@Override
    public boolean supports(final SingleSignOnParticipationRequest ssoRequest) {
        return providers.stream().anyMatch(p -> p.supports(ssoRequest));
    }
Add providers.

@param provider the provider
core/cas-server-core-webflow-api/src/main/java/org/apereo/cas/web/flow/ChainingSingleSignOnParticipationStrategy.java