private Map<Integer, V> fetchInputDataFromIndex(int inputId) throws IOException {
    try {
      return ProgressManager.getInstance().computeInNonCancelableSection(() -> myIndex.getValue().getIndexedFileData(inputId));
    }
    catch (StorageException e) {
      throw new IOException(e);
    }
  }
private Map<Integer, V> fetchInputDataFromIndex(int inputId)