mailreader2/src/main/resources/mailreader-default.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
        "http://struts.apache.org/dtds/struts-2.5.dtd">

<struts>

    <package name="mailreader-default" namespace="/" extends="struts-default">

        <interceptors>

            <interceptor name="authentication"
                         class="org.apache.struts.examples.mailreader2.AuthenticationInterceptor"/>

            <interceptor-stack name="user">
                <interceptor-ref name="authentication"/>
                <interceptor-ref name="defaultStack"/>
            </interceptor-stack>

            <interceptor-stack name="user-submit">
                <interceptor-ref name="tokenSession"/>
                <interceptor-ref name="user"/>
            </interceptor-stack>

            <interceptor-stack name="guest">
                <interceptor-ref name="defaultStack"/>
            </interceptor-stack>

        </interceptors>

        <default-interceptor-ref name="user"/>

        <global-results>
            <result name="error">/pages/Error.jsp</result>
            <result name="invalid.token">/pages/Error.jsp</result>
            <result name="login" type="redirectAction">Login_input</result>
        </global-results>

        <global-exception-mappings>
            <exception-mapping
                    result="error"
                    exception="java.lang.Throwable"/>
        </global-exception-mappings>

    </package>

</struts>