NullPointerException in custom LoginCommand configuration

[zajs]

Hi, I am trying to configure custom LoginCommand. I get the following error

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'springSecurityLoginCommand' defined in ServletContext resource [/WEB-INF/flex-servlet.xml]: Post-processing failed of bean type [class org.springframework.flex.samples.secured.OurSpringSecurityLoginCommand] failed; nested exception is java.lang.NullPointerException
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:803)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:493)
	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.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:322)
	... 76 more
Caused by: java.lang.NullPointerException
	at org.springframework.flex.security3.SecurityConfigurationPostProcessor.postProcessMergedBeanDefinition(SecurityConfigurationPostProcessor.java:86)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:798)
	... 83 more

Please help me resolve this issue. It appears only when i extends SpringSecurityLoginCommand.

My flex configuration file:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
	xmlns:flex="http://www.springframework.org/schema/flex"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:aop="http://www.springframework.org/schema/aop"
	xsi:schemaLocation="
	http://www.springframework.org/schema/aop
                           http://www.springframework.org/schema/aop/spring-aop.xsd
		http://www.springframework.org/schema/beans
		http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
		http://www.springframework.org/schema/context 
		http://www.springframework.org/schema/context/spring-context-3.0.xsd
		http://www.springframework.org/schema/flex 
		http://www.springframework.org/schema/flex/spring-flex-1.5.xsd
		http://www.springframework.org/schema/mvc 
		http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

 	<mvc:annotation-driven/>
 	
 	<mvc:default-servlet-handler/>
 
 	<!-- Flex-specific Configuration -->
	<flex:message-broker mapping-order="1">
		<flex:mapping pattern="/messagebroker/*"/>
		<flex:message-service
			default-channels="my-amf" />
		<flex:secured login-command="springSecurityLoginCommand" />
	</flex:message-broker>

    <bean class="org.springframework.flex.samples.secured.OurSpringSecurityLoginCommand" id="springSecurityLoginCommand">
        <constructor-arg ref="authenticationManager"/>
    </bean>
    <!--<bean class="org.springframework.flex.samples.secured.OurLoginCommand" id="ourLoginCommand">
        <constructor-arg ref="authenticationManager"/>
    </bean>-->
	
	<!-- Expose the productService bean for BlazeDS remoting -->
	<flex:remoting-destination ref="securedService" />

</beans>

And LoginCommand source code:

package org.springframework.flex.samples.secured;

import org.springframework.flex.security3.SpringSecurityLoginCommand;
import org.springframework.security.authentication.AuthenticationManager;

public class OurSpringSecurityLoginCommand extends SpringSecurityLoginCommand{
    /**
     * Creates a new SpringSecurityLoginCommand with the provided {@link org.springframework.security.authentication.AuthenticationManager}
     *
     * @param authManager the authentication manager
     */
    public OurSpringSecurityLoginCommand(AuthenticationManager authManager) {
        super(authManager);
    }
}

[guoyao]

You can copy all the code from org.springframework.flex.security3.SpringSecurityL oginCommand, then add your own logic.