public PoolStatHelper getWaitingPoolHelper() {
    return new PoolStatHelper() {
      @Override
      public void startJob() {
        incWaitingPoolThreadJobs(1);
      }

      @Override
      public void endJob() {
        incWaitingPoolThreadJobs(-1);
      }
    };
  }
Returns a helper object so that the waiting pool can record its stats to the proper
distribution stats.

@since GemFire 3.5
geode-core/src/main/java/org/apache/geode/distributed/internal/DistributionStats.java