Problem with Uploading file from Servlet to Client machine.

Hi all,
        I'm using following code to upload file from servlet to client
machine for saving that in the client machine.
        But, I could only see the dialogue box with "save" "Open" "cancel".
If I click 'Open" it is reporting file corruption. If I save, I can see the
size of file as 1 byte.
        Can any one help me by pointing the mistake in the code? or correct
approach....

                        FileInputStream fo = new
FileInputStream("c:\\tech.pdf");
                        response.setContentType("application/pdf");

response.setHeader("Content-Disposition","attachment;
filename=output.pdf;");
                        javax.servlet.ServletOutputStream out =
response.getOutputStream();
                        long avl = 0;
                        while( (avl = fo.available()) != 0)
                        {
                                byte[] bytes = new byte[(int)avl];
                                out.write(fo.read(bytes));
                        }
                        out.flush();
                        out.close();
                        fo.close();

> Thanks and Regards,
>   Bhanu
>
>

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