.forEach(e -> map.put(e.getKey().toLowerCase(Locale.ROOT), e.getValue()));
            this.headers = map;
        }
    }

    public Map<String, List<String>> getHeaders() {
        return headers;
    }

    public String[] getHeaderValues(final String name) {
        final List<String> list = headers.get(name.toLowerCase(Locale.ROOT));
        if (list == null) {