossMX and AspectJ.
...dedicated into Java open source projects
BnPortal is an open source Java/J2EE web portal system (JSR 168 compliant). It is a fork of the Liferay Enterprise Portal.
Bnportal has the following features:
Stringbeans is a portal framework compatible with JSR 168 Portlet API standard. Stringbeans offers JAAS based authentication, flexible portlet access control and monitoring, and support for mobile clients. It is bundled with portlets for displaying charts, reports, database tables, XML documents, RSS headlines, etc.
The JAva ManagEd Content System, or Jamecs, is a powerful Content Management Framework / Portal System for the J2EE Servlets environment. Jamecs provides a flexible, tightly integrated object persistence layer together with advanced view creation and rendering functionality.
Jamecs integrates the Apache Velocity template engine, and while JSP can be used with ease the system encourages use of Velocity Template Language (VTL) code throughout the system, and provides many advanced features such as conditional VTL views, inheritable properties containing VTL, and a rich standard Velocity environment totally integrated into the CMF.
The system is fairly young at the moment, and is more Framework than CMS / Portal, but we're getting there!
The GridSphere portal framework provides an open-source portlet based Web portal. GridSphere enables developers to quickly develop and package third-party portlet web applications that can be run and administered within the GridSphere portlet container. It is JSR 168 and Websphere Porlet API compliant. Version 2.0 will be released in June 2004. Tutorials (sources, presentation) , slides and documentation (docbook in source, pdf and html) as well as the sourcecode are available from the homepage
Jetspeed is an Open Source implementation of an Enterprise Information Portal, using Java and XML. The data presented via Jetspeed is independent of content type, This means that content from for example XML,RSS or SMTP can be integrated with Jetspeed.
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