Basic imap Mail Receiver with Spring Integration not working

[Lithium]

Hi all,
I am new to Spring Integration but i have been going through several sample examples on how to implement a simple poll based imap store mail receiver using spring integration.
I followed certain tutorials and came up with an app which unfortunately does not seem to work. Been looking around to see where the issue lies but i am afraid it might be something really fundamental.
In any case, i would be grateful if someone could point out my mistake and let me know where i went wrong.

Here is my application-context.xml file

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:mail="http://www.springframework.org/schema/integration/mail"
       xmlns:int="http://www.springframework.org/schema/integration"
       xmlns:util="http://www.springframework.org/schema/util"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
            http://www.springframework.org/schema/integration/mail
            http://www.springframework.org/schema/integration/mail/spring-integration-mail-2.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.0.xsd">
	
    <util:properties id="javaMailProperties">
        <prop key="mail.imap.socketFactory.class">javax.net.ssl.SSLSocketFactory</prop>
        <prop key="mail.imap.socketFactory.fallback">false</prop>
        <prop key="mail.store.protocol">imaps</prop>
        <prop key="mail.debug">true</prop>
    </util:properties>
 
    <mail:inbound-channel-adapter id="imapAdapter"
                                      store-uri="imaps://username:password@imap.gmail.com/INBOX"                                    
                                      channel="receiveEmailChannel"                                         
                                      should-delete-messages="false"
                                      should-mark-messages-as-read="true"                                     
                                      auto-startup="true"
                                      java-mail-properties="javaMailProperties">
        <int:poller fixed-rate="5000" max-messages-per-poll="10"/>
    </mail:inbound-channel-adapter>
 
    <int:channel id="receiveEmailChannel"/>
 
    <int:service-activator input-channel="receiveEmailChannel" ref="mailman" method="receive"/>
 
    <bean id="mailman" class="main.Mailman">
    </bean>
</beans>

My mailman class is a simple test class just to see if i am actually picking up anything.

package main;

import javax.mail.Message;
import javax.mail.internet.MimeMessage;

public class Mailman {
	
	public void receive(MimeMessage message) {
		System.out.println("hello");
		System.out.println(message);
	}

}

Here is my main class, App.java (starter class per say)

package main;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.*;
import org.springframework.core.io.ClassPathResource;
import org.springframework.integration.*;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.core.PollableChannel;
import org.springframework.integration.support.MessageBuilder;

public class App {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		
		BeanFactory factory = new XmlBeanFactory(new ClassPathResource("application-context.xml"));
		//Mailman mailman = (Mailman)factory.getBean("mailman");
		//MessageChannel receiveEmailChannel = (MessageChannel)factory.getBean("receiveEmailChannel");
		//receiveEmailChannel.send((Message<String>)MessageBuilder.withPayload("test").build());
		while(true){
			
		}

	}

}

When i run the application, the beans get loaded from the classpathresource as expected but nothing happens thereafter. If i dont add the infinite while loop the application terminates immediately without saying/doing anything. With the while loop it does nothing and just keeps running.

When i uncomment the lines of code from the App.java file then i get the following error messages.

May 16, 2013 10:34:08 AM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [application-context.xml]
Exception in thread "main" org.springframework.integration.MessageDeliveryException: failed to send Message to channel 'receiveEmailChannel'
	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:165)
	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:128)
	at main.App.main(App.java:23)
Caused by: java.lang.IllegalStateException: Dispatcher has no subscribers.
	at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:104)
	at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:97)
	at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:44)
	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:157)
	... 2 more

Read up a bit on these error messages but i am not really clear on the exact chain so i am not quite sure what i need to do to rectify the problem or even what the real problem is for that matter.
Any advise is appreciated.
Cheers !

[Cleric]

Hi!

You should create ApplicationContext, not BeanFactory:

ApplicationContext context = new ClassPathXmlApplicationContext("application-context.xml", App.class);

Good luck,
Artem

[Lithium]

LOL!
I feared it might be something fundamental
Cheers for the assist