public boolean removePreAuthenticatedSession(@Nonnull final LocalClientSession session) {
        return preAuthenticatedSessions.remove(session.getStreamID(), session);
    }
Unregisters a client session as a session that has been established, but has not been authenticated yet.

@param session The session to unregister as a pre-authenticated session.
xmppserver/src/main/java/org/jivesoftware/openfire/LocalSessionManager.java