Exception when applying interceptor to DelegatingActionProxy

[MmarcoM]

hello all,
i am integrating Struts with Spring via DelegatingActionProxy bean defined in applicationContext.xml

I wanted to apply a tracing advisor to a specific DelegatingActionProxy, so i defind a BeanNameAutoProxyCreator with beanName of /logon (one of my delegatingActionProxy)
and i applied a TracingAdvisor to it

Below is excerpt of my applicationContext.xml


<bean id="jdkBeanNameProxyCreator"
class="org.springframework.aop.framework.autoproxy.BeanNa meAutoProxyCreator">
<property name="beanNames">
<value>/logon</value>
</property>
<property name="interceptorNames">
<value>tracingAdvisor</value>
</property>
</bean>

<bean id="tracingInterceptor" class="com.myapp.aop.TracingInterceptor"/>

<bean id="tracingAdvisor"
class="org.springframework.aop.support.RegexpMethodPointc utAdvisor">
<property name="advice">
<ref local="tracingInterceptor"/>
</property>
<property name="pattern">
<value>.*</value>
</property>
</bean>

<bean name="/logon" class="com.myapp.action.LoginAction"
singleton="false">
<property name="persistenceManager">
<ref bean="persistenceManager"/>
</property>
</bean>

when the interceptor is applied, i got following exception

org.springframework.beans.factory.BeanCreationExce ption: Error creating bean wit
h name '/logon' defined in resource [/WEB-INF/applicationContext.xml] of Servlet
Context: Initialization of bean failed; nested exception is org.aopalliance.aop.
AspectException: null
java.lang.IllegalStateException: Unknown callback class org.springframework.aop.
framework.Cglib2AopProxy$DynamicAdvisedInterceptor
at net.sf.cglib.proxy.CallbackUtils.getGenerator(Call backUtils.java:99)
at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer. java:298)
at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:2 46)
at org.springframework.aop.framework.Cglib2AopProxy.g etProxy(Cglib2AopPr
oxy.java:171)
at org.springframework.aop.framework.Cglib2AopProxy.g etProxy(Cglib2AopPr
oxy.java:136)
at org.springframework.aop.framework.ProxyFactory.get Proxy(ProxyFactory.
java:66)
at org.springframework.aop.framework.autoproxy.Abstra ctAutoProxyCreator.
postProcessAfterInitialization(AbstractAutoProxyCr eator.java:260)
at org.springframework.beans.factory.support.Abstract AutowireCapableBean
Factory.applyBeanPostProcessorsAfterInitialization (AbstractAutowireCapableBeanFa
ctory.java:187)
at org.springframework.beans.factory.support.Abstract AutowireCapableBean
Factory.createBean(AbstractAutowireCapableBeanFact ory.java:289)
at org.springframework.beans.factory.support.Abstract AutowireCapableBean
Factory.createBean(AbstractAutowireCapableBeanFact ory.java:208)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean
(AbstractBeanFactory.java:217)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean
(AbstractBeanFactory.java:136)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean
(AbstractBeanFactory.java:223)
at org.springframework.context.support.AbstractApplic ationContext.getBea
n(AbstractApplicationContext.java:435)
at org.springframework.web.struts.DelegatingActionPro xy.getDelegateActio
n(DelegatingActionProxy.java:120)
at org.springframework.web.struts.DelegatingActionPro xy.execute(Delegati
ngActionProxy.java:103)
at org.apache.struts.action.RequestProcessor.processA ctionPerform(Reques
tProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process( RequestProcessor.ja
va:274)
at org.apache.struts.action.ActionServlet.process(Act ionServlet.java:148
2)
at org.apache.struts.action.ActionServlet.doPost(Acti onServlet.java:525)

at javax.servlet.http.HttpServlet.service(HttpServlet .java:717)



My guess is that the exception is happening because i already have a Proxy (delegatingActionProxy) and i am trying to get a proxy of a proxy..

But if that is the case, how can i declare advisors on DelegatingActionProxy classes?

thanx and regards
marco

[dudekta]

I've seen this question posted, but where is the solution?