The Portals Bridges project provides a Portlet bridge for Struts which can be used with Jetspeed 2. Please visit the Apache Portals Struts Portlet Bridge sub project documentation.
The Bridges project also provides a great Struts Portlet demo application:
The Portals Bridges project provides a Portlet bridge for JSF which can be used with Jetspeed 2. Please visit the Apache Portals JSF Portlet Bridge sub project documentation.
Portals Bridges also provides a JSF portlet demo application based on MyFaces JSF implementation:
The Portals Bridges project provides a Portlet bridge for Velocity which is used extensively within Jetspeed 2 itself. Please visit the Apache Portals Velocity Portlet Bridge sub project documentation.
An example of the Velocity Bridge usage within Jetspeed 2 is:
The Portals Bridges project provides a Portlet bridge for Perl applications. Please visit the Apache Portals Perl Portlet Bridge sub project documentation.
The Portals Bridges project provides a Portlet bridge for PHP applications. Please visit the Apache Portals PHP Portlet Bridge sub project documentation.