docs: public LockManager getSubscriptionLockManager()
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
          {
              SibTr.entry(tc, "getSubscriptionLockManager");
              SibTr.exit(tc, "getSubscriptionLockManager", _subscriptionLockManager);
          }
          return _subscriptionLockManager;
      }