Bit-Torrent跟踪器请求问题

Question

在我正在研究的项目中，我需要连接到跟踪器URL并获取当前的对等方列表。但是，我认为我当前正在以错误的格式发送info_hash，导致服务器关闭了我的连接。

public void sendConnectionRequest() {
        byte[] b = new byte[20];
        new Random().nextBytes(b);
        shaPieces = Base64.getEncoder().encodeToString(
                shaPieces.getBytes(StandardCharsets.UTF_8));
        try {
            HttpGet request = new HttpGet(announceURL);
            URI uri = new URIBuilder(request.getURI())
                    .setParameter("info_hash", shaPieces)
                    .setParameter("peer_id", b.toString())
                    .setParameter("port", "6910")
                    .setParameter("uploaded", "0")
                    .setParameter("downloaded", "0")
                    .setParameter("left", "670040064")
                    .setParameter("compact", "1")
                    .setParameter("event", "started")
                    .build();
            request.setURI(uri);
            CloseableHttpClient httpClient = HttpClients.createDefault();
            CloseableHttpResponse response = httpClient.execute(request);
            InputStream input = response.getEntity().getContent();
            Scanner inputStream = new Scanner(input);
            String content = "";
            while (inputStream.hasNextLine()) {
                content += inputStream.nextLine();
            }
            System.out.println(content);

        } catch (URISyntaxException | ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    } 

这是我收到的错误：

Dec 16, 2019 3:25:19 PM org.apache.http.impl.execchain.RetryExec execute
INFO: I/O exception (java.net.SocketException) caught when processing request to {}->http://tracker.archlinux.org:6969: Connection reset by peer: socket write error
Dec 16, 2019 3:25:19 PM org.apache.http.impl.execchain.RetryExec execute

这是我尝试从.torrent文件转换信息哈希的方法：

shaPieces = DigestUtils.shaHex((String) fileInfo.get("pieces"));

最后，这是我在参数中使用的sha1哈希（转换后）：

6363296ae1518d978fc30cdef14803bac6e77cc0

谢谢！