protected JwtClaims getClaims(final String clientId) {
        return getClaims("casuser", casProperties.getAuthn().getOidc().getCore().getIssuer(), clientId, clientId);
    }
This is {@link AbstractOidcTests}.

@author Misagh Moayyed
@since 5.3.0
support/cas-server-support-oidc/src/test/java/org/apereo/cas/oidc/AbstractOidcTests.java