@Override
    public Set<String> resolveUserInfoRequestClaims(final WebContext context) throws Exception {
        val requestedClaims = resolveRequestClaims(context);
        return requestedClaims.getOrDefault(OAuth20Constants.CLAIMS_USERINFO, new HashMap<>()).keySet();
    }
This is {@link DefaultOAuth20RequestParameterResolver}.

@author Misagh Moayyed
@since 6.6.0
support/cas-server-support-oauth-core-api/src/main/java/org/apereo/cas/support/oauth/web/DefaultOAuth20RequestParameterResolver.java