gistfile1.java

public static Serializable doPost(String url, Serializable object) throws Exception {
        String contentType = HttpInvokerService.REMOTE_INVOCATION_CONTENT_TYPE + ";charset=" + ENCODING;
        HttpTester request = getInstance().getRequest(url);
        request.setMethod("POST");
        request.setHeader("Content-Type", contentType);
        
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(baos);
        oos.writeObject(object);
        oos.close();
        
        byte[] oBytes = baos.toByteArray();
        
        request.setContent(new String(oBytes, ENCODING));
        String rawRequest = request.generate();
        
        int i = rawRequest.indexOf("\r\n\r\n");
        rawRequest = rawRequest.substring(0, i+4);
        
        byte[] allBytes = ArrayUtils.addAll(rawRequest.getBytes(ENCODING), oBytes);
        ByteArrayBuffer responseBuffer = tester.getResponses(new ByteArrayBuffer(allBytes));
        HttpTester response = new HttpTester();
        response.parse(responseBuffer.toString());
        parseCookies(response);
        
        byte[] array = responseBuffer.asArray();
        int offset = 0;
        
        for (i = 0; i < array.length; i++) {
                // Start of content ("\r\n\r\n")
                if (array[i] == 13 && array[i + 1] == 10 && array[i + 2] == 13 && array[i + 3] == 10) {
                        offset = i + 4;
                        break;
                }
        }
        
        byte[] range = Arrays.copyOfRange(array, offset, array.length);

        return (Serializable) new ObjectInputStream(new ByteArrayInputStream(range)).readObject();
    }