code: protected void deactivateConsumers(List<ConsumerHolder> consumerHolders) {
          synchronized (activationMonitor) {
              for (ConsumerHolder consumerHolder : consumerHolders) {
                  consumerHolder.deactivate();
              }
          }
      }
docs: Deactivates all consumers in the given list.
  
  @param consumerHolders The list of consumers to deactivate.