Probleme Launcher

[Prutix]

Bonjour à tous je suis en train de développer un launcher pour un serveur pvp faction mais j'ai une erreur que je n'arrive pas à régler.

package fr.prutix.lagalauncher;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Image;
import java.io.File;
import java.io.IOException;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.SwingConstants;

import fr.theshark34.openauth.AuthenticationException;
import fr.theshark34.openlauncherlib.LaunchException;
import fr.theshark34.openlauncherlib.util.Saver;
import fr.theshark34.swinger.Swinger;
import fr.theshark34.swinger.animation.Animator;
import fr.theshark34.swinger.colored.SColoredBar;
import fr.theshark34.swinger.event.SwingerEvent;
import fr.theshark34.swinger.event.SwingerEventListener;
import fr.theshark34.swinger.textured.STexturedButton;

@SuppressWarnings("serial")
public class LauncherPanel extends JPanel implements SwingerEventListener
{
	
	private Image background = Swinger.getResource("background.png");
	
	private Saver saver = new Saver(new File(Launcher.LG_DIR, "launcher.properties"));
	
	private JTextField usernameField = new JTextField(this.saver.get("username"));
	private JPasswordField passwordField = new JPasswordField();
	
	private STexturedButton playButton = new STexturedButton(Swinger.getResource("play.png"));
	private STexturedButton quitButton = new STexturedButton(Swinger.getResource("quit.png"));
	private STexturedButton hideButton = new STexturedButton(Swinger.getResource("hide.png"));
	
	private SColoredBar progressBar = new SColoredBar(new Color(255, 255, 255, 175), new Color(255, 255, 255, 255));
	private JLabel infoLabel = new JLabel("Cliquez sur Se Connecter !", SwingConstants.CENTER);
	

	public LauncherPanel()
	{
		this.setLayout(null);
		
		usernameField.setForeground(Color.BLACK);
		usernameField.setFont(usernameField.getFont().deriveFont(20.0F));
		usernameField.setCaretColor(Color.BLACK);
		usernameField.setOpaque(false);
		usernameField.setBorder(null);
		usernameField.setBounds(85, 110, 253, 34);
		this.add(usernameField);
		
		passwordField.setForeground(Color.BLACK);
		passwordField.setFont(usernameField.getFont());
		passwordField.setCaretColor(Color.BLACK);
		passwordField.setOpaque(false);
		passwordField.setBorder(null);
		passwordField.setBounds(85, 262, 253, 34);
		this.add(passwordField);
		
		playButton.setBounds(86, 330);
		playButton.addEventListener(this);
		this.add(playButton);
		
		quitButton.setBounds(911, 0);
		quitButton.addEventListener(this);
		this.add(quitButton);
		
		hideButton.setBounds(850, 0);
		hideButton.addEventListener(this);
		this.add(hideButton);

		
		progressBar.setBounds(8, 597, 959, 20);
		this.add(progressBar);
		
		infoLabel.setForeground(Color.WHITE);
		infoLabel.setFont(usernameField.getFont());
		infoLabel.setBounds(8, 570, 959, 20);
		this.add(infoLabel);
	}
	
	@SuppressWarnings("deprecation")
	@Override
	public void onEvent(SwingerEvent e)
	{
		if(e.getSource() == playButton)
		{
			setFieldsEnabled(false);
			
			if(usernameField.getText().replaceAll(" ", "").length() == 0 || passwordField.getText().length() == 0)
			{
				JOptionPane.showMessageDialog(this, "Erreur, veuillez entrer un pseudo et un mot de passe valide.", "Erreur", JOptionPane.ERROR_MESSAGE);
				setFieldsEnabled(true);
				return;
			}
			
			Thread t = new Thread() 
			{
				@Override
				public void run()
				{
					try
					{
						Launcher.auth(usernameField.getText(), passwordField.getText());
					}catch(AuthenticationException e)
					
					{
						JOptionPane.showMessageDialog(LauncherPanel.this, "Erreur, impossible de se connecter. " + e.getErrorModel().getErrorMessage(), "Erreur", JOptionPane.ERROR_MESSAGE);
						setFieldsEnabled(true);
						return;
					}
					
					saver.set("username", usernameField.getText());
					try
					{
						Launcher.update();
					}
					catch(IOException e)
					{
						Launcher.interruptThread();
						Launcher.getCrashReporter().catchError(e, "Impossible de mettre a jour le launcher");
						setFieldsEnabled(true);
						return;
					}
					try
					{
						Launcher.launch();
					}
					catch(LaunchException e)
					{
						Launcher.getCrashReporter().catchError(e, "Impossible de");
						setFieldsEnabled(true);
						return;
					}
					
				}
				
			};
			t.start();
		} else if(e.getSource() == quitButton)
			Animator.fadeOutFrame(LauncherFrame.getInstance(), 2, new Runnable() {
				
				@Override
				public void run() {
					System.exit(0);
					}
			});
		else if(e.getSource() == hideButton)
			LauncherFrame.getInstance().setState(JFrame.ICONIFIED);
			
	}
	
	@Override
	public void paintComponent(Graphics g)
	{
		super.paintComponent(g);
		
		g.drawImage(background, 0, 0, this.getWidth(), this.getHeight(), this);
	}
	
	private void setFieldsEnabled(boolean enabled)
	{
		usernameField.setEnabled(enabled);
		passwordField.setEnabled(enabled);
		playButton.setEnabled(enabled);
	}
	
	public SColoredBar getProgressBar()
	{
		return progressBar;
	}
	
	public void setInfoText(String text)
	{
		infoLabel.setText(text);
	}
}

Ceci est ma class Launcher Panel, il y a une erreur au niveau de Launcher.update().

[robin4002]

Bonjour,
J'ai déplacé la demande d'aide dans la bonne section.
Pour obtenir de l'aide il serait également bien de détailler le problème.