docs: private void signalNoConnections() {
          EventEngine events = _commsServerFacade.getEventEngine();
          if (null == events) {
              if (TraceComponent.isAnyTracingEnabled() && tc.isEventEnabled()) {
                  SibTr.event(tc, "Unable to send event, missing service");
              }
              return;
          }
          if (TraceComponent.isAnyTracingEnabled() && tc.isEventEnabled()) {
              SibTr.event(tc, "No active connections, sending stop chain event");
          }
          Event event = events.createEvent(ChannelFramework.EVENT_STOPCHAIN);
          event.setProperty(ChannelFramework.EVENT_CHANNELNAME, _cfw.getChannel(_jfapName).getExternalName());
          events.postEvent(event);
      }