submit on jsp gives a blank page and doesnt load it

when i submit it redirects me to the link i wanted but the page is blank

here is the code of form in jsp

<form class="inscription-form" method="post" action="apropos">
        <hr style="color: blue">
        <div class="form-group">
            <input type="text" name="nom" id="nom" class="form-control" 
             placeholder="pseudo">
        </div>
        <button type="submit" class="btn btn-primary" >inscriprion</button>
    </form>

• when the link is the same page it gives me 404 error

here is the java code

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

    public inscription() {
        super();
        // TODO Auto-generated constructor stub
    }


    protected void doGet(HttpServletRequest request, HttpServletResponse 
    response) throws ServletException, IOException {

         request.setAttribute("utilisateur",utilisateur);
         this.getServletContext().getRequestDispatcher("/WEB- 
         INF/inscription.jsp").forward(request, response);

    }


    protected void doPost(HttpServletRequest request, HttpServletResponse 
    response) throws ServletException, IOException {
        utilisateur = new Utilisateur();
        utilisateur.setNom(request.getParameter("nom"));
        request.setAttribute("utilisateur",utilisateur);
         this.getServletContext().getRequestDispatcher("/WEB- 
         INF/inscription.jsp").forward(request, response);

    }

}

thank you for help