code: protected void processAuthedConnections (long iterStamp)
      {
          AuthingConnection conn;
          while ((conn = _authq.getNonBlocking()) != null) {
              try {
                  // construct a new running connection to handle this connections network traffic
                  // from here on out
                  PresentsConnection rconn = new PresentsConnection();
                  rconn.init(this, conn.getChannel(), iterStamp);
                  rconn.selkey = conn.selkey;
  
                  // we need to keep using the same object input and output streams from the
                  // beginning of the session because they have context that needs to be preserved
                  rconn.inheritStreams(conn);
  
                  // replace the mapping in the handlers table from the old conn with the new one
                  _handlers.put(rconn.selkey, rconn);
  
                  // add a mapping for the connection id and set the datagram secret
                  _connections.put(rconn.getConnectionId(), rconn);
                  rconn.setDatagramSecret(conn.getAuthRequest().getCredentials().getDatagramSecret());
  
                  // transfer any overflow queue for that connection
                  OverflowQueue oflowHandler = _oflowqs.remove(conn);
                  if (oflowHandler != null) {
                      _oflowqs.put(rconn, oflowHandler);
                  }
  
                  // and let the client manager know about our new connection
                  _clmgr.connectionEstablished(rconn, conn.getAuthName(), conn.getAuthRequest(),
                                               conn.getAuthResponse());
  
              } catch (IOException ioe) {
                  log.warning("Failure upgrading authing connection to running.", ioe);
              }
          }
      }
docs: Converts connections that have completed the authentication process into full running
  connections and notifies the client manager that new connections have been established.