docs: public void rollbackPool() {
          if (newTopicPool == null || newTopicPool.isEmpty()) return;
          final List<Integer> topicIds = new ArrayList<Integer>();
          for (final TopicWrapper topic : newTopicPool.getItems()) {
              topicIds.add(topic.getTopicId());
          }
          try {
              topicProvider.deleteTopics(topicIds);
              initialised = false;
          } catch (Exception e) {
              log.error("An error occurred while trying to rollback the Topic Pool", e);
          }
  
      }