code: public String[] prepareStandaloneLogon ()
      {
          _standalone = true;
          // notify our observers immediately
          _observers.apply(new ObserverOps.Session(this) {
              @Override protected void notify (SessionObserver obs) {
                  obs.clientWillLogon(_client);
              }
          });
          return getBootGroups();
      }
docs: Prepares the client for a standalone mode logon. Returns the set of bootstrap service groups
  that should be supplied to the invocation manager to create our fake bootstrap record.