protected boolean isAuthenticationMethodSupported(final CallContext ctx, final OAuthRegisteredService registeredService) {
        return OAuth20Utils.isTokenAuthenticationMethodSupportedFor(ctx, registeredService, OAuth20ClientAuthenticationMethods.TLS_CLIENT_AUTH);
    }
This is {@link OAuth20X509Authenticator}.

@author Misagh Moayyed
@since 7.0.0
support/cas-server-support-oauth-core-api/src/main/java/org/apereo/cas/support/oauth/authenticator/OAuth20X509Authenticator.java