docs: @Override
      public List getSubscriptionList()
                      throws
                      SIResourceException
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(tc, "getSubscriptionList");
  
          List subscriptions = _pubSubRealization.getSubscriptionList();
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(tc, "getSubscriptionList", subscriptions);
          return subscriptions;
      }