I am doing a simple project on portlets. It is deployed in gatein portal by Jboss. However, I have encountered some problems on PortletSession which I don't understand.

Context: I have developed 2 portlets within the same .war file. Portlet A is a search portlet and Portlet B is used to display the result of the search. The problem that I am facing is Portlet B not displaying the search result after I have done a search request using Portlet A. I have used PortletSession to pass an arraylist to Portlet B to display the result. After some debugging, i realized that the VIEW is not invoke after the search request.

Below is the snippet of codes from Portlet A and B.

//ProcessAction from Portlet A- search listing
@ProcessAction(name = "searchListing")
public void searchListing(ActionRequest request, ActionResponse response) {

  ArrayList<Listing> result = new ArrayList<Listing>();
     try {
           if (request.getParameter("name") != null || !request.getParameter("name").equals("")) {
             String name = request.getParameter("name");
             String address = request.getParameter("address");
             String category = request.getParameter("category");
             result = ListingManager.retrieveListingList(name, address, category);
                 request.getPortletSession().setAttribute("resultList", result, PortletSession.APPLICATION_SCOPE);
        }
            } catch (Exception e) {
                // e.printStackTrace();
            }

        }


//RENDER VIEW from Portlet B - display search results.
    @RenderMode(name = "view")
    public void display(RenderRequest request, RenderResponse response)
            throws PortletException, IOException {

            ArrayList<Listing> resultList = (ArrayList<Listing>)request.getPortletSession().getAttribute("resultList",PortletSession.APPLICATION_SCOPE);

            if(resultList == null){
                resultList = new ArrayList<Listing>();
            }
            request.setAttribute("result", resultList);
    getPortletContext().getRequestDispatcher(response.encodeURL("/html/helloWorld.jsp")).include(request, response);

    }