code: public void shutdown ()
      {
          // shut down all active places
          for (Iterator<PlaceManager> iter = enumeratePlaceManagers(); iter.hasNext(); ) {
              PlaceManager pmgr = iter.next();
              try {
                  pmgr.shutdown();
              } catch (Exception e) {
                  log.warning("Place manager failed shutting down", "where", pmgr.where(), e);
              }
          }
      }
docs: from interface Lifecycle.ShutdownComponent