Java EE authentication and authorization is more powerful and easier to use than expected. The recent Java Magazine article Secure Java EE Authentication covers Java EE security principles, dynamic and static authentication, as well as extension possibilities.
See also wisdomator--a companion, maven 3 sample application.
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Btw. there is also an Java Magazine iOS App.
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NEW MUC Airport Workshop: Migrating Java Client (Swing / Java FX) to Web Standards