JBoss and ContextSingletonBeanFactoryLocator

[Patrick Bourke]

Hi All,

I'm trying to get an SLSB running in JBoss with a bean factory retrieved via the ContextSingletonBeanFactoryLocator. The Spring classes aren't able to locate the beanRefFactory.xml file. My EAR layout is as follows:

app.ear
  |-app-lib.jar (contains refBeanFactory.xml)
  |-spring.jar
  |-app-ejb.jar (contains AppBean)
  |-app.war
  |-... remaining util jars

The manifest file of app-ejb.jar has app-lib.jar in it's Class-Path. AppBean is as follows:

public class AppBean extends AbstractStatelessSessionBean implements
        MailboxManager {

    private MailboxManager mailboxManager;
    
    protected void onEjbCreate() throws CreateException {
        mailboxManager = (MailboxManager) getBeanFactory().getBean("mailboxManager");
    }

    public void deliverMessage(MessageEnvelope envelope)
            throws MailboxException, MailboxAuthorizationException {
        mailboxManager.deliverMessage(envelope);
    }
    
    public void setSessionContext(SessionContext sessionContext) {
        super.setSessionContext(sessionContext);                setBeanFactoryLocator(ContextSingletonBeanFactoryLocator.getInstance());
        setBeanFactoryLocatorKey(ServicesConstants.PRIMARY_CONTEXT_ID);
    }
}

beanRefFactory.xml is:

<beans>
	<bean id="com.app" lazy-init="true"
		class="org.springframework.context.support.ClassPathXmlApplicationContext">
		<constructor-arg>
			<value>com/app/server/mailbox/applicationContext.xml</value>
		</constructor-arg>
	</bean>
</beans>

When I hit the web and trigger a message to the SLSB through the SimpleRemoteStatelessSessionProxyFactory, the ContextSingletonBeanFactoryLocator fires up with the default bean factory search path:

2005-01-27 17:36:31,516 DEBUG [org.springframework.beans.factory.access.SingletonBeanFactoryLocator] ContextSingletonBeanFactoryLocator.getInstance(): instances.hashCode=0, instances={}
2005-01-27 17:36:31,516 DEBUG [org.springframework.beans.factory.access.SingletonBeanFactoryLocator] Factory group with resource name [classpath*:beanRefContext.xml] requested. Creating new instance.

but a few lines down, I get this error:

2005-01-27 17:36:31,526 ERROR [org.jboss.ejb.plugins.LogInterceptor] EJBException in method: public abstract void com.app.ejb.MailboxManagerRemote.deliverMessage(com.app.MessageEnvelope) throws com.app.server.mailbox.MailboxException,com.app.server.mailbox.MailboxAuthorizationException,java.rmi.RemoteException, causedBy:

org.springframework.beans.FatalBeanException: Unable to return specified BeanFactory instance: factory key [com.app], from group with resource name [classpath*:beanRefContext.xml]; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'com.app' is defined: org.springframework.beans.factory.support.DefaultListableBeanFactory defining beans []; root of BeanFactory hierarchy

I've tried to load the resource (using getClassLoader().getResource() ) outside of Spring and found that the classloader for a class such as MailboxException (which is in app-lib.jar) will find beanRefContext.xml whereas AppBean's classloader (AppBean is in app-ejb.jar) will not. Has anyone encountered this problem before?

[Patrick Bourke]

Found the problem:

ContextSingletonBeanFactoryLocator looks for beanRefContext.xml

We now return to your regularly scheduled programming.