error with PDFBox in servlets - servlets

Question

**iam trying to generate a pdf of my page contents from doPost method. but my tomcat server fails to start each time
below is my code
#SuppressWarnings({ "deprecation", "resource" })
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
try{
String filename="mypdf";
PDDocument mydoc=new PDDocument();
PDPage page=new PDPage();
mydoc.addPage(page);
PDPageContentStream content=new PDPageContentStream(mydoc, page);
content.beginText();
content.setFont(PDType1Font.COURIER_BOLD, 30);
content.moveTextPositionByAmount(250, 750);
content.drawString("syllabus");
content.endText();
content.close();
mydoc.save(filename);
mydoc.close();
System.out.println("the pdf saved at"+System.getProperty("user.dir"));
}catch(IOException ie)
{
System.out.println("IOexception"+ie);
}
}
**

Answer 1

This worked for me. just try formatting like this.
#SuppressWarnings("javadoc")
public class Billing extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
performTask(request, response);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException,
IOException {
performTask(request, response);
}
private void performTask(HttpServletRequest request, HttpServletResponse response) throws ServletException,
IOException {
//Create pdf
PDDocument document = new PDDocument();
//Create Page
PDPage page = new PDPage();
//Adding the page
document.addPage(page);
//Loading the page
File file = new File("D:/akash/my_doc.pdf");
//writing text
contentStream.beginText();
contentStream.newLineAtOffset(295, 757);
contentStream.setFont(PDType1Font.HELVETICA_BOLD, 12);
contentStream.showText("CHIMERA TRANSPLANT RESEARCH FOUNDATION");
contentStream.endText();
//Saving the document
document.save("D:/akash/my_doc.pdf");
//Closing the document
document.close();
}
}