JFileChooser i filtry

public static String OpemFileXML(String info)
    {
		String path = null;
		File file = null;
		
		JFileChooser chooser = new JFileChooser(); 
		chooser.setCurrentDirectory(new java.io.File(""));
		chooser.setDialogTitle("Wybierz plik XML dla importu " + info);

		ExampleFileFilter filtro = new ExampleFileFilter();
		filtro.addExtension("mp3");
		filtro.setDescription("File Mp3");
		
		if(0 == chooser.showOpenDialog(null)) 
		{
			file = chooser.getSelectedFile(); 
			path = file.getName();
		}
		else
		{	
			JOptionPane.showMessageDialog(null, "Błąd podczas wyboru pliku", "Błąd", JOptionPane.ERROR_MESSAGE);
		}
		
        return path;
    }