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EventListener in DelegatingEventExternalizer could not be created - Similar To Issue 973 #1170

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@ashwinibuche

Description

@ashwinibuche

When using Spring Modulith 1.3.3 (starter + events-core + NATS Event) with Spring Boot 3.4.3, the auto-configured DelegatingEventExternalizer instance 'natsEventExternalizer' , continuously receiving EventListenerMethodProcessor can not find the @ApplicationModuleListener annotated method on, resulting in the following stacktrace:

org.springframework.beans.factory.BeanInitializationException: Failed to process @EventListener annotation on bean with name 'natsEventExternalizer': Need to invoke method 'externalize' declared on target class 'DelegatingEventExternalizer', but not found in any interface(s) of the exposed proxy type. Either pull the method up to an interface or switch to CGLIB proxies by enforcing proxy-target-class mode in your configuration.
	at org.springframework.context.event.EventListenerMethodProcessor.afterSingletonsInstantiated(EventListenerMethodProcessor.java:149) ~[spring-context-6.2.3.jar:6.2.3]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:1083) ~[spring-beans-6.2.3.jar:6.2.3]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:987) ~[spring-context-6.2.3.jar:6.2.3]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:627) ~[spring-context-6.2.3.jar:6.2.3]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.4.3.jar:3.4.3]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) ~[spring-boot-3.4.3.jar:3.4.3]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:439) ~[spring-boot-3.4.3.jar:3.4.3]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:318) ~[spring-boot-3.4.3.jar:3.4.3]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1361) ~[spring-boot-3.4.3.jar:3.4.3]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1350) ~[spring-boot-3.4.3.jar:3.4.3]
	at org.rockwell.publishermodulith.main(publishermodulith.java:14) ~[classes/:na]
Caused by: java.lang.IllegalStateException: Need to invoke method 'externalize' declared on target class 'DelegatingEventExternalizer', but not found in any interface(s) of the exposed proxy type. Either pull the method up to an interface or switch to CGLIB proxies by enforcing proxy-target-class mode in your configuration.
	at org.springframework.core.MethodIntrospector.selectInvocableMethod(MethodIntrospector.java:135) ~[spring-core-6.2.3.jar:6.2.3]
	at org.springframework.aop.support.AopUtils.selectInvocableMethod(AopUtils.java:150) ~[spring-aop-6.2.3.jar:6.2.3]
	at org.springframework.context.event.EventListenerMethodProcessor.processBean(EventListenerMethodProcessor.java:189) ~[spring-context-6.2.3.jar:6.2.3]
	at org.springframework.context.event.EventListenerMethodProcessor.afterSingletonsInstantiated(EventListenerMethodProcessor.java:145) ~[spring-context-6.2.3.jar:6.2.3]
	... 10 common frames omitted

Process finished with exit code 1

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