code: public boolean isInMatchSpace()
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
          {
              SibTr.entry(tc, "isInMatchSpace");
              SibTr.exit(tc, "isInMatchSpace", Boolean.valueOf(isInMatchSpace));
          }
  
          return isInMatchSpace;
      }
docs: Indicates whether a subscription associated with the ConsumerDispatcher has
  been stored in the MatchSpace.
  
  @return isInMatchSpace