Serialiser une Applet et d'en ecrire le Contenu sur le disque d' un serveur Web distant

Bonsoir,

Je tente de Serialiser une Applet et d'en ecrire le Contenu via le
disque d'un serveur Web distant.
Si mon applet le fait en local en tant qu'application cela fonctionne,
si je le fait avec la servlet, j'ai une erreur de Serialisation
Ou est mon erreur !!

Merci d'avance
Philippe


Message d'erreur
’^@^E{sr^@
java.io.NotSerializableException(Vx^@ç~F^V5^B^@^@xr^@^]java.io.Objec
tStreamExceptiondÃäk~M9ûß^B^@^@xr^@^Sjava.io.IOExceptionl~@sde%ð=
«^B^@^@xr^@^Sjav
a.lang.ExceptionÐý^_>^Z;^\Ä^B^@^@xr^@^Sjava.lang.ThrowableÕÆ5'9=
w¸Ë^C^@^CL^@^Ecau
set^@^ULjava/lang/Throwable;L^@^MdetailMessaget^@^RLjava/lang/String;[^@

stackTracet^@^^[Ljava/lang/StackTraceElement;xpq^@~^@^Ht^@^Yjava.io.ObjectI=
nputS
treamur^@^^[Ljava.lang.StackTraceElement;^BF*<<ý"9^B^@^@xp^@^@^@!sr^@^[ja=
va.lang
.StackTraceElementa Å~Z&6Ý~E^B^@^DI^@

lineNumberL^@^NdeclaringClassq^@~^@^FL^@^HfileNameq^@~^@^FL^@

methodNameq^@~^@^Fxpÿÿÿýt^@^Zjava.io.ObjectOutputStreamt^@^WObjectO=
utputStream.j
avat^@^LwriteObject0sq^@~^@^L^@^@^A3t^@^Zjava.io.ObjectOutputStreamt^@^WObj=
ectOu
tputStream.javat^@^KwriteObjectsq^@~^@^L^@^@^A8t^@^Xservletgraph.FileServle=
tt^@^
PFileServlet.javat^@^FdoPostsq^@~^@^L^@^@^Bøt^@^^javax.servlet.http.HttpS=
ervlett
^@^PHttpServlet.javat^@^Gservicesq^@~^@^L^@^@^CUt^@^^javax.servlet.http.Htt=
pServ
lett^@^PHttpServlet.javat^@^Gservicesq^@~^@^L^@^@^@÷t^@/org.apache.catali=
na.core
.ApplicationFilterChaint^@^[ApplicationFilterChain.javat^@^PinternalDoFilte=
rsq^@
~^@^L^@^@^@Át^@/org.apache.catalina.core.ApplicationFilterChaint^@^[Appli=
cationF
ilterChain.javat^@^HdoFiltersq^@~^@^L^@^@^A^@t^@-org.apache.catalina.core.S=
tanda
rdWrapperValvet^@^YStandardWrapperValve.javat^@^Finvokesq^@~^@^L^@^@^B~Ct^@=
Forg.
apache.catalina.core.StandardPipeline$StandardPipelineValveContextt^@^UStan=
dardP
ipeline.javat^@



Cote Applet

package applet8;
import java.applet.Applet;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.Button;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.*;
import java.io.*;
import java.net.*;


public class Applet4 extends Applet
{
private Button button1 = new Button();

public Applet4()
{
}


/**
/**
* @param args
*/
public static void main(String[] args)
{
Applet4 applet = new Applet4();
Frame frame = new Frame();
frame.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
});
frame.add(applet, BorderLayout.CENTER);
frame.setTitle("Applet Frame");
applet.init();
applet.start();
frame.setSize(300, 300);
Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
Dimension frameSize = frame.getSize();
frame.setLocation((d.width - frameSize.width) / 2, (d.height -
frameSize.height) / 2);
frame.setVisible(true);
}

public void init()
{
this.setLayout(null);
button1.setLabel("button1");
button1.setBounds(new Rectangle(150, 65, 73, 23));
button1.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
button1_actionPerformed(e);
}
});
this.add(button1, null);
}


private void button1_actionPerformed(ActionEvent e)
{
ObjectOutputStream out;
try
{
String m_URL=new
String("http://172.14.1.141/servlet/servletgraph.FileServlet");
String string4=m_URL;

if(string4.indexOf("?")<0)
string4 += "?";
else
string4 += "&";

string4+="debug=true&";
string4+="servletname=write&type=object&";
string4+="cfile=toto.txt";
URL u=new URL(string4);

HttpURLConnection urlc = (java.net.HttpURLConnection)
u.openConnection();
// Set the Post (true) or Get (false) method.
urlc.setDoOutput(true);
urlc.setDoInput(true);
urlc.setUseCaches(false);
urlc.setAllowUserInteraction(false);

urlc.setRequestProperty("Content-type",
"application/octet-stream");
// urlc.setRequestProperty("Content-Type", "java-internal/" +
this.getClass().getName());

out = new ObjectOutputStream(urlc.getOutputStream());
out.writeObject(this);

if (urlc.getResponseCode() != HttpURLConnection.HTTP_OK) {
System.out.println("Error");
// throw new Exception("Access error. ");
} else {
System.out.println("I have now access to the stream");
// blaha balaaha blaahahaha
}
out.flush();
out.close();

}
catch (IOException ioe) {
System.err.println(ioe);
ioe.printStackTrace();
}
}
}


Coté Servlet

package servletgraph


public class FileServlet extends HttpServlet
{


public void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
{
ObjectInputStream in = new ObjectInputStream(req.getInputStream() );
FileOutputStream file = new
FileOutputStream(req.getRealPath("/")+czPath);
ObjectOutputStream out = new ObjectOutputStream(file);
out.writeObject(in);
out.flush();
out.close();
}
}