hutool | A set of tools that keep Java sweet | REST library

    @Override
    public Map getParameterMap() {
        Map parameters = super.getParameterMap();
        LinkedHashMap map = new LinkedHashMap<>();
        if (parameters != null) {
            map = parameters.entrySet().stream().collect(Collectors.toMap(
                    Map.Entry::getKey,
                    v -> Arrays.stream(v.getValue())
                            .filter(val -> !StrUtil.hasEmpty(val))
                            .map(HtmlUtil::filter).collect(Collectors.toList()).toArray(new String[0]),
                    (x, y) -> y, LinkedHashMap::new
            ));
        }
        return map;
    }