register the UserManagementService in gwt.ui bundle's web.xml, solving the cross-bundle RPC issue

java/com.sap.sailing.gwt.ui/WEB-INF/web.xml

@@ -90,6 +90,16 @@
 		<servlet-name>DataMiningService</servlet-name>
 		<url-pattern>/service/datamining</url-pattern>
 	</servlet-mapping>
+	<servlet>
+		<display-name>User Management Service</display-name>
+		<servlet-name>UserManagementService</servlet-name>
+		<servlet-class>com.sap.sse.security.ui.server.UserManagementServiceImpl</servlet-class>
+	</servlet>
+	<servlet-mapping>
+		<servlet-name>UserManagementService</servlet-name>
+		<url-pattern>/service/usermanagement</url-pattern>
+	</servlet-mapping>
+
 	
 	<!-- enabling remote logging -->
 	<servlet>

java/com.sap.sailing.server.test/META-INF/MANIFEST.MF

@@ -19,7 +19,8 @@ Require-Bundle: com.sap.sailing.domain,
  org.junit4;bundle-version="4.8.2",
  com.sap.sailing.domain.test,
  org.mockito.mockito-core;bundle-version="1.9.5",
- com.sap.sse.common
+ com.sap.sse.common,
+ org.eclipse.jetty.server;bundle-version="9.2.2"
 Import-Package: com.sap.sailing.server.gateway.jaxrs,
  com.sap.sailing.server.gateway.jaxrs.spi,
  org.json.simple,

java/com.sap.sse.security.ui/WEB-INF/web.xml

@@ -31,7 +31,6 @@
 		<dispatcher>ERROR</dispatcher>
 	</filter-mapping>
 
-
 	<servlet>
 		<display-name>User Management Service</display-name>
 		<servlet-name>UserManagementService</servlet-name>

java/com.sap.sse.security.ui/src/main/java/com/sap/sse/security/ui/loginpanel/LoginPanel.java

@@ -44,7 +44,6 @@ public class LoginPanel extends FlowPanel implements UserStatusEventHandler {
 
     static {
         EntryPointHelper.registerASyncService((ServiceDefTarget) userManagementService,
-                RemoteServiceMappingConstants.WEB_CONTEXT_PATH,
                 RemoteServiceMappingConstants.userManagementServiceRemotePath);
     }
 
@@ -103,7 +102,6 @@ public class LoginPanel extends FlowPanel implements UserStatusEventHandler {
         infoPanel.setWidget(loginPanel);
         wrapperPanel.add(infoPanel);
         add(wrapperPanel);
-
         addUserStatusEventHandler(this);
         registerStorageListener();
         updateUser();
@@ -112,11 +110,9 @@ public class LoginPanel extends FlowPanel implements UserStatusEventHandler {
     private void initLoginContent() {
         loginPanel = new FormPanel();
         loginPanel.addSubmitHandler(new SubmitHandler() {
-
             @Override
             public void onSubmit(SubmitEvent event) {
                 userManagementService.login(name.getText(), password.getText(), new AsyncCallback<SuccessInfo>() {
-
                     @Override
                     public void onFailure(Throwable caught) {
                         Window.alert(caught.getMessage());
@@ -134,9 +130,7 @@ public class LoginPanel extends FlowPanel implements UserStatusEventHandler {
                 });
             }
         });
-
         FlowPanel formContent = new FlowPanel();
-
         Label nameLabel = new Label("Name: ");
         formContent.add(nameLabel);
         name = new TextBox();

java/com.sap.sse.security.ui/src/main/java/com/sap/sse/security/ui/server/UserManagementServiceImpl.java

@@ -1,5 +1,8 @@
 package com.sap.sse.security.ui.server;
 
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
@@ -14,6 +17,7 @@ import java.util.concurrent.FutureTask;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpSession;
 
 import org.apache.shiro.SecurityUtils;
@@ -23,6 +27,7 @@ import org.osgi.framework.BundleContext;
 import org.osgi.util.tracker.ServiceTracker;
 
 import com.google.gwt.user.server.rpc.RemoteServiceServlet;
+import com.google.gwt.user.server.rpc.SerializationPolicy;
 import com.sap.sse.security.Credential;
 import com.sap.sse.security.SecurityService;
 import com.sap.sse.security.SessionUtils;
@@ -86,6 +91,32 @@ public class UserManagementServiceImpl extends RemoteServiceServlet implements U
         return "Hello";
     }
 
+    @Override
+    protected SerializationPolicy doGetSerializationPolicy(HttpServletRequest request, String moduleBaseURL,
+            String strongName) {
+        final String emulatedContextPath = "/"+(moduleBaseURL.split("/")[3]);
+        try {
+            final Method getContextPath = HttpServletRequest.class.getDeclaredMethod("getContextPath");
+            HttpServletRequest proxyRequestAnsweringWithEmulatedContextPath = (HttpServletRequest) Proxy
+                    .newProxyInstance(request.getClass().getClassLoader(), new Class[] { HttpServletRequest.class },
+                            new InvocationHandler() {
+                                @Override
+                                public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+                                    if (method.equals(getContextPath)) {
+                                        return emulatedContextPath;
+                                    } else {
+                                        return method.invoke(proxy, args);
+                                    }
+                                }
+                            });
+            return super.doGetSerializationPolicy(proxyRequestAnsweringWithEmulatedContextPath, moduleBaseURL, strongName);
+        } catch (NoSuchMethodException | SecurityException e) {
+            logger.log(Level.SEVERE, "Error obtaining serialization policy for " + request + " with moduleBaseURL "
+                    + moduleBaseURL, e);
+            throw new RuntimeException(e);
+        }
+    }
+
     @Override
     public Collection<UserDTO> getUserList() {
         List<UserDTO> users = new ArrayList<>();