src/main/java/com/authlete/jaxrs/AuthorizationPageModel.java
private static String computeLoginId(AuthorizationResponse info)
    {
        if (info.getSubject() != null)
        {
            return info.getSubject();
        }

        return info.getLoginHint();
    }
private static String computeLoginId(AuthorizationResponse info)
    {
        if (info.getSubject() != null)
        {
            return info.getSubject();
        }

        return info.getLoginHint();
    }
Compute the initial value for the login ID field in the
authorization page.