public LocalIncomingServerSession removeIncomingServerSessions(StreamID streamID) {
        return incomingServerSessions.remove(streamID);
    }
Finds a client session for the provided address that has been established, but has not yet authenticated. This
method returns null if no such session can be found.

Pre-authenticated sessions aren't assigned a user-resolvable address (as no user has been authenticated). As such
the address associated with such sessions are JIDs that have a domain and resource-part, but no local-part. This
address is assigned by Openfire to a unique value, that is not expected to be known to the client.

@param address The address for which to find a pre-authenticated session (must not have a local-part).
@return the matching session if one is found, otherwise null.
xmppserver/src/main/java/org/jivesoftware/openfire/LocalSessionManager.java