code: private Path getVersionRoot(String version) throws VersionDoesNotExistException {
  
      try {
        return this.versions.get(version, new VersionRootLoader(version));
      } catch (ExecutionException e) {
        throw new RuntimeException(
            String.format("Error while checking if version \"%s\" for store \"%s\" exists", version, getStoreURI()), e);
      }
    }
docs: Constructs a {@link Path} that points to the location of the given version of the {@link ConfigStore} on HDFS. If
  this {@link Path} does not exist, a {@link VersionDoesNotExistException} is thrown.