code: public void finalizeConfiguration() {
          for (ConfigItem type : disabledItemsHolder.keys()) {
              for (Class<?> item : disabledItemsHolder.get(type)) {
                  final DisableSupport info = getOrCreateInfo(type, item);
                  info.getDisabledBy().addAll(disabledByHolder.get(getType(item)));
              }
          }
      }
docs: Called when context configuration is finished (but extensions installation is not finished yet).
  Merges disabled items configuration with registered items or creates new items to hold disable info.