docs: @Reference(name = KEY_MESSAGE_STORE, service = MessageStore.class)
      protected void setMessageStore(ServiceReference<MessageStore> ref) {
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled())
              SibTr.entry(tc, "setMessageStore", ref);
          messageStoreRef.setReference(ref);
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled())
              SibTr.exit(tc, "setMessageStore");
      }