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Код

import java.io.IOException;
import javax.servlet.*;
import javax.servlet.http.*;
import ru.papillon.man.hibernate.*;
import org.hibernate.*;

public class SaveProject extends HttpServlet {
    private static final long serialVersionUID = 1L;

    public void doPost (HttpServletRequest request,
                        HttpServletResponse response) throws
            ServletException, IOException {
        Project newProject = populateNewProjectFromRequest(request);
        addNewProject(newProject);
        forwardToProjectsView(request, response);
    }
    
    private void addNewProject (Project project) throws
        ServletException, IOException {
        try {
            
            Session session = HibernateUtil.getSessionFactory().openSession();
            Transaction tx = session.beginTransaction();

            session.save(project); ///////////////////////////////////////////////// ERRRORRR!

            tx.commit();
            session.close();

        } catch (Exception ex) {
            getServletContext().log(
                    "Error: ProjectBean.addNewProject()", ex);
        }
    }
    
    private void forwardToProjectsView (HttpServletRequest request,
                                        HttpServletResponse response) 
                throws ServletException, IOException {
        RequestDispatcher dispatcher = request.getRequestDispatcher("/projects");
        dispatcher.forward(request, response);
    }
    
    private Project populateNewProjectFromRequest (HttpServletRequest request) {
        Project newProject = new Project();
        populatePapIndex(request, newProject);
        populateName(request, newProject);
        populateDescription(request, newProject);
        populateNote(request, newProject);
        populateManager(request, newProject);
        return newProject;
    }
    
    private void populatePapIndex (HttpServletRequest request, Project newProject) {
        short papIndex = Short.parseShort(request.getParameter("papIndex"));
        if (request.getParameter("papIndex") != null) newProject.setPapIndex(papIndex);
    }
    
    private void populateName (HttpServletRequest request, Project newProject) {
        String name = request.getParameter("name");
        if (name != null) newProject.setName(name);
    }
    
    private void populateDescription (HttpServletRequest request, Project newProject) {
        String description = request.getParameter("description");
        if (description != null) newProject.setDescription(description);
    }
    
    private void populateNote (HttpServletRequest request, Project newProject) {
        String note = request.getParameter("note");
        if (note != null) newProject.setNote(note);
    }
    
    private void populateManager (HttpServletRequest request, Project newProject) {
        String manager = request.getParameter("manager");
        if (manager != null) newProject.setManager(manager);
    }
}