Ok, I've found a way to do this myself. I have a JSF portlet with several pages. When accesing a page, I put it's name into HttpServletSession. Then in class org.jboss.portal.core.command.InvokeWindowRenderCommand.java I get this parameter from session and so choose a window state in which the current page should be displayed. That works perfectly except the case when I switch this way from MAXIMIZED state to any others. The blank space is displayed instead of my JSF portlet. But when I click the Refresh button of my browser, the window is displayed correctly. How could this be fixed? Thanx, Alexander. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3971960#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...