With a few lines of code you can expose a custom principal and fetch entitlements from whatever store you like.
External libraries become obsolete and your WAR stays leaner:
[See also an in-depth discussion in the "Real World Java EE Patterns--Rethinking Best Practices" book (Second Iteration, "Green Book"), page 161 (Sample "Principal Enricher") in, chapter "Re-Injector"]
See also other screencasts at: http://tv.adam-bien.com or subscribe to http://www.youtube.com/user/bienadam.
See you at Java EE Workshops at MUC Airport, particularly at the Effective JavaEE workshop!
NEW: Online Workhop Effective WebApps without Frameworks is also coming to: MUC Airport.
Airport MUC workshops: Web (SPA, PWAs, Offline, Desktop, Mobile) Applications Essentials and Effective Web Applications. No migrations. #usetheplatform
Podcast: airhacks.fm and newsletter: airhacks.news
A book about rethinking Java EE Patterns