protected String[] getPrincipalIdFromSamlEcpFault(final Fault fault) {
        val values = new HashMap<>();
        values.put("actor", fault.getActor().getURI());
        values.put("message", fault.getMessage().getValue());
        return new String[]{auditFormat.serialize(values)};
    }
This is {@link SamlResponseAuditResourceResolver}.

@author Misagh Moayyed
@since 5.3.0
support/cas-server-support-saml-idp-web/src/main/java/org/apereo/cas/support/saml/web/idp/audit/SamlResponseAuditResourceResolver.java