void addBody(HttpURLConnection conn, byte[] content) throws IOException { conn.setRequestProperty(CONTENT_LENGTH, String.valueOf(content.length)); // Set default content type if none is set. if (conn.getRequestProperty(CONTENT_TYPE) == null) { conn.setRequestProperty(CONTENT_TYPE, DEFAULT_CONTENT_TYPE); } conn.setDoOutput(true); conn.getOutputStream().write(content); }