File and FileInputStream problem

Question

Hi all
I have downloaded from developpez.com a sample code to zip files. I modified it a bit to suit with my needs, and when I launched it, there was an exception. So I commented all the lines except for the first executable one; and when it succeeds then I uncomment the next executable line; and so on. When I arrived at the FileInputStream line , the exception raised. When I looked at the code, it seemed normal. So I want help how to solve it. Here is the code with the last executable line uncommented, and the exception stack :
// Copyright (c) 2001
package pack_zip;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import oracle.jdeveloper.layout.*;
import java.io.*;
import java.util.*;
import java.util.zip.*;
import java.text.*;
* A Swing-based top level window class.
* <P>
* @author a
public class fzip extends JFrame implements ActionListener{
JPanel jPanel1 = new JPanel();
XYLayout xYLayout1 = new XYLayout();
JTextField szdir = new JTextField();
JButton btn = new JButton();
JButton bzip = new JButton();
     * Taille générique du tampon en lecture et écriture
static final int BUFFER = 2048;
* Constructs a new instance.
public fzip() {
super("Test zip");
try {
jbInit();
catch (Exception e) {
e.printStackTrace();
* Initializes the state of this instance.
private void jbInit() throws Exception {
this.getContentPane().setLayout(xYLayout1);
     this.setSize(new Dimension(400, 300));
btn.setText("btn");
btn.setActionCommand("browse");
btn.setLabel("Browse ...");
btn.setFont(new Font("Dialog", 0, 14));
bzip.setText("bzip");
bzip.setActionCommand("zipper");
bzip.setLabel("Zipper");
bzip.setFont(new Font("Dialog", 0, 14));
btn.addActionListener(this);
bzip.addActionListener(this);
bzip.setEnabled(false);
     this.getContentPane().add(jPanel1, new XYConstraints(0, 0, -1, -1));
this.getContentPane().add(szdir, new XYConstraints(23, 28, 252, 35));
this.getContentPane().add(btn, new XYConstraints(279, 28, 103, 38));
this.getContentPane().add(bzip, new XYConstraints(128, 71, 103, 38));
public void actionPerformed(ActionEvent e)
if(e.getActionCommand() == "browse")
FileDialog fd = new FileDialog(this);
fd.setVisible(true);
szdir.setText(fd.getDirectory());
bzip.setEnabled(true);
else
          * Compression
     try {
          // création d'un flux d'écriture sur fichier
     FileOutputStream dest = new FileOutputStream("Test_archive.zip");
          // calcul du checksum : Adler32 (plus rapide) ou CRC32
     CheckedOutputStream checksum = new CheckedOutputStream(dest, new Adler32());
          // création d'un buffer d'écriture
     BufferedOutputStream buff = new BufferedOutputStream(checksum);
          // création d'un flux d'écriture Zip
     ZipOutputStream out = new ZipOutputStream(buff);
     // spécification de la méthode de compression
     out.setMethod(ZipOutputStream.DEFLATED);
          // spécifier la qualité de la compression 0..9
     out.setLevel(Deflater.BEST_COMPRESSION);
     // buffer temporaire des données à écriture dans le flux de sortie
     byte data[] = new byte[BUFFER];
          // extraction de la liste des fichiers du répertoire courant
     File f = new File(szdir.getText());
     String files[] = f.list();
          // pour chacun des fichiers de la liste
     for (int i=0; i<files.length; i++) {
               // en afficher le nom
          System.out.println("Adding: "+files);
// création d'un flux de lecture
FileInputStream fi = new FileInputStream(files[i]);
/* // création d'un tampon de lecture sur ce flux
BufferedInputStream buffi = new BufferedInputStream(fi, BUFFER);
// création d'en entrée Zip pour ce fichier
ZipEntry entry = new ZipEntry(files[i]);
// ajout de cette entrée dans le flux d'écriture de l'archive Zip
out.putNextEntry(entry);
// écriture du fichier par paquet de BUFFER octets
// dans le flux d'écriture
int count;
while((count = buffi.read(data, 0, BUFFER)) != -1) {
          out.write(data, 0, count);
               // Close the current entry
out.closeEntry();
// fermeture du flux de lecture
          buffi.close();*/
/*     // fermeture du flux d'écriture
     out.close();
     buff.close();
     checksum.close();
     dest.close();
     System.out.println("checksum: " + checksum.getChecksum().getValue());*/
     // traitement de toute exception
catch(Exception ex) {
          ex.printStackTrace();
And here is the error stack :
"D:\jdev32\java1.2\jre\bin\javaw.exe" -mx50m -classpath "D:\jdev32\myclasses;D:\jdev32\lib\jdev-rt.zip;D:\jdev32\jdbc\lib\oracle8.1.7\classes12.zip;D:\jdev32\lib\connectionmanager.zip;D:\jdev32\lib\jbcl2.0.zip;D:\jdev32\lib\jgl3.1.0.jar;D:\jdev32\java1.2\jre\lib\rt.jar" pack_zip.czip
Adding: accueil188.cfm
java.io.FileNotFoundException: accueil188.cfm (Le fichier spécifié est introuvable.
     void java.io.FileInputStream.open(java.lang.String)
     void java.io.FileInputStream.<init>(java.lang.String)
     void pack_zip.fzip.actionPerformed(java.awt.event.ActionEvent)
     void javax.swing.AbstractButton.fireActionPerformed(java.awt.event.ActionEvent)
     void javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(java.awt.event.ActionEvent)
     void javax.swing.DefaultButtonModel.fireActionPerformed(java.awt.event.ActionEvent)
     void javax.swing.DefaultButtonModel.setPressed(boolean)
     void javax.swing.plaf.basic.BasicButtonListener.mouseReleased(java.awt.event.MouseEvent)
     void java.awt.Component.processMouseEvent(java.awt.event.MouseEvent)
     void java.awt.Component.processEvent(java.awt.AWTEvent)
     void java.awt.Container.processEvent(java.awt.AWTEvent)
     void java.awt.Component.dispatchEventImpl(java.awt.AWTEvent)
     void java.awt.Container.dispatchEventImpl(java.awt.AWTEvent)
     void java.awt.Component.dispatchEvent(java.awt.AWTEvent)
     void java.awt.LightweightDispatcher.retargetMouseEvent(java.awt.Component, int, java.awt.event.MouseEvent)
     boolean java.awt.LightweightDispatcher.processMouseEvent(java.awt.event.MouseEvent)
     boolean java.awt.LightweightDispatcher.dispatchEvent(java.awt.AWTEvent)
     void java.awt.Container.dispatchEventImpl(java.awt.AWTEvent)
     void java.awt.Window.dispatchEventImpl(java.awt.AWTEvent)
     void java.awt.Component.dispatchEvent(java.awt.AWTEvent)
     void java.awt.EventQueue.dispatchEvent(java.awt.AWTEvent)
     boolean java.awt.EventDispatchThread.pumpOneEvent()
     void java.awt.EventDispatchThread.pumpEvents(java.awt.Conditional)
     void java.awt.EventDispatchThread.run()
Thank you very much

Answer 1

One easy way to send a file through RMI is to read all bytes of a file to a byte array and send this array as a parameter of a remote method. But of course you may have problems with memory when you send large files. The receive is simillary.
Other way is to split the file and getting slices of the file, sending slices and re-assemble at destination. This assume that the file isn't changed through the full transfering is concluded.
I hope these could help you.