Source:
final static void serializeToUrlConnection( GraphRequestBatch requests, HttpURLConnection connection ) throws IOException, JSONException { Logger logger = new Logger(LoggingBehavior.REQUESTS, "Request"); int numRequests = requests.size(); boolean shouldUseGzip = isGzipCompressible(requests); HttpMethod connectionHttpMethod = (numRequests == 1) ? requests.get(0).httpMethod : HttpMethod.POST; connection.setRequestMethod(connectionHttpMethod.name()); setConnectionContentType(connection, shouldUseGzip); URL url = connection.getURL(); logger.append("Request:\n"); logger.appendKeyValue("Id", requests.getId()); logger.appendKeyValue("URL", url); logger.appendKeyValue("Method", connection.getRequestMethod()); logger.appendKeyValue("User-Agent", connection.getRequestProperty("User-Agent")); logger.appendKeyValue("Content-Type", connection.getRequestProperty("Content-Type")); connection.setConnectTimeout(requests.getTimeout()); connection.setReadTimeout(requests.getTimeout()); boolean isPost = (connectionHttpMethod == HttpMethod.POST); if (!isPost) { logger.log(); return; } connection.setDoOutput(true); OutputStream outputStream = null; try { outputStream = connection.getOutputStream(); outputStream = new BufferedOutputStream(outputStream); if (shouldUseGzip) { outputStream = new GZIPOutputStream(outputStream); } if (hasOnProgressCallbacks(requests)) { ProgressNoopOutputStream countingStream = null; countingStream = new ProgressNoopOutputStream(requests.getCallbackHandler()); processRequest(requests, null, numRequests, url, countingStream, shouldUseGzip); int max = countingStream.getMaxProgress(); Map<GraphRequest, RequestProgress> progressMap = countingStream.getProgressMap(); outputStream = new ProgressOutputStream(outputStream, requests, progressMap, max); } processRequest(requests, logger, numRequests, url, outputStream, shouldUseGzip); } finally { if (outputStream != null) { outputStream.close(); } } logger.log(); }

Target:
final static void serializeToUrlConnection( GraphRequestBatch requests, HttpURLConnection connection ) throws IOException, JSONException { Logger logger = new Logger(LoggingBehavior.REQUESTS, "Request"); int numRequests = requests.size(); boolean shouldUseGzip = isGzipCompressible(requests); HttpMethod connectionHttpMethod = (numRequests == 1) ? requests.get(0).httpMethod : HttpMethod.POST; connection.setRequestMethod(connectionHttpMethod.name()); setConnectionContentType(connection, shouldUseGzip); URL url = connection.getURL(); logger.append("Request:\n"); logger.appendKeyValue("Id", requests.getId()); logger.appendKeyValue("URL", url); logger.appendKeyValue("Method", connection.getRequestMethod()); logger.appendKeyValue("User-Agent", connection.getRequestProperty("User-Agent")); logger.appendKeyValue("Content-Type", connection.getRequestProperty("Content-Type")); connection.setConnectTimeout(requests.getTimeout()); connection.setReadTimeout(requests.getTimeout()); boolean isPost = (connectionHttpMethod == HttpMethod.POST); if (!isPost) { logger.log(); return; } connection.setDoOutput(true); OutputStream outputStream = null; try { outputStream = new BufferedOutputStream(connection.getOutputStream()); if (shouldUseGzip) { outputStream = new GZIPOutputStream(outputStream); } if (hasOnProgressCallbacks(requests)) { ProgressNoopOutputStream countingStream = null; countingStream = new ProgressNoopOutputStream(requests.getCallbackHandler()); processRequest(requests, null, numRequests, url, countingStream, shouldUseGzip); int max = countingStream.getMaxProgress(); Map<GraphRequest, RequestProgress> progressMap = countingStream.getProgressMap(); outputStream = new ProgressOutputStream(outputStream, requests, progressMap, max); } processRequest(requests, logger, numRequests, url, outputStream, shouldUseGzip); } finally { if (outputStream != null) { outputStream.close(); } } logger.log(); }