code: public int getProducerCount() {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(this, tc, "getProducerCount");
          int producerCount = producers.size();
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(this, tc, "getProducerCount", producerCount);
          return producerCount;
      }
docs: Return a count of the number of Producers currently open on this Session.