@Nullable
  private static @NlsSafe String getAttributeValue(AntDomElement element, final @NonNls String attributeName) {
    final DomAttributeChildDescription description = element.getGenericInfo().getAttributeChildDescription(attributeName);
    if (description == null) {
      return null;
    }
    return description.getDomAttributeValue(element).getStringValue();
  }
@Nullable
  private static @NlsSafe String getAttributeValue(AntDomElement element, final @NonNls String attributeName)