Run the following code snippet in multiple by calling a somewhat slow endpoint and if you comment out line 19-23 then you will observe IOException:Broken pipe

BrokenPipeException

private static void makeGetCall(URL url) throws IOException {
        //make connection
        HttpURLConnection myURLConnection = (HttpURLConnection) url.openConnection();
        myURLConnection.setRequestProperty("Authorization", "token/whatever");
        myURLConnection.setRequestMethod("GET");
        myURLConnection.setRequestProperty("Content-Type", "application/json");
        myURLConnection.setRequestProperty("User-Agent", "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0)");
        myURLConnection.setRequestProperty("Content-Language", "en-US");
        myURLConnection.setUseCaches(false);
        myURLConnection.setDoInput(true);
        myURLConnection.setDoOutput(true);
        myURLConnection.setAllowUserInteraction(false);
        
        //get result
        BufferedReader br = new BufferedReader(new InputStreamReader(myURLConnection.getInputStream()));
        String line;
        StringBuffer response = new StringBuffer();
        // Uncommenting the following lines would not result in Broken pipe exception.
//        if (true) {
//            while ((line = br.readLine()) != null) {
//                response.append(line);
//            }
//        }
        br.close();
    }