data.register(key, BeanUtil.copyBeanToNewMap(value));
        } else {
            if ((value instanceof final Collection<?> coll) && !coll.isEmpty()) {
                // care performance for List that the most frequent pattern
                final Object first = coll instanceof List<?> ? ((List<?>) coll).get(0) : coll.iterator().next();
                if (first instanceof Entity) {

        return buf.toString();
    }

    protected void sendToGoogleChat(final CardView cardView, final SMailPostingDiscloser discloser) {
        // https://developers.google.com/hangouts/chat/how-tos/webhooks
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String googleChatWebhookUrls = fessConfig.getGoogleChatWebhookUrls();
        if (StringUtil.isBlank(googleChatWebhookUrls)) {

            writer.accept("Thread: " + entry.getKey());
            final StackTraceElement[] trace = entry.getValue();
            for (final StackTraceElement element : trace) {
                writer.accept("\tat " + element);
            }
        }
    }

                + facetResponse + "]";
    }

    static class SearchResultBuilder {

        private long allRecordCount;
        private String allRecordCountRelation = Relation.GREATER_THAN_OR_EQUAL_TO.toString();
        private long queryTime;
        private boolean partialResults;
        private FacetResponse facetResponse;
        private final List<Map<String, Object>> documentList = new ArrayList<>();