private static @NotNull XmlFileHeader parseHeader(final MyXMLReader r) {
    final RootTagInfoBuilder builder = new RootTagInfoBuilder();
    parse(r, builder);
    return new XmlFileHeader(builder.getRootTagName(), builder.getNamespace(), r.publicId, r.systemId);
  }
private static @NotNull XmlFileHeader parseHeader(final MyXMLReader r)