@Override
  public void handleCacheClose(SystemMemberCacheEvent event) {
    Helper.sendNotification(this, new Notification(NOTIF_CACHE_CLOSED, modelMBean,
        Helper.getNextNotificationSequenceNumber(), Helper.getCacheEventDetails(event)));
  }
Implementation handles closure of cache by extracting the details from the given event object
and sending the {@link SystemMemberJmx#NOTIF_CACHE_CLOSED} notification to the connected JMX
Clients.

@param event event object corresponding to the closure of the cache
geode-core/src/main/java/org/apache/geode/admin/jmx/internal/SystemMemberJmxImpl.java