Multiple steps are required to retrieve collection with all current authenticated users logged into the web application. Unfortunately these steps are not well documented. Trivial task to display all current active users cannot achieved easily.
- make session-management / concurrency-control attribute not mandatory to collect SessionRegistryImpl.registerNewSession()
- provide documentation with sample Java code (and required entries in web.xml & applicationContext.xml) how to retrieve collection SessionRegistry.getAllPrincipals()