f.setAccessible(true);
            return f.get(target);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    private static void setField(Object target, String name, Object value) {
        try {
            var f = target.getClass().getDeclaredField(name);
            f.setAccessible(true);
            f.set(target, value);

                    if (source != null) {
                        docMap.putAll(source);
                    }
                    final Map<String, DocumentField> fields = hit.getFields();
                    if (fields != null) {
                        docMap.putAll(fields.entrySet()
                                .stream()

                docMap.put(fessConfig.getIndexFieldPrimaryTerm(), hit.getPrimaryTerm());
                return docMap;
            }
            final Map<String, DocumentField> fields = hit.getFields();
            if (fields != null) {
                final Map<String, Object> docMap = fields.entrySet()
                        .stream()