2 Replies Latest reply on Oct 17, 2005 8:28 AM by Gavin King

    NullPointerException in fetching componets

    Amin Abbaspour Newbie

      Hi,

      I have a component called loginAction like this :

      @Stateless
      @Name("loginAction")
      @Interceptor(SeamInterceptor.class)
      public class LoginAction implements Login, Serializable {
      ...


      I can see that component is loaded to Seam as it prints out this:

      13:18:24,095 INFO [Component] Component: loginAction, scope: STATELESS, type: STATELESS_SESSION_BEAN, class: com.basamadco.opxi.manager.logic.LoginAction


      But when I want to load the component in my jsp, via this code:

      <%
       WebSessionContext webSessionContext = (WebSessionContext) Contexts.getSessionContext();
       webSessionContext.set("username", session.getAttribute("j_username"));
       webSessionContext.set("password", session.getAttribute("j_password"));
      
       Context statelessContext = Contexts.getStatelessContext();
      
       LoginAction loginAction = null;
      
       System.err.println("Login is " + statelessContext.get("loginAction").getClass());
      
       loginAction = (LoginAction) statelessContext.get("loginAction");
       loginAction.login();
      
       response.sendRedirect("main.html");
      %>


      Seam generate a NullPointerException. As it cannot fetch loginAction from context. I triedn Interception.ALWAYS and the problem remain.
      java.lang.NullPointerException
       at org.apache.jsp.init_jsp._jspService(org.apache.jsp.init_jsp:58)
       at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
       at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
       at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
       at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
      


      Any help?