Remove synchronous AJAX support (#11254)

SJAX was used in Vaadin 6 only for window close events,
and those are not supported in Vaadin 7.

Change-Id: I3ca7137d5a16252f63051314743e0bee2890caf1

2 files changed, 0 insertions, 41 deletions

diff --git a/server/src/com/vaadin/server/VaadinPortlet.java b/server/src/com/vaadin/server/VaadinPortlet.java
index 2abf140a3d..cc92edf6b2 100644
--- a/server/src/com/vaadin/server/VaadinPortlet.java
+++ b/server/src/com/vaadin/server/VaadinPortlet.java
@@ -417,9 +417,6 @@ public class VaadinPortlet extends GenericPortlet implements Constants,
                 VaadinPortletSession vaadinSession = null;
 
                 try {
-                    // TODO What about PARAM_UNLOADBURST &
-                    // redirectToApplication??
-
                     vaadinSession = (VaadinPortletSession) getService()
                             .findVaadinSession(vaadinRequest);
                     if (vaadinSession == null) {
diff --git a/server/src/com/vaadin/server/VaadinServlet.java b/server/src/com/vaadin/server/VaadinServlet.java
index fefa8699e1..599c3d6bec 100644
--- a/server/src/com/vaadin/server/VaadinServlet.java
+++ b/server/src/com/vaadin/server/VaadinServlet.java
@@ -45,7 +45,6 @@ import com.vaadin.server.communication.HeartbeatHandler;
 import com.vaadin.server.communication.PublishedFileHandler;
 import com.vaadin.server.communication.UIInitHandler;
 import com.vaadin.server.communication.UidlRequestHandler;
-import com.vaadin.shared.ApplicationConstants;
 import com.vaadin.util.CurrentInstance;
 
 @SuppressWarnings("serial")
@@ -263,24 +262,6 @@ public class VaadinServlet extends HttpServlet implements Constants {
         VaadinSession vaadinSession = null;
 
         try {
-            // If a duplicate "close application" URL is received for an
-            // application that is not open, redirect to the application's main
-            // page.
-            // This is needed as e.g. Spring Security remembers the last
-            // URL from the application, which is the logout URL, and repeats
-            // it.
-            // We can tell apart a real onunload request from a repeated one
-            // based on the real one having content (at least the UIDL security
-            // key).
-            if (requestType == RequestType.UIDL
-                    && request.getParameterMap().containsKey(
-                            ApplicationConstants.PARAM_UNLOADBURST)
-                    && request.getContentLength() < 1
-                    && getService().getExistingSession(request, false) == null) {
-                redirectToApplication(request, response);
-                return;
-            }
-
             // Find out the service session this request is related to
             vaadinSession = getService().findVaadinSession(request);
             if (vaadinSession == null) {
@@ -618,14 +599,6 @@ public class VaadinServlet extends HttpServlet implements Constants {
             VaadinServletResponse response) throws IOException,
             ServletException {
 
-        if (isOnUnloadRequest(request)) {
-            /*
-             * Request was an unload request (e.g. window close event) and the
-             * client expects no response if it fails.
-             */
-            return;
-        }
-
         try {
             SystemMessages ci = getService().getSystemMessages(
                     ServletPortletHelper.findLocale(null, null, request),
@@ -665,13 +638,6 @@ public class VaadinServlet extends HttpServlet implements Constants {
     private void handleServiceSecurityException(VaadinServletRequest request,
             VaadinServletResponse response) throws IOException,
             ServletException {
-        if (isOnUnloadRequest(request)) {
-            /*
-             * Request was an unload request (e.g. window close event) and the
-             * client expects no response if it fails.
-             */
-            return;
-        }
 
         try {
             /*
@@ -1132,10 +1098,6 @@ public class VaadinServlet extends HttpServlet implements Constants {
         return false;
     }
 
-    private boolean isOnUnloadRequest(HttpServletRequest request) {
-        return request.getParameter(ApplicationConstants.PARAM_UNLOADBURST) != null;
-    }
-
     /**
      * Remove any heading or trailing "what" from the "string".
      *