for string values just use: PortletURL url = response.createActionURL(); | url.setParameter(?paymentMethod?,?creditCardInProfile?); I'm not sure in which order you want to pass those objects. If render --> action Your concerns are correct. Render phase for a portlet can be triggered multiply times with unpredictable order beetween portlets on the same page and you have no influence on this. If action --> render You simply use ActionRequest.setAttribute(), RenderRequest.getAttribute() or ActionRequest.setRenderParameter() which is better practice than using a session View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3958877#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...