MethodSecurityInterceptor not finding Authentication Credentials

[james.182]

I'm having trouble implementing the default Method Security Interceptor into my Spring Security Servlet. I keep getting a AuthenticationCredentialsNotFoundException when I fire up my servlet. Could anyone shed light on this issue and explain why this could be occurring?

Console output

[11/29/11 15:43:14:588 CST] 00000016 SystemOut     O [ERROR,ContextLoader] Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'bankDao' defined in class path resource [applicationContext-business.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'msi' defined in ServletContext resource [/WEB-INF/security-app-context.xml]: Invocation of init method failed; nested exception is org.springframework.security.authentication.AuthenticationCredentialsNotFoundException: An Authentication object was not found in the SecurityContext
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:574)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
	at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)
	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)
	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
...

Here is part of my security-app-context.xml

	<!-- Create MethodSecurityInterceptor -->
	 <beans:bean id="msi"
		class="org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor">
		<beans:property name="validateConfigAttributes" value="false" />
		<beans:property name="authenticationManager" ref="authenticationManager" />
		<beans:property name="accessDecisionManager" ref="universalAccessDecisionManager" /> 
		<beans:property name="securityMetadataSource" ref="MethodSecurityMetaData" />
	</beans:bean>
	
	<beans:bean id="MethodSecurityMetaData"
		class="bigbank.security.MyMethodSecurityMetaDataSource">
		<beans:property name="serviceId" value="user-portal" />
	</beans:bean>
	<beans:bean id="methodSecurityMetadataSourceAdvisor"
		class="org.springframework.security.access.intercept.aopalliance.MethodSecurityMetadataSourceAdvisor">
		<beans:constructor-arg value="msi" />
		<beans:constructor-arg ref="MethodSecurityMetaData" />
		<beans:constructor-arg value="test" />
	</beans:bean>

Finally, here is the MetaDataSource file

package bigbank.security;

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.access.SecurityConfig;
import org.springframework.security.access.method.MethodSecurityMetadataSource;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.FilterInvocation;

public class MyMethodSecurityMetaDataSource implements
		MethodSecurityMetadataSource {
	
        // service ID for credentials manager
	private String serviceId;

	public void setServiceId(String id) {
		serviceId = id;
	}

	public String getServiceId() {
		return serviceId;
	}

	@Override
	public Collection<ConfigAttribute> getAllConfigAttributes() {
		// create dummy variable
		Collection<ConfigAttribute> attributes = new ArrayList<ConfigAttribute>();
		attributes.add(new SecurityConfig("Call Method Access Decision Manager"));
		return null;
	}

	@Override
	public Collection<ConfigAttribute> getAttributes(Object arg0)
			throws IllegalArgumentException {
		Collection<ConfigAttribute> attributes = new ArrayList<ConfigAttribute>();

                // create dummy variable
		attributes.add(new SecurityConfig("Call Method Access Decision Manager"));
		return attributes;
	}

	@Override
	public boolean supports(Class<?> arg0) {
		return true;
	}

	@Override
	public Collection<ConfigAttribute> getAttributes(Method arg0, Class<?> arg1) {
		Collection<ConfigAttribute> attributes = new ArrayList<ConfigAttribute>();

                // create dummy attribute
		attributes.add(new SecurityConfig("Call Method Access Decision Manager"));
		return attributes;
	}
}

Thanks in advance,
Jim