Spring MVC portlet in Liferay 6.2, Model properties are null upon form post - spring

Question

I've tried to clone a Spring MVC Portlet project but upon posting the form todo properties are all null.
Repo is available on Github.
Here is the Controller code
#Controller
#RequestMapping("VIEW")
public class ToDoListController {
#RenderMapping
public String view() {
return "list";
}
#ActionMapping
public void save(#Valid ToDo toDo, BindingResult result, #CookieValue("JSESSIONID") String jsessionid,
PortletSession session, ModelMap modelMap) {
if (!result.hasErrors()) {
// could use entityManager to persist; put in session for this example
List<ToDo> toDos = (List<ToDo>) session.getAttribute("toDos");
if (toDos == null) {
toDos = new ArrayList<ToDo>();
}
toDos.add(toDo);
session.setAttribute("toDos", toDos);
modelMap.put("msg", String.format("You added a TODO: %s", toDo.getTitle()));
}
}
#ModelAttribute
private ToDo loadModel() {
return new ToDo();
}
}
Here is the View:
<%# page contentType="text/html" %>
<%# taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%# taglib prefix="portlet" uri="http://java.sun.com/portlet_2_0" %>
<%# taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<c:if test="${msg ne null}">
<div class="portlet-msg-success"><c:out value="${msg}" /></div>
</c:if>
<portlet:actionURL var="save" />
<form:form modelAttribute="toDo" action="${save}" method="POST">
<fieldset>
<legend>Add a TODO</legend>
<div>
<form:label path="title" cssStyle="display:block">Title:</form:label>
<form:input path="title" />
<form:errors path="title" cssClass="portlet-msg-error" />
</div>
<div>
<form:label path="due" cssStyle="display:block">Due (MM/DD/YYYY):</form:label>
<form:input path="due" />
<form:errors path="due" cssClass="portlet-msg-error" />
</div>
<div>
<form:label path="description" cssStyle="display:block">Description:</form:label>
<form:textarea path="description" />
<form:errors path="description" cssClass="portlet-msg-error" />
</div>
<div>
<input type="submit" value="Save" />
</div>
</fieldset>
</form:form>
And here is the Context:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<mvc:annotation-driven validator="validator" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="cache" value="true" />
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/view/" />
<property name="suffix" value=".jsp" />
</bean>
<bean id="validator"
class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" />
<bean id="annotationMethodHandlerAdapter"
class="org.springframework.web.portlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="webBindingInitializer">
<bean id="configurableWebBindingInitializer"
class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer">
<property name="validator">
<ref bean="validator" />
</property>
</bean>
</property>
</bean>
</beans>
=====================================================================
Update:
Here is the working version: https://github.com/jzinedine/FirstPortlet

Answer 1

You need to set <requires-namespaced-parameters>false</requires-namespaced-parameters> in your liferay-portlet.xml when using Spring MVC with Liferay 6.2. It is explained on Liferay 6.2 documentation at the end of this page.