Socket problem with reading/writing - server app does not respond.

Question

Hello everyone,
I'm having a strange problem with my application. In short: the goal of the program is to communicate between client and server (which includes exchange of messages and a binary file). The problem is, when I'm beginning to write to a stream on client side, server acts, like it's not listening. I'd appreciate your help and advice. Here I'm including the source:
The server:
import java.io.IOException;
import java.net.ServerSocket;
public class Server
    public static void main(String[] args)
        ServerSocket serwer;
        try
            serwer = new ServerSocket(4443);
            System.out.println("Server is running.");
            while(true)
                ClientThread klient = new ClientThread(serwer.accept());
                System.out.println("Received client request.");
                Thread t = new Thread(klient);
                t.start();
        catch(IOException e)
            System.out.print("An I/O exception occured: ");
            e.printStackTrace();
}ClientThread:
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;
import java.net.SocketException;
public class ClientThread implements Runnable
    private Socket socket;
    private BufferedInputStream streamIn;
    private BufferedOutputStream streamOut;
    private StringBuffer filePath;
    ClientThread(Socket socket)
            this.socket = socket;     
    public void run()
        try
             this.streamIn = new BufferedInputStream(socket.getInputStream());
             this.streamOut = new BufferedOutputStream(socket.getOutputStream());
            int input;
            filePath = new StringBuffer();
            System.out.println("I'm reading...");
            while((input = streamIn.read()) != -1)
                 System.out.println((char)input);
                 filePath.append((char)input);
            this.streamOut.write("Given timestamp".toString().getBytes());
            ByteArrayOutputStream bufferingArray = new ByteArrayOutputStream();
              while((input = streamIn.read()) != -1)
                   bufferingArray.write(input);
              bufferingArray.close();
            OutputStream outputFileStream1 = new FileOutputStream("file_copy2.wav");
              outputFileStream1.write(bufferingArray.toByteArray(), 0, bufferingArray.toByteArray().length);
              outputFileStream1.close();
            this.CloseStream();
        catch (SocketException e)
            System.out.println("Client is disconnected.");
        catch (IOException e)
            System.out.print("An I/O exception occured:");
            e.printStackTrace();
    public void CloseStream()
        try
            this.streamOut.close();
            this.streamIn.close();
            this.socket.close();
        catch (IOException e)
            System.out.print("An I/O exception occured:");
            e.printStackTrace();
}The client:
import java.io.*;
public class Client
     public static void main(String[] args) throws IOException
          int size;
          int input;
          //File, that I'm going to send
          StringBuffer filePath = new StringBuffer("C:\\WINDOWS\\Media\\chord.wav");
          StringBuffer fileName;
          InputStream fileStream = new FileInputStream(filePath.toString());
        Connect connection = new Connect("127.0.0.1", 4443);
        String response = new String();
        System.out.println("Client is running.");
          size = fileStream.available();
          System.out.println("Size of the file: " + size);
        fileName = new StringBuffer(filePath.substring(filePath.lastIndexOf("\\") + 1));
        System.out.println("Name of the file: " + fileName);
        connection.SendMessage(fileName.toString());
        response = connection.ReceiveMessage();
        System.out.println("Server responded -> " + response);
        ByteArrayOutputStream bufferingArray = new ByteArrayOutputStream();
          while((input = fileStream.read()) != -1)
               bufferingArray.write(input);
          bufferingArray.close();
        FileOutputStream outputFileStream1 = new FileOutputStream("file_copy1.wav");
          outputFileStream1.write(bufferingArray.toByteArray(), 0, bufferingArray.toByteArray().length);
          outputFileStream1.close();
          byte[] array = bufferingArray.toByteArray();
          for (int i = 0; i < array.length; ++i)
               connection.streamOut.write(array);
          response = connection.ReceiveMessage();
System.out.println("Server responded -> " + response);
connection.CloseStream();
Connect class:import java.io.*;
import java.net.Socket;
import java.net.UnknownHostException;
public class Connect
public Socket socket;
public BufferedInputStream streamIn;
public BufferedOutputStream streamOut;
Connect(String host, Integer port)
try
this.socket = new Socket(host, port);
this.streamIn = new BufferedInputStream(this.socket.getInputStream());
this.streamOut = new BufferedOutputStream(this.socket.getOutputStream());
catch (UnknownHostException e)
System.err.print("The Host you have specified is not valid.");
e.getStackTrace();
System.exit(1);
catch (IOException e)
System.err.print("An I/O exception occured.");
e.getStackTrace();
System.exit(1);
public void SendMessage(String text) throws IOException
this.streamOut.write(text.getBytes());
System.out.println("Message send.");
public void SendBytes(byte[] array) throws IOException
     this.streamOut.write(array, 0, array.length);
public String ReceiveMessage() throws IOException
     StringBuffer elo = new StringBuffer();
     int input;
     while((input = streamIn.read()) != -1)
          elo.append((char)input);
     return elo.toString();
public void CloseStream()
try
this.streamOut.close();
this.streamIn.close();
this.socket.close();
catch (IOException e)
System.err.print("An I/O exception occured: ");
e.printStackTrace();

Answer 1

The problem that was solved here was a different problem actually, concerning different source code, in which the solution I offered above doesn't arise. The solution I offered here applied to the source code you posted here.