How to resolve "HTTP Error 411. The request must be chunked or have a content length." in java

Question

I am using HttpConnect and trying to get some token from the server. But whenever I try to get the response, its always saying you have not set or problem with content length even I tried to set the content length in many different ways

conn = (HttpURLConnection) new URL(url).openConnection();
conn.setRequestMethod(method);
conn.setRequestProperty("X-DocuSign-Authentication", httpAuthHeader);
conn.setRequestProperty("Accept", "application/json");
if (method.equalsIgnoreCase("POST")) {
  conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
  conn.setRequestProperty("Content-Length", Integer.toString(body.length()));
            conn.setDoOutput(true);
}


status = conn.getResponseCode(); // triggers the request
if (status != 200) { //// 200 = OK 
    errorParse(conn, status);
    return;
}

InputStream is = conn.getInputStream();

Answer 1

You're setting a content-length but never sending a request body.

Don't set the content-length. Java does it for you.

NB setDoOutput(true) sets the method to POST.