AOP configuration seems to be invalid

[Zhixiong Pan]

Hi all,

I am a new learner on Spring 1.2 AOP.
The configure file beans-config.xml is like:

  <bean id="logBeforeAdvice"
		class="com.denny_blue.springdemo.aop.LogBeforeAdvice" />

	<bean id="helloSpeaker"
		class="com.denny_blue.springdemo.aop.HelloSpeaker" />

	<bean id="helloProxy"
		class="org.springframework.aop.framework.ProxyFactoryBean">
		<property name="proxyInterfaces"
			value="com.denny_blue.springdemo.aop.IHello">
		</property>
		<property name="target" ref="helloSpeaker"></property>
		<property name="interceptorNames">
			<list>
				<value>logBeforeAdvice</value>
			</list>
		</property>
	</bean>  

In a test application class I have below code:

  ApplicationContext context = new ClassPathXmlApplicationContext(
				"beans-config.xml");

		IHello helloProxy = (IHello) context.getBean("helloProxy");
		helloProxy.hello("world");  

The before advice method can be called, but after that the advice method didn't get called. The error log is like:

Exception in thread "main" org.springframework.aop.AopInvocationException: AOP configuration seems to be invalid: tried calling method [public abstract void com.denny_blue.springdemo.aop.IHello.hello(java.lang.String)] on target [com.denny_blue.springdemo.aop.HelloSpeaker@18dfef8]; nested exception is java.lang.IllegalArgumentException: object is not an instance of declaring class

If you have an idea, please advice. Thanks.

[Mark Spritzler]

Does your HelloSpeaker class implement the IHello interface

Please post the HelloSpeaker class code here.

Thanks

Mark

[Zhixiong Pan]

Thanks Mark,

The cause is that the HelloSpeaker implemented another IHello interface from an incorrect package.