This week's book giveaway is in the Java 9 forum. We're giving away four copies of Java 9 Modularity: Patterns and Practices for Developing Maintainable Applications and have Sander Mak & Paul Bakker on-line! See this thread for details.
Is there some kind of "beforeLoad/Render" mechanism in portlets, whereby you can receive a request, check credentials, and either continue loading portlet, or redirecting the user somewhere else, like a login page ??