code: public synchronized int getDurableSubscriptions()
    {
      if (tc.isEntryEnabled())
        SibTr.entry(tc, "getDurableSubscriptions");
  
      if (tc.isEntryEnabled())
        SibTr.exit(
          tc,
          "getDurableSubscriptions",
          new Integer(durableSubscriptions));
  
      return durableSubscriptions;
    }
docs: Get number of durable subscriptions.
  
  @return number of durable subscriptions.