}

    public abstract void handleInvalidValue(String value, String hint);

    public void handleInvalidValue(String value) {
        handleInvalidValue(value, null);
    }

    String hintMessage(String hint) {
        if (TextUtil.isBlank(hint)) {
            return "";
        }
        return String.format(" (%s)", hint);
    }

    private static class GradlePropertyOrigin extends Origin {