@Override
  public @NotNull List<JpsLibraryRoot> getRoots(@NotNull JpsOrderRootType rootType) {
    final JpsElementCollection<JpsLibraryRoot> rootsCollection = myContainer.getChild(getRole(rootType));
    return rootsCollection != null ? rootsCollection.getElements() : Collections.emptyList();
  }
@Override
  public @NotNull List<JpsLibraryRoot> getRoots(@NotNull JpsOrderRootType rootType)