Strange characters instead of PDF-file

Question

when I forward to a servlet called Test.java, my browser return a PDF file.
but when I write the method of the servlet in a bean, called WinkelWagen.java, and I write the rest of the code of the servlet in a jsp file (pdf.jsp, this jsp calls the method in the bean) I only get strange characters returned by my browser and Acrobat Reader doesn't run.
the code of the servlet Test.java:
package be.steppe.cursusdienst.pdf;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import java.io.ByteArrayOutputStream;
import java.io.PrintWriter;
import be.steppe.cursusdienst.instellingen.Variabelen;
import be.steppe.cursusdienst.beans.WinkelWagen;
import be.steppe.cursusdienst.Product;
import com.lowagie.text.*;
import com.lowagie.text.pdf.*;
public class Test extends HttpServlet
     public Test()
          super();
     public void doGet(HttpServletRequest req, HttpServletResponse resp)
          throws javax.servlet.ServletException, java.io.IOException
          DocumentException ex = null;
          ByteArrayOutputStream baosPDF = null;
          //HttpSession session = req.getSession(true);
          //WinkelWagen ww = (WinkelWagen) req.getAttribute("winkelWagen");
          //Vector vector = new Vector();
          //vector = ww.genereerFormLijst();
          try
               baosPDF = fix();
               StringBuffer sbFilename = new StringBuffer();
               sbFilename.append("filename_");
               sbFilename.append(System.currentTimeMillis());
               sbFilename.append(".pdf");
               resp.setHeader("Cache-Control", "max-age=30");
               resp.setContentType("application/pdf");
               StringBuffer sbContentDispValue = new StringBuffer();
               sbContentDispValue.append("inline");
               sbContentDispValue.append("; filename=");
               sbContentDispValue.append(sbFilename);
               resp.setHeader("Content-disposition",sbContentDispValue.toString());
               resp.setContentLength(baosPDF.size());
               ServletOutputStream sos;
               sos = resp.getOutputStream();
               baosPDF.writeTo(sos);
               sos.flush();
          catch (DocumentException dex)
               resp.setContentType("text/html");
               PrintWriter writer = resp.getWriter();
               writer.println(
                         this.getClass().getName()
                         + " caught an exception: "
                         + dex.getClass().getName()
                         + "<br>");
               writer.println("<pre>");
               dex.printStackTrace(writer);
               writer.println("</pre>");
          finally
               if (baosPDF != null)
                    baosPDF.reset();
     protected ByteArrayOutputStream fix() throws DocumentException {
          Document doc = new Document();
          ByteArrayOutputStream baosPDF = new ByteArrayOutputStream();
          PdfWriter docWriter = null;
          try
               docWriter = PdfWriter.getInstance(doc, baosPDF);
               doc.addAuthor(this.getClass().getName());
               doc.addCreationDate();
               doc.addProducer();
               doc.addCreator(Variabelen.getPdfAuteur());
               doc.addTitle("BESTELLING");
               doc.setPageSize(PageSize.LETTER);
               HeaderFooter footer = new HeaderFooter(
                                   new Phrase("BESTELLING     ID:           GEPLAATST DOOR:"),
                                   false);
               doc.setFooter(footer);
               doc.open();
/*                for(int i = 0 ; i < vector.size() ; i++) {
*                doc.add(new Paragraph( ((Product) vector.elementAt(i)).getProductId() ));
               doc.add(new Paragraph(
                              "This document was created on "
                              + new java.util.Date()));
          catch (DocumentException dex)
               baosPDF.reset();
               throw dex;
          finally
               if (doc != null)
                    doc.close();
               if (docWriter != null)
                    docWriter.close();
          if (baosPDF.size() < 1)
               throw new DocumentException(
                    "document has "
                    + baosPDF.size()
                    + " bytes");          
          return baosPDF;
}The code of the bean:
package be.steppe.cursusdienst.beans;
import java.util.Vector;
import be.steppe.cursusdienst.Product;
import be.steppe.cursusdienst.FormProduct;
import java.io.*;
import be.steppe.cursusdienst.instellingen.Variabelen;
import com.lowagie.text.*;
import com.lowagie.text.pdf.*;
public class WinkelWagen implements Serializable {
  private Vector producten;
  public WinkelWagen() {
    producten = new Vector();
  public void voegProductToe(Product p) {
    producten.addElement(p);
  public Vector haalProducten() {
    return producten;
  public void verwijderProduct(int pId) {
    for(int i = 0 ; i < producten.size() ; i++) {
      if(pId == ((Product) (producten.elementAt(i))).getProductId()) {
        producten.removeElementAt(i);
        break;
  public void maakWinkelWagenLeeg() {
    producten.removeAllElements();
  public Vector genereerFormLijst() {
    int aantal = 0;
    Vector lijst = new Vector();
    boolean alInLijst;
    for(int i = 0 ; i < producten.size() ; i++) {
      aantal = 0;
      int prodId;
      alInLijst = false;
      Product p = (Product) producten.elementAt(i);
      prodId = p.getProductId();
      for(int l = 0 ; l < lijst.size() ; l++) {
        if(prodId == ((FormProduct) (lijst.elementAt(l))).getProductId()) {
          alInLijst = true;
      if(!alInLijst) {
        for(int q = 0 ; q < producten.size() ; q++) {
          if(prodId == ((Product) (producten.elementAt(q))).getProductId()) {
            aantal++;
        int pId = ((Product) (producten.elementAt(i))).getProductId();
        String tNaam = ((Product) (producten.elementAt(i))).getTypeNaam();
        String tit = ((Product) (producten.elementAt(i))).getTitel();
        String omschr = ((Product) (producten.elementAt(i))).getOmschrijving();
        double pr = ((Product) (producten.elementAt(i))).getPrijs();
        int hoev = ((Product) (producten.elementAt(i))).getStock();
        FormProduct formProduct = new FormProduct(pId,tNaam,tit,omschr,pr,hoev,aantal);
        lijst.addElement(formProduct);
      return lijst;
    public double berekenTotaal() {
      double totaal = 0;
      for(int i = 0 ; i < producten.size() ; i++) {
        Product p = (Product) producten.elementAt(i);
        totaal = totaal + p.getPrijs();
      return totaal;
    public ByteArrayOutputStream fix() throws DocumentException {
         Vector vector = genereerFormLijst();
         Document doc = new Document();
          ByteArrayOutputStream baosPDF = new ByteArrayOutputStream();
          PdfWriter docWriter = null;
          try
               docWriter = PdfWriter.getInstance(doc, baosPDF);
               doc.addAuthor("author");
               doc.addCreationDate();
               doc.addProducer();
               doc.addCreator(Variabelen.getPdfAuteur());
               doc.addTitle("BESTELLING");
               doc.setPageSize(PageSize.LETTER);
               HeaderFooter footer = new HeaderFooter(
                                   new Phrase("BESTELLING     ID:           GEPLAATST DOOR:"),
                                   false);
               doc.setFooter(footer);
               doc.open();
               for(int i = 0 ; i < vector.size() ; i++) {
               doc.add(new Paragraph( ((FormProduct) vector.elementAt(i)).getProductId() ));
               doc.add(new Paragraph(
                              "This document was created on "
                              + new java.util.Date()));
          catch (DocumentException dex)
               baosPDF.reset();
               throw dex;
          finally
               if (doc != null)
                    doc.close();
               if (docWriter != null)
                    docWriter.close();
          if (baosPDF.size() < 1)
               throw new DocumentException(
                    "document has "
                    + baosPDF.size()
                    + " bytes");          
          return baosPDF;
}the code of the JSP-file
<html>
<head>
</head>
<%@ page import="java.io.ByteArrayOutputStream" %>
<%@ page import="java.io.PrintWriter"%>
<%@ page import="be.steppe.cursusdienst.instellingen.Variabelen"%>
<%@ page import="be.steppe.cursusdienst.beans.WinkelWagen"%>
<%@ page import="be.steppe.cursusdienst.Product"%>
<%@ page import="java.util.*" %>
<%@ page import="com.lowagie.text.*" %>
<%@ page import="com.lowagie.text.pdf.*" %>
<jsp:useBean class="WinkelWagen" id="winkelWagen" scope="session" />
<body>
<%
ByteArrayOutputStream baosPDF = null;     
try
               baosPDF = winkelWagen.fix();
               StringBuffer sbFilename = new StringBuffer();
               sbFilename.append("filename_");
               sbFilename.append(System.currentTimeMillis());
               sbFilename.append(".pdf");
               response.setHeader("Cache-Control", "max-age=30");
               response.setContentType("application/pdf");
               StringBuffer sbContentDispValue = new StringBuffer();
               sbContentDispValue.append("inline");
               sbContentDispValue.append("; filename=");
               sbContentDispValue.append(sbFilename);
               response.setHeader("Content-disposition",sbContentDispValue.toString());
               response.setContentLength(baosPDF.size());
               ServletOutputStream sos;
               sos = response.getOutputStream();
               baosPDF.writeTo(sos);
               sos.flush();
          catch (DocumentException dex)
               response.setContentType("text/html");
               PrintWriter writer = response.getWriter();
               writer.println(
                         this.getClass().getName()
                         + " caught an exception: "
                         + dex.getClass().getName()
                         + "<br>");
               writer.println("<pre>");
               dex.printStackTrace(writer);
               writer.println("</pre>");
          finally
               if (baosPDF != null)
                    baosPDF.reset();
%>
</body>
          </html>can anyone please help me out ...
gr
Steppe

Answer 1

ok,
I removed the html tags in the jsp-file and now acrobat reader does start.
but it says the pdf file is damaged and cannot be repaired ...
any ideas?
gr
Steppe