private static boolean noDefaultPropertyError(@NotNull BiConsumer<? super String, ? super Validator.ValidationHost.ErrorType> messageConsumer) {
    messageConsumer.accept("Parent tag has no default property",
                           Validator.ValidationHost.ErrorType.ERROR);
    return false;
  }
private static boolean noDefaultPropertyError(@NotNull BiConsumer<? super String, ? super Validator.ValidationHost.ErrorType> messageConsumer)