Screen Capture allows the same picture

[Dean Reedy]

ok, I have a jsp page which calls a java class which captures my webserver screen shot and saves it as a jpg. The problem is everytime I call this class it is the same picture and will not update itself, same old screen shot. I delete the jsp between calls and the old picture appears! Any ideas?
I call the class by using:

 <%@ page import = "ScreenCapture" %>
<jsp:useBean id="ccapture" scope="page" class="ScreenCapture">
</jsp:useBean>
<% ccapture.setCapture(); %>
<% if (!ccapture.validCommand()) out.println("Error With Screen Shot"); %> 

The code for the class is as follows:

 import javax.swing.*;
import java.io.*;
import java.util.*;
import java.awt.*;
import java.awt.image.*;
import java.awt.print.*;
import com.sun.image.codec.jpeg.*;
public class ScreenCapture {
 private boolean commandSuccess = false;
  public ScreenCapture() { }
   public void setCapture() {
   Graphics2D g = null;
Image im = null;
BufferedImage img = null;
       commandSuccess=false;
           try{
Robot r1 = new Robot();
 
// Capture the whole screen
Rectangle area = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
im = r1.createScreenCapture(area); 
// make an image (img) to save im into 
img = new BufferedImage(area.width,area.height, BufferedImage.TYPE_INT_RGB);
g = img.createGraphics(); // We'll speak to img via a graphics object
g.drawImage(im, null, null); // draw the im into g
// Encode the off screen image into a GIF and save it to a file
FileOutputStream out = new FileOutputStream("c:\\apache-tomcat\\webapps\\homepage\\images\\x.jpg");
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(img);
out.flush();
out.close();
            commandSuccess=true;
        } 
        catch(Exception e){
            System.out.println ("Error RunSystemCommand.java: " + e.toString());
        }
  }
    public boolean validCommand() {
       return commandSuccess;
    }
 } 

Any ideas would be great.
thanks,
Dean

[Bear Bibeault]

Are you checking to make sure that the image on disk is updating? If so, then I'd suspect that the browser is serving the "old" images up from cache.
hth,
bear