[RESOLVIDO] HttpSession compartilhando memoria em duas requisições

metodo.invoke(clazz.newInstance(), null)

public class ServletServce {
 protected String paginaRetorno = "inicio.jsp";  
    protected Session sessaoHBN;      
    protected HttpServletRequest request;  
    protected HttpServletResponse response;  
    protected HttpSession sessaoHTTP; 

    public void execute(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        
 this.request = request;  
        this.response = response;  
        String acao = request.getParameter("acao");  
        try {  
            sessaoHTTP = request.getSession();  
            sessaoHBN = HibernateUtil.openSession();  
            Integer codEmpresa = (Integer) sessaoHTTP.getAttribute("codEmpresa");  
            if ((codEmpresa != null) || "efetuarLogin".equals(acao) || "cadastrarEmpresa".equals(acao)) {  
                Class clazz = this.getClass();  
                Method[] metodos = clazz.getMethods();  
                for (Method metodo : metodos) {  
                    if (metodo.getName().equals(acao)) {  
                        metodo.invoke(this, null);  
                    }  
                }  
            } else {  
                this.setPaginaRetorno("login.jsp");  
            }  
            RequestDispatcher dispatcher = request.getRequestDispatcher(this.getPaginaRetorno());  
            dispatcher.forward(request, response);  
        } catch (Exception e) {  
            e.printStackTrace();  
        } finally {  
            HibernateUtil.closeCurrentSession();  
        }  

    }

 public String getPaginaRetorno() {  
        return paginaRetorno;  
    }  
  
    /** 
     * @param paginaRetorno the paginaRetorno to set 
     */  
    public void setPaginaRetorno(String paginaRetorno) {  
        this.paginaRetorno = paginaRetorno;  
    } 
    
}

public class ServletController extends HttpServlet { 
 protected synchronized void processRequest(HttpServletRequest request, HttpServletResponse response)  
            throws ServletException, IOException {  

         new ServletServce.execute(request , response); //passa e execução para a classe servce
  
      
    }  
  
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">  
    /** 
     * Handles the HTTP 
     * <code>GET</code> method. 
     * 
     * @param request servlet request 
     * @param response servlet response 
     * @throws ServletException if a servlet-specific error occurs 
     * @throws IOException if an I/O error occurs 
     */  
    @Override  
    protected void doGet(HttpServletRequest request, HttpServletResponse response)  
            throws ServletException, IOException {  
        processRequest(request, response);  
    }  
  
    /** 
     * Handles the HTTP 
     * <code>POST</code> method. 
     * 
     * @param request servlet request 
     * @param response servlet response 
     * @throws ServletException if a servlet-specific error occurs 
     * @throws IOException if an I/O error occurs 
     */  
    @Override  
    protected void doPost(HttpServletRequest request, HttpServletResponse response)  
            throws ServletException, IOException {  
        processRequest(request, response);  
    }  
  
    /** 
     * Returns a short description of the servlet. 
     * 
     * @return a String containing servlet description 
     */  
    @Override  
    public String getServletInfo() {  
        return "Short description";  
    }// </editor-fold>  
}