🚀 go-pugleaf

Ik heb het kunnen oplossen, maar nu zit ik met een ander probleem:
Wanneer ik meerdere files selecteer om te backuppen naar mijn server, 
schrijft hij enkel de eerste file weg, daarna hangt de applicatie vast en 
wordt er geen verdere code uitgevoerd.
Hieronder mijn code:

CLIENT-code
----------------
    private void btnBackupActionPerformed(java.awt.event.ActionEvent evt) {

        for (File f:backupfileslist) {

            try{

                client.sendMessage("Make Backup");
                System.out.println(f);

                String remoteFilename = f.getAbsolutePath();
                String localFilename = f.getAbsolutePath();
                InputStream socketIn = client.getLink().getInputStream();
                DataOutputStream socketOut = new 
DataOutputStream(client.getLink().getOutputStream());
                FileInputStream fis = new FileInputStream(localFilename);

                //writethe filename
                socketOut.writeUTF(remoteFilename);

                int bytesRead;
                byte[] buffer = new byte[3000];


              // write out the file
                while((bytesRead = fis.read(buffer, 0, buffer.length)) >= 0) 
{
                    socketOut.write(buffer, 0, bytesRead);
                    socketOut.flush();
                }

                fis.close();

            } catch (FileNotFoundException ex) {
                ex.printStackTrace();

            } catch (IOException ioe){
                ioe.printStackTrace();
            }
        }

    }


SERVER-code
-----------------

    public void checkMessage(String sMessage) {

        if (sMessage.startsWith("Make Backup")){

            try{

                // for reading the filename
                socketIn = new 
DataInputStream(clientSocket.getInputStream());

                //read the filename
                String filename = socketIn.readUTF();
                String remotefilename = filename.substring(3);
                String remotefilepath = "D:\\" + remotefilename;

                System.out.println("Sending file " + remotefilepath);

                // write the file
                FileOutputStream fos = new FileOutputStream(remotefilepath);

                int data;
                int totalDataRead;
                byte[] buffer = new byte[3000];
                boolean isLastPacket = false;


                // read file byte per byte
                totalDataRead =  socketIn.read(buffer, 0, buffer.length);

                if(totalDataRead >= 1024){
                    while (totalDataRead != -1) {
                        // write data
                        fos.write(buffer,0, totalDataRead);
                        fos.flush();

                        if(!isLastPacket){
                            totalDataRead =  socketIn.read(buffer, 0, 
buffer.length);
                            if (totalDataRead < 1024) {
                                isLastPacket = true;
                            }
                        } else {
                            totalDataRead = -1;
                            isLastPacket = false;
                        }
                    }
                } else {
                    fos.write(buffer,0, totalDataRead);
                    fos.flush();
                }

                clientSocket.close();
                socketIn.close();
                fos.close();

            }catch(Exception ex){
                System.out.println("file transfer failed");
            }

            System.out.println("File transfer complete");

        }

    }

-----------------------------------------------

Iemand die ziet wat ik hier verkeerd doe?
Groetjes,
Pieter