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Asked: 2026-06-02T20:01:30+00:00

My problem is that when I run a very simple JSF application the EL

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My problem is that when I run a very simple JSF application the EL tags are not getting rendered.

For example, this code:

<html lang="en" xmlns="http://www.w3.org/1999/xhtml"
    xmlns:h="http://java.sun.com/jsf/html">
<h:head>
    <title>Facelets Hello World</title>
</h:head>
<h:body> #{hello.world} </h:body>
</html>

Is displayed as #{hello.word} within the browser, rather than “Hello World!” as should be returned by my managed bean:

@ManagedBean(name = "hello")
public class Hello {
    public String getWorld() {
        return "Hello World!";
    }
}

I have seen this question JSF 2.0 EL tags don't render in browser already, but it didn’t help me. And, according to what I’ve read, Tomcat 7 claims to provide both API and implementation of the EL 2.2 standard.

I’m using the following software/versions:

  • Eclipse Indigo 3.7.2 Java EE edition
  • Eclipse plugin: m2e 1.0.2
  • Eclipse plugin: m2e-wtp 0.15.2
  • Maven 2
  • Tomcat 7 (have tried the following versions)
    • Tomcat 7.0.10
    • Tomcat 7.0.26
    • Tomcat 7.0.27
  • MyFaces 2.1.6
  • Oracle JDK 1.7.0

If more information is required I’ll gladly provide it.

[EDIT1]

I’m not even sure if this is necessary/correct, but adding the following to web.xml didn’t solve the problem:

<context-param>
    <param-name>org.apache.myfaces.EXPRESSION_FACTORY</param-name>
    <param-value>org.apache.el.ExpressionFactoryImpl</param-value>
</context-param>

[EDIT2]

web.xml:

<?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_3_0.xsd"
    version="3.0">
    <display-name>jsf-facelets</display-name>
    <context-param>
        <param-name>javax.faces.PROJECT_STAGE</param-name>
        <param-value>Development</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>*.html</url-pattern>
    </servlet-mapping>
    <context-param>
        <param-name>javax.faces.DEFAULT_SUFFIX</param-name>
        <param-value>.xhtml</param-value>
    </context-param>
    <context-param>
        <param-name>org.apache.myfaces.EXPRESSION_FACTORY</param-name>
        <param-value>org.apache.el.ExpressionFactoryImpl</param-value>
    </context-param>
    <context-param>
        <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
        <param-value>client</param-value>
    </context-param>
    <context-param>
        <param-name>javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL</param-name>
        <param-value>true</param-value>
    </context-param>
    <context-param>
        <param-name>org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION</param-name>
        <param-value>20</param-value>
    </context-param>
    <context-param>
        <param-name>org.apache.myfaces.SERIALIZE_STATE_IN_SESSION</param-name>
        <param-value>true</param-value>
    </context-param>
    <context-param>
        <param-name>org.apache.myfaces.COMPRESS_STATE_IN_SESSION</param-name>
        <param-value>true</param-value>
    </context-param>
    <context-param>
        <param-name>org.apache.myfaces.COMPRESS_STATE_IN_CLIENT</param-name>
        <param-value>true</param-value>
    </context-param>
    <context-param>
        <param-name>org.apache.myfaces.ALLOW_JAVASCRIPT</param-name>
        <param-value>true</param-value>
    </context-param>
    <context-param>
        <param-name>org.apache.myfaces.PRETTY_HTML</param-name>
        <param-value>true</param-value>
    </context-param>
    <context-param>
        <param-name>org.apache.myfaces.DETECT_JAVASCRIPT</param-name>
        <param-value>false</param-value>
    </context-param>
    <context-param>
        <param-name>org.apache.myfaces.AUTO_SCROLL</param-name>
        <param-value>true</param-value>
    </context-param>
    <context-param>
        <param-name>org.apache.myfaces.SECRET</param-name>
        <param-value>NzY1NDMyMTA=</param-value>
    </context-param>
    <listener>
        <listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class>
    </listener>
    <session-config>
        <session-timeout>30</session-timeout>
    </session-config>
</web-app>
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1 Answer

  1. Editorial Team

    You should access your pages with .html extension like that: myPage.html

    cause of your servlet-mapping

    <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.html</url-pattern>
</servlet-mapping>
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