@Override
    public JpsSimpleElement<JpsMavenRepositoryLibraryDescriptor> loadProperties(@Nullable Element elem, @NotNull JpsPathMapper pathMapper) {
      return JpsElementFactory.getInstance().createSimpleElement(loadDescriptor(elem, pathMapper));
    }
@Override
    public JpsSimpleElement<JpsMavenRepositoryLibraryDescriptor> loadProperties(@Nullable Element elem, @NotNull JpsPathMapper pathMapper)