public void process(
     IncomingMessageEnvelope envelope, MessageCollector collector, TaskCoordinator coordinator) {
   System.out.println(
       "Adding " + envelope.getMessage() + " => " + envelope.getMessage() + " to the store.");
   store.put((String) envelope.getMessage(), (String) envelope.getMessage());
   coordinator.commit(RequestScope.ALL_TASKS_IN_CONTAINER);
 }