Trying to get JSF(Faces) working within Spring WebFlow - jsf

Question

I been trying to add some JSF(Face) code into my Spring Webflow project but I am getting the following error:
java.lang.IllegalStateException: FacesContext has not been initialized within the current Web Flow request. Check the configuration for your <webflow:flow-executor>. For JSF you will need FlowFacesContextLifecycleListener configured as one of its flow execution listeners.
Here is my flow.xml file
<?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: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/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">
<!-- Executes flows: the central entry point into the Spring Web Flow system -->
<webflow:flow-executor id="flowExecutor">
<webflow:flow-execution-listeners>
<webflow:listener ref="facesContextListener"/>
</webflow:flow-execution-listeners>
</webflow:flow-executor>
<!-- The registry of executable flow definitions -->
<webflow:flow-registry id="flowRegistry" flow-builder-services="flowBuilderServices" base-path="/WEB-INF">
<webflow:flow-location-pattern value="**/*-flow.xml" />
</webflow:flow-registry>
<!-- Configures the Spring Web Flow JSF integration -->
<faces:flow-builder-services id="flowBuilderServices" />
<!-- A listener maintain one FacesContext instance per Web Flow request. -->
<bean id="facesContextListener"
class="org.springframework.faces.webflow.FlowFacesContextLifecycleListener" />
</beans>
and here is my flow:
<flow xmlns="http://www.springframework.org/schema/webflow"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/webflow
http://www.springframework.org/schema/webflow/spring-webflow-2.0.xsd">
<var name="customer" class="org.smith.webflowtemplate.domain.Customer"/>
<view-state id="checkbox-input" model="customer" >
<transition on="submit" to="preview" validate="false"/>
<transition on="cancel" to="thanks" validate="false"/>
</view-state>
<view-state id="preview" model="customer">
<transition on="accept" to="endState"/>
</view-state>
<end-state id="endState" view="/index.jsp" />
</flow>

Answer 1

You need to add a Faces Context listener like this:
<flow-executor id="flowExecutor">
<flow-execution-listeners>
<listener ref="facesContextListener" />
</flow-execution-listeners>
</flow-executor>
<beans:bean id="facesContextListener" class="org.springframework.faces.webflow.FlowFacesContextLifecycleListener" />