Não gera saida.txt

O meu código nao gera o saida.txt neeeem....

Podem me ajudar?

package Testes;

import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.OutputStreamWriter;

public class Teste4 {

public static void main(String[] args) throws IOException {

InputStream is = new FileInputStream("teste.txt"); InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr);

OutputStream os = new FileOutputStream("saida.txt"); OutputStreamWriter osw = new OutputStreamWriter(os); BufferedWriter bw = new BufferedWriter(osw);

String linha = br.readLine(); while (linha != null) {

bw.append("teste"); bw.newLine();

linha = br.readLine();

}

br.close(); bw.close(); }

}