Java bluetooth picture problem Logic error

//POSIBLE LOGIC ERRORS COULD BE IN THE FOLLOWING CODE
public void serviceSearchCompleted(int i, int i0) {
        String message = "";
        switch(i0){
            case DiscoveryListener.SERVICE_SEARCH_COMPLETED:
                //Inquiry is complete, start the client
                if(sr != null){
                    devices.setTitle("sending picture...");
                    handle = new ClientHandle();
                    return;
                }
              case DiscoveryListener.SERVICE_SEARCH_NO_RECORDS:
               message = "don't find any record";
                break;
            default:
                break;
        }
        devices.setTitle("no service");
        Alert a = BTMIDlet.getAlert(message,AlertType.INFO,2000);
        Display.getDisplay(midlet).setCurrent(a);
 

 public void commandAction(Command command, Displayable displayable) {
        if(command.getCommandType() == Command.BACK){
            //Return
        }
        if(command == List.SELECT_COMMAND){
            int i = devices.getSelectedIndex();
            UUID[] uuids = new UUID[1];
            uuids[0] = new UUID(0x0001);
            try {
                //Query services on the specified device
                devices.setTitle("looking for services...");
                bt.getDiscoveryAgent().searchServices(null,uuids,(RemoteDevice)deviceVector.elementAt(i),this);
            } catch (BluetoothStateException ex) {
                ex.printStackTrace();
                showException(ex);
            }
        }
    }
 
 public void run(){
            //Connect to the server
            String url = sr.getConnectionURL(ServiceRecord.NOAUTHENTICATE_NOENCRYPT,false);
            int i = url.indexOf(":");
            String protocol = url.substring(0,i);
            //According to different protocols, different ways to send data
            if(protocol.equals("btspp")){
                StreamConnection conn = null;
                try {
                    //Stream connection to send a relatively simple
                    conn = (StreamConnection)Connector.open(url);
                    OutputStream os = conn.openOutputStream();
                    os.write(midlet.getImage());
                    os.flush();
                    os.close();
                    conn.close();
                    
                } catch (IOException ex) {
                    ex.printStackTrace();
                }
            }else if(protocol.equals("btl2cap")){
                L2CAPConnection conn = null;
                try{
                    conn = (L2CAPConnection)Connector.open(url);
                    //L2CAPConnection Is a connection-oriented, need to consider MTU
                    int max = conn.getTransmitMTU();
                    byte[] img = midlet.getImage();
                    byte[] buffer = new byte[max];
                    int index = 0;
                    //Each time you send a data buffer, and no more than MTU
                    while(index <img.length){
                        //Length less than max, you need to send the interception of part of the
                        if(img.length - index<max){>
                            buffer = new byte[img.length-index];
                            System.arraycopy(img,index,buffer,0,img.length-index);
                        }else{
                            System.arraycopy(img,index,buffer,0,max);
                        }
                        conn.send(buffer);
                        index+=max;
                    }
                   conn.close();
                } catch (Exception ex) {
                    showException(ex);
                }
            }
        }
    }
}