docs: protected RoleDescriptorResolver getRoleDescriptorResolver(final MetadataResolver resolver,
                                                                 final MessageContext context,
                                                                 final RequestAbstractType profileRequest) throws Exception {
          val idp = casProperties.getAuthn().getSamlIdp();
          return SamlIdPUtils.getRoleDescriptorResolver(resolver, idp.getMetadata().isRequireValidMetadata());
      }