Netty 4.1.55版本文件上传参数接受时死循环 cpu100%的bug记录

new HttpPostRequestDecoder(request)

private static int findDelimiter(ByteBuf undecodedChunk, String delimiter, int offset) {
        ....
        while (delimiterNotFound && newOffset + delimeterLength <= toRead) {

private Map<String, String> getParamMap(ChannelHandlerContext ctx, FullHttpRequest request) throws IOException, TipException {
        Map<String, String> paramMap = new HashMap<>();
        paramMap.put("url", StrUtil.subBefore(request.uri(), "?", false));
        if (HttpMethod.GET == request.method()) {
            try {
                QueryStringDecoder decoder = new QueryStringDecoder(request.uri());
                decoder.parameters().forEach((k, v) -> paramMap.put(k, v.get(0)));
            } catch (Exception e) {
                log.error(request.uri() + " 解析参数出错");
                throw new ParamErrorException();
            }
        } else if (HttpMethod.POST == request.method()) {
            final String contentType = request.headers().get(HttpHeaderNames.CONTENT_TYPE);
            if (StrUtil.equals(HttpHeaderValues.APPLICATION_JSON, contentType)) {
                String json = request.content().toString(Charsets.toCharset(CharEncoding.UTF_8));
                try {
                    Map<String, String> map = JsonUtil.fromJson(json, JsonUtil.getMapType(String.class, String.class));
                    if (map != null) {
                        paramMap.putAll(map);
                    }
                } catch (Exception e) {
                    log.error(request.uri() + " 解析参数出错:" + json);
                    throw new ParamErrorException();
                }
            } else {
                HttpPostRequestDecoder decoder = new HttpPostRequestDecoder(request);
                List<InterfaceHttpData> httpPostData = decoder.getBodyHttpDatas();
                for (InterfaceHttpData data : httpPostData) {
                    if (data.getHttpDataType() == InterfaceHttpData.HttpDataType.Attribute) {
                        Attribute attribute = (Attribute) data;
                        paramMap.put(attribute.getName(), attribute.getValue());
                    } else if (data.getHttpDataType() == InterfaceHttpData.HttpDataType.FileUpload) {
                        final FileUpload fileUpload = (FileUpload) data;
                        //这里处理文件参数逻辑
                    }
                }
            }
        } else {
            throw new TipException("不支持的请求方法");
        }
        return paramMap;