docs: protected static void buildSignatureValidationFilterIfNeeded(final SamlRegisteredService service,
                                                                   final List<MetadataFilter> metadataFilterList,
                                                                   final Resource metadataSignatureResource) throws Exception {
          val signatureValidationFilter = SamlUtils.buildSignatureValidationFilter(metadataSignatureResource);
          addSignatureValidationFilterIfNeeded(service, signatureValidationFilter, metadataFilterList);
      }