FACELETS: Não consigo fazer o exemplo da documentação funcionar

package tutorial;

import java.io.Serializable;

import java.util.Random;

import javax.faces.application.FacesMessage;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.validator.ValidatorException;


@SuppressWarnings("serial")
public class NumberBean implements Serializable {
	protected final static Random rand = new Random();

	protected int min;
	protected int max;
	protected int guess;
	protected int actual;

	// Default Constructor
	public NumberBean() {
		this.min = 1;
		this.max = 10;
	}

	// called by JSF to validate user input
	public void validate(FacesContext context, UIComponent component, Object value)
	throws ValidatorException {

		// coerce the value to an int
		try {
			int param = Integer.parseInt(value.toString());

			// validate param
			if (param > this.max || param < this.min) {
				FacesMessage msg = new FacesMessage("Guess must be between "+this.min+" and "+this.max);
				throw new ValidatorException(msg);
			}
		} catch (NumberFormatException e) {
			FacesMessage msg = new FacesMessage("Must be a number");
			throw new ValidatorException(msg);
		}
	}
	    
	// lazy generate our actual value
	public synchronized int getActual() {
		if (this.actual == 0) {
			this.actual = rand.nextInt(this.max - this.min);
			this.actual += this.min;
		}
		return this.actual;
	}
	  
	// our message for the response
	public String getMessage() {    
	  if (this.guess == this.getActual()) {
	    return "Sweet, you got it right!";
	  } else if (this.guess < this.getActual()) {
	    return "Sorry, try something higher";
	  } else {
	    return "Too bad, go lower";
	  }
	}
	  
	// other bean properties
	public int getMin() { return this.min; }
	public int getMax() { return this.max; }
	public int getGuess() { return this.guess; }
	    
	public void setMin(int min) { this.min = min; }
	public void setMax(int max) { this.max = max; }
	public void setGuess(int guess) { this.guess = guess; }

}

<?xml version="1.0" encoding="UTF-8"?>  
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   
        xmlns="http://java.sun.com/xml/ns/javaee"   
        xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"   
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"   
        id="WebApp_ID" version="2.4">  
  <display-name>carona-web</display-name>  
   
    <context-param>  
        <param-name>javax.faces.CONFIG_FILES</param-name>  
        <param-value>/WEB-INF/faces-config.xml</param-value>  
    </context-param>  
   
    <context-param>  
        <param-name>facelets.DEVELOPMENT</param-name>  
        <param-value>true</param-value>  
    </context-param>  
      
    <context-param>  
        <param-name>com.sun.faces.verifyObjects</param-name>  
        <param-value>true</param-value>  
    </context-param>
    
    <context-param>
    	<param-name>com.sun.faces.validateXml</param-name>
    	<param-value>true</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>javax.faces.STATE_SAVING_METHOD</param-name>  
        <param-value>server</param-value>  
    </context-param>  
   
    <servlet>  
      	<servlet-name>Faces Servlet</servlet-name>  
       	<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>  
       	<load-on-startup>1</load-on-startup>  
    </servlet>  
        
    <servlet-mapping>  
        <servlet-name>Faces Servlet</servlet-name>  
        <url-pattern>*.jsf</url-pattern>  
    </servlet-mapping>  
     
</web-app>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE faces-config PUBLIC "-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.2//EN"
	"http://java.sun.com/dtd/web-facesconfig_1_1.dtd">
<faces-config>
	<application>
    	<locale-config>
      		<default-locale>en</default-locale>
    	</locale-config>
		<view-handler>com.sun.facelets.FaceletViewHandler</view-handler>
  	</application>
  	
	<managed-bean>
    	<managed-bean-name>NumberBean</managed-bean-name>
    	<managed-bean-class>tutorial.NumberBean</managed-bean-class>
    	<managed-bean-scope>session</managed-bean-scope>
    	<managed-property>
      		<property-name>min</property-name>
      		<value>1</value>
    	</managed-property>
    	<managed-property>
      		<property-name>max</property-name>
      		<value>10</value>
    	</managed-property>
  	</managed-bean>	  	
</faces-config>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:ui="http://java.sun.com/jsf/facelets">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Facelets: Number Guess Tutorial</title>
<style type="text/css">
<!--
body {
  font-family: Verdana, Arial, Helvetica, sans-serif;
  font-size: small;
}
-->
</style>
</head>

<body>
<h1>
  <ui:insert name="title">Default Title</ui:insert>
</h1>
<p>
  <ui:insert name="body">Default Body</ui:insert>
</p>
</body>

</html>

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:h="http://java.sun.com/jsf/html">
<body>

<!-- This text above will not be displayed. -->

<ui:composition template="/template.xhtml">

<!-- This text above will not be displayed. -->

  <ui:define name="title">
    I'm thinking of a number from #{NumberBean.min} to #{NumberBean.max}.  Can you guess it?
  </ui:define>

<!-- This text above will not be displayed. -->

  <ui:define name="body">
    <h:form id="helloForm">
      <h:inputText type="text" id="userNo" value="#{NumberBean.guess}" validator="#{NumberBean.validate}"/>
      <br/>
      <h:commandButton type="submit" id="submit" action="success" value="Submit" />
      <br/>
      <h:message showSummary="true" showDetail="false" style="color: red; font-weight: bold;" id="errors1" for="userNo"/>
    </h:form>
  </ui:define>

<!-- This text above will not be displayed. -->
  
</ui:composition>

<!-- This text above will not be displayed. -->

</body>
</html>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:h="http://java.sun.com/jsf/html">
<body>

<ui:composition template="/template.xhtml">

  <ui:define name="title">
    #{NumberBean.message}
  </ui:define>
  
  <ui:define name="body">
    <form jsfc="h:form">
    <input jsfc="h:commandButton" type="submit" id="back" value="Back" action="success"/>
    </form>
  </ui:define>
  
</ui:composition>

</body>
</html>