you can set the cache in the portlet.xml (descriptor of the portlet). unfortunately, if you don't want to remove the cache feature for all request, but just in a few cases (as in your scenario), there is no way to do that. That's what I know for now, and concerning the JSR-168. I am looking at how to invalidate the cache for a special portlet, at a given time (and programmatically)... I guess that can be done with specific implementation of cache for the jboss portal. hope that helps... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4003223#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...