Mule - Expression recipient list router

The following example is on the usage of the expression-recipient-list-router. This router can be used to extract the endpoints from the message and route it to the corresponding component.

Java Classes:

CreateXmlMessageComponent:

package com.expressrecipienttransformers;

public class CreateXmlMessageComponent {

    public String createMessage(String msg) {

        StringBuilder sb = new StringBuilder();
        sb.append("<message>");
        sb.append("<recipientList>");
        sb.append("<recipient>vm://display-message-channel</recipient>");
        sb.append("<recipient>vm://compute-message-channel</recipient>");
        sb.append("</recipientList>");
        sb.append("<info>");
        sb.append("Hi there");
        sb.append("</info>");
        sb.append("</message>");
        
        
        return sb.toString();
    }
} 

DisplayMessageComponent:

package com.expressrecipienttransformers;

public class DisplayMessageComponent {

    public void displayMessage(String msg) {
        
        System.out.println("Into displaymessage");
        System.out.println(msg);
    }
} 

ComputeMsgComponent:

package com.expressrecipienttransformers;

public class ComputeMsgComponent {

    public void compute(String msg) {
        
        System.out.println("Into compute component");
        System.out.println(msg.length());
    }
} 

mule-config.xml:

<?xml version="1.0" encoding="UTF-8"?>
<mule xmlns="http://www.mulesource.org/schema/mule/core/2.2"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:stdio="http://www.mulesource.org/schema/mule/stdio/2.2"
    xmlns:vm="http://www.mulesource.org/schema/mule/vm/2.2"
    xsi:schemaLocation="
          http://www.mulesource.org/schema/mule/core/2.2 http://www.mulesource.org/schema/mule/core/2.2/mule.xsd
          http://www.mulesource.org/schema/mule/stdio/2.2 http://www.mulesource.org/schema/mule/stdio/2.2/mule-stdio.xsd
          http://www.mulesource.org/schema/mule/vm/2.2 http://www.mulesource.org/schema/mule/vm/2.2/mule-vm.xsd">

    <stdio:connector name="stdioIN" promptMessage="Press any key to continue" />

    <model name="expression-recipient-list-model">
        <service name="expression-recipient-list-serviec">
            <inbound>
                <stdio:inbound-endpoint
                    connector-ref="stdioIN" system="IN" />
            </inbound>
            <component
                class="com.expressrecipienttransformers.CreateXmlMessageComponent"></component>
            <outbound>
                <expression-recipient-list-router
                    expression="/message/recipientList/recipient"
                    evaluator="xpath" />
            </outbound>
        </service>

        <service name="DisplayService">
            <inbound>
                <vm:inbound-endpoint path="display-message-channel" />
            </inbound>
            <component
                class="com.expressrecipienttransformers.DisplayMessageComponent" />
        </service>

        <service name="ComputeService">
            <inbound>
                <vm:inbound-endpoint path="compute-message-channel" />
            </inbound>
            <component
                class="com.expressrecipienttransformers.ComputeMsgComponent" />
        </service>
    </model>
</mule