Erro connection reset

java.net.SocketException: Connection reset
	at java.net.SocketInputStream.read(SocketInputStream.java:189)
	at java.net.SocketInputStream.read(SocketInputStream.java:121)
	at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:283)
	at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:325)
	at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:177)
	at java.io.InputStreamReader.read(InputStreamReader.java:184)
	at java.io.BufferedReader.fill(BufferedReader.java:154)
	at java.io.BufferedReader.readLine(BufferedReader.java:317)
	at java.io.BufferedReader.readLine(BufferedReader.java:382)
	at servidor.classes.User.run(User.java:38)
	at java.lang.Thread.run(Thread.java:722)

package servidor.classes;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.PrintStream;

/**
 *
 * @author Lucas
 */
public class User implements Runnable {

    private String nome = "";
    private BufferedReader reader = null;
    private PrintStream writer = null;
    private Thread runner = null;

    public User(BufferedReader reader, PrintStream writer, String nome) {

        this.writer = writer;
        this.reader = reader;
        setNome(nome);
        runner = new Thread(this);
        runner.start();

    }

    public void run() {

        while (true) {
            
            try {

                String msg = reader.readLine();

                if (msg.length() > 0) {
                    msg = getNome() + ": " + msg;
                    ConexaoServidor.addMensagem(msg);
                }

                writer.println(ConexaoServidor.getTimeline());

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

        }

    }

    public String getNome() {
        return nome;
    }

    public void setNome(String nome) {
        this.nome = nome;
    }
    
}