bais = new ByteArrayInputStream(theFile);
din = new DataInputStream(bais);
utilsFlex = new UtilsFlexMessage();
utilsFlex.parseInputStream(din);
update = utilsFlex.updateFlexMessage(oldPickupItem, pickupItem);
newdataPickupItem = utilsFlex.serializeMessage(update);
//new Connection to pickup ItemCollection
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Connection", "keep-alive");
connection.setRequestProperty("Content-Type", contentType);