UIViewRoot null with Spring 3 and mojarra

[malavock82]

Hi to everyone,

I'm trying to setup an application with Spring 3.0.6, Spring webflow 2.3, Spring security 2.0.7 and Mojarra 2.1.3

I see the login page all right, but after login I get an exception, due to the fact that UIViewRoot is null (I think looking at the source):

SEVERE: Servlet.service() for servlet Spring MVC Dispatcher Servlet threw exception
java.lang.NullPointerException
	at com.sun.faces.context.StateContext.startTrackViewModifications(StateContext.java:178)
	at com.sun.faces.application.view.FaceletViewHandlingStrategy.restoreView(FaceletViewHandlingStrategy.java:455)
	at com.sun.faces.application.view.MultiViewHandler.restoreView(MultiViewHandler.java:148)
	at org.springframework.faces.webflow.FlowViewHandler.restoreFlowView(FlowViewHandler.java:144)
	at org.springframework.faces.webflow.FlowViewHandler.restoreView(FlowViewHandler.java:83)
...

before this I was using myfaces 2.1.3 and everything worked fine, I had to switch to mojarra for some other compatibility issue.

my configuration files are:

faces-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<faces-config xmlns="http://java.sun.com/xml/ns/javaee" 
			  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
			  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_2_0.xsd"
			  version="2.0"> 
	<application>
    </application>
</faces-config>

spring_flow.xml

<?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:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx" 
       xmlns:webflow="http://www.springframework.org/schema/webflow-config" 
       xmlns:faces="http://www.springframework.org/schema/faces"
       xsi:schemaLocation="http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-3.0.xsd
        http://www.springframework.org/schema/tx 
        http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
        http://www.springframework.org/schema/webflow-config 
        http://www.springframework.org/schema/webflow-config/spring-webflow-config-2.3.xsd 
        http://www.springframework.org/schema/faces 
        http://www.springframework.org/schema/faces/spring-faces-2.2.xsd">

	<faces:resources />

    <bean class="org.springframework.faces.webflow.JsfFlowHandlerAdapter">
        <property name="flowExecutor" ref="flowExecutor" />
    </bean>


	<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
	    <property name="mappings">
            <value>
 	            /flows/*=flowController
            </value>
	    </property>
        <property name="defaultHandler">
            <bean class="org.springframework.web.servlet.mvc.UrlFilenameViewController"/>
        </property>
    </bean>
		
	<bean  class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter">
	</bean>
		

    <bean id="faceletsViewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
	     <property name="viewClass" value="org.springframework.faces.mvc.JsfView"/>
	     <property name="prefix" value="/WEB-INF/"/>
	     <property name="suffix" value=".xhtml"/>
    </bean>
		
	<bean id="flowController" class="org.springframework.webflow.mvc.servlet.FlowController">
	  <property name="flowExecutor" ref="flowExecutor"/>
	</bean>

	<webflow:flow-executor id="flowExecutor" flow-registry="flowRegistry">
		<webflow:flow-execution-listeners> 
			<webflow:listener ref="flowExecutionListener" /> 
			<webflow:listener ref="flowFacesContextLifecycleListener" /> 
		</webflow:flow-execution-listeners> 
	</webflow:flow-executor> 

	<bean id="flowExecutionListener" class="org.springframework.webflow.persistence.HibernateFlowExecutionListener"> 
		<constructor-arg ref="sessionFactory" />
		<constructor-arg ref="txnManager" /> 
	</bean> 
	
	<bean id="flowFacesContextLifecycleListener" class="org.springframework.faces.webflow.FlowFacesContextLifecycleListener" /> 
		
	<webflow:flow-registry id="flowRegistry" flow-builder-services="facesFlowBuilderServices">
	    <webflow:flow-location-pattern value="/WEB-INF/flows/**/*.xml"/>
	</webflow:flow-registry>

	<bean id="conversionService" class="org.springframework.faces.model.converter.FacesConversionService"/>
	
    <bean id="expressionParser" class="org.springframework.webflow.expression.el.WebFlowELExpressionParser">
         <constructor-arg>
             <bean class="org.jboss.el.ExpressionFactoryImpl"/>    
         </constructor-arg>
         <property name="conversionService" ref="conversionService"/>
     </bean>		

	<faces:flow-builder-services id="facesFlowBuilderServices" expression-parser="expressionParser" conversion-service="conversionService"/>
	
</beans>

web.xml

<?xml version = '1.0'?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
  xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" 
  version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee">

    <description>OBE AutoLoading</description>

	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>/WEB-INF/spring_context.xml</param-value>
	</context-param>

	<context-param>
		<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
		<param-value>.xhtml</param-value>
	</context-param>
	
	<context-param>
		<param-name>facelets.DEVELOPMENT</param-name>
		<param-value>true</param-value>
	</context-param>
	
    <context-param>
		<param-name>facelets.REFRESH_PERIOD</param-name>
		<param-value>1</param-value>
    </context-param>

	<context-param>
		<param-name>com.sun.faces.expressionFactory</param-name>
		<param-value>com.sun.el.ExpressionFactoryImpl</param-value>
	</context-param>
    
    <context-param>
		<param-name>javax.faces.PARTIAL_STATE_SAVING</param-name>
		<param-value>false</param-value>
	</context-param>

	<filter>
		<filter-name>extensionsFilter</filter-name>
		<filter-class>org.apache.myfaces.webapp.filter.ExtensionsFilter</filter-class>
		<init-param>
			<description>Size limit for uploaded files.
						 10 - 10 bytes, 10k - 10 KB, 10m - 10 MB, 1g - 1 GB
			</description>
      		<param-name>uploadMaxFileSize</param-name>
      		<param-value>100m</param-value>
    	</init-param>
    	<init-param>
			<description>Set the threshold size - files below this limit are stored in memory,
			 	        files above this limit are stored on disk.
						10 - 10 bytes, 10k - 10 KB, 10m - 10 MB, 1g - 1 GB
			</description>
			<param-name>uploadThresholdSize</param-name>
			<param-value>100k</param-value>
		</init-param>
	</filter>

	<filter-mapping>
    	<filter-name>extensionsFilter</filter-name>
    	<servlet-name>Faces Servlet</servlet-name>
	</filter-mapping>

	
	<filter-mapping>
		<filter-name>extensionsFilter</filter-name>
		<servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
 	</filter-mapping>

	<filter-mapping>
    	<filter-name>extensionsFilter</filter-name>
		<url-pattern>/faces/myFacesExtensionResource/*</url-pattern>
	</filter-mapping>

	<filter-mapping>
		<filter-name>extensionsFilter</filter-name>
		<url-pattern>*.xhtml</url-pattern>
	</filter-mapping>
	
	<filter-mapping>
        <filter-name>extensionsFilter</filter-name>
        <url-pattern>/faces/*</url-pattern>
	</filter-mapping>
	
	<context-param>
		<param-name>org.apache.myfaces.ADD_RESOURCE_CLASS</param-name>
		<param-value>org.apache.myfaces.renderkit.html.util.DefaultAddResource</param-value>
	</context-param>
	
	<context-param>
    	<param-name>org.apache.myfaces.CHECK_EXTENSIONS_FILTER</param-name>
		<param-value>true</param-value>
	</context-param>
  
    <filter>
	  <filter-name>springSecurityFilterChain</filter-name>
	  <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
	</filter>
	
	<filter-mapping>
	  <filter-name>springSecurityFilterChain</filter-name>
	  <url-pattern>/*</url-pattern>
	</filter-mapping>
      
	<listener>
        <listener-class>org.springframework.security.ui.session.HttpSessionEventPublisher</listener-class>
    </listener>    
	
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	
	<listener>
	    <listener-class>org.springframework.web.context.request.RequestContextListener </listener-class>
	</listener>

    <servlet>
		<servlet-name>Faces Servlet</servlet-name> 
	  	<servlet-class>javax.faces.webapp.FacesServlet</servlet-class> 
	</servlet>
	<servlet-mapping>
	  	<servlet-name>Faces Servlet</servlet-name> 
	  	<url-pattern>*.xhtml</url-pattern> 
	</servlet-mapping>

    <servlet>
    	<servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value></param-value>
		</init-param>
		<load-on-startup>2</load-on-startup>
    </servlet>

    <servlet-mapping>
		<servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
		<url-pattern>/spring/*</url-pattern>
    </servlet-mapping>
    
 
</web-app>

It's the first time a start a Spring application from scratch, any help is very appreciated, thank you

Mattia

[okossak]

Hello malavock82,

did you solve the problem? I have the same problem using now Mojarra JSF 2.1.5, Spring 3.0.6.RELEASE and (!) spring-webflow 2.3.0.BUILD-SNAPSHOT.

Kind regards
okossak

[malavock82]

Hi Okossak,

at the time I had to drop the issue and remove Mojarra. Now after 1 year I come back to the same issue... did you manage to solve it yourself?