I want to deploy my JSF2 app on tomcat using mvn tomcat:run . I

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Asked: June 17, 20262026-06-17T03:59:08+00:00 2026-06-17T03:59:08+00:00

I want to deploy my JSF2 app on tomcat using mvn tomcat:run . I

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I want to deploy my JSF2 app on tomcat using mvn tomcat:run. I did compile it correctly previously using the mvn clean install command.
Tomcat is saying to me INFO: Starting Coyote HTTP/1.1 on http-8080

I wonder if I did configure my welcome page correctly.
This is my web.xml:

 <?xml version="1.0" encoding="UTF-8"?>
<web-app 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-app_2_5.xsd"
    version="2.5">

    <display-name>Archetype Created Web Application</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>*.xhtml</url-pattern>
    </servlet-mapping>

    <welcome-file-list>
        <welcome-file>home.xhtml</welcome-file>
    </welcome-file-list>


</web-app>

And this is my pom.xml just to double check that the artifactid is correct:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.bogus</groupId>
    <artifactId>jsf2_tutorial</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>jsf2_tutorial Maven Webapp</name>
    <url>http://maven.apache.org</url>

    <repositories>
        <repository>
            <id>maven2-repository.dev.java.net</id>
            <name>Java.net Repository for Maven</name>
            <url>http://download.java.net/maven/2</url>
        </repository>
    </repositories>

    <dependencies>

        <dependency>
            <groupId>com.sun.faces</groupId>
            <artifactId>jsf-api</artifactId>
            <version>2.1.0-b03</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>com.sun.faces</groupId>
            <artifactId>jsf-impl</artifactId>
            <version>2.1.0-b03</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.3.2</version>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

Just i am going to paste the last bit, the home.xhtml to make sure it is also correct:

<!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:f="http://java.sun.com/jsf/core"
    xmlns:h="http://java.sun.com/jsf/html">
    <h:head>
        <title>Hello JSF 2!</title>
    </h:head>
    <h:body>
       #{welcome.message}
    </h:body>
</html>

The error when I navigate to the welcome page is:

HTTP status 500
In the url I notice I had a typo. Now I enter the correct URL but the problem is:

    type Exception report

    message

    description The server encountered an internal error () that prevented it from fulfilling this request.

    exception

javax.servlet.ServletException: Class javax.faces.webapp.FacesServlet is not a Servlet
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
    org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
    org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
    org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
    java.lang.Thread.run(Thread.java:662)

root cause

java.lang.ClassCastException: javax.faces.webapp.FacesServlet cannot be cast to javax.servlet.Servlet
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
    org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
    org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
    org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
    java.lang.Thread.run(Thread.java:662)

    note The full stack trace of the root cause is available in the Apache Tomcat/6.0.29 logs.

Update

I got rid of the exception by removing the servlet-api dependency from the pom.xml

 <dependency>  <groupId>javax.servlet</groupId> 
 <artifactId>servlet-api</artifactId>  <version>2.5</version> 
 </dependency>

The page now loads but the message is not being displayed.
This is how the java part of this app looks like:

package org.bogus;
import javax.faces.bean.ManagedBean;

@ManagedBean(name = "welcome", eager = true)
public class WelcomeBean {
    public WelcomeBean() {
        System.out.println("WelcomeBean instantiated");
    }
    public String getMessage() {
        return "I'm alive!";
    }
}

This example is almost the same as in the official JSF tutorial at oracle: http://docs.oracle.com/javaee/6/tutorial/doc/gjaam.html

I included the <load-on-startup>1</load-on-startup> but still I don’t see the message in the console or in the page.
Maybe there is still something wrong with the configurations.
Any idea?

Update
I just included the faces-config.xml file under WEB-INF but still does not work:

<?xml version="1.0" encoding="UTF-8"?>
<!-- This file is not required if you don't need any extra configuration. -->
<faces-config version="2.1"
   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_1.xsd">

   <!-- Write your navigation rules here. -->

   <application>
        <locale-config>
            <default-locale>en</default-locale>
            <supported-locale>en</supported-locale>
        </locale-config>
   </application>

</faces-config>

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1 Answer

Editorial Team · Answer 1 · 2026-06-17T03:59:10+00:00

You’ve basically 2 problems:

JSF2 requires a minimum of Servlet 2.5 (Tomcat 6 compatible), yet your web.xml is declared conform Servlet 2.3 (Tomcat 4 compatible). You should declare your web.xml to highest version compatible with the servletcontainer. Given that it’s Tomcat 6, which is a Servlet 2.5 container, declare it as Servlet 2.5 instead.
```
<?xml version="1.0" encoding="UTF-8"?>
<web-app 
    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-app_2_5.xsd"
    version="2.5">

    

</web-app>
```
(yes, without the doctype!)
@ManagedBean of Mojarra 2.1.0 doesn’t work on Tomcat and Jetty due to accidently inserted Glassfish-specific code in the annotation scanning code. See also issue 1937. You need to upgrade to at least Mojarra 2.1.1 (or just the currently available 2.1.17). An alternative is to manually register the managed bean in faces-config.xml, but that’s plain clumsy.

Unrelated to the concrete problem, the @ManagedBean(eager=true) works on @ApplicationScoped only. Just omit it.

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