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Kafka Streams binder: IllegalAccessException in non-public classes with StreamListener method

See original GitHub issue

org.springframework.beans.factory.BeanInitializationException: Cannot setup StreamListener for public void wc.WordsConsumer.process(org.apache.kafka.streams.kstream.KStream); nested exception is java.lang.IllegalAccessException: Class org.springframework.cloud.stream.binder.kafka.streams.KafkaStreamsStreamListenerSetupMethodOrchestrator can not access a member of class wc.WordsConsumer with modifiers "public"
	at org.springframework.cloud.stream.binder.kafka.streams.KafkaStreamsStreamListenerSetupMethodOrchestrator.orchestrateStreamListenerSetupMethod(KafkaStreamsStreamListenerSetupMethodOrchestrator.java:195) ~[spring-cloud-stream-binder-kafka-streams-2.0.0.RC3.jar:2.0.0.RC3]
	at org.springframework.cloud.stream.binding.StreamListenerAnnotationBeanPostProcessor.doPostProcess(StreamListenerAnnotationBeanPostProcessor.java:195) ~[spring-cloud-stream-2.0.0.RC3.jar:2.0.0.RC3]
	at org.springframework.cloud.stream.binding.StreamListenerAnnotationBeanPostProcessor.lambda$postProcessAfterInitialization$0(StreamListenerAnnotationBeanPostProcessor.java:167) ~[spring-cloud-stream-2.0.0.RC3.jar:2.0.0.RC3]
	at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_151]
	at org.springframework.cloud.stream.binding.StreamListenerAnnotationBeanPostProcessor.injectAndPostProcessDependencies(StreamListenerAnnotationBeanPostProcessor.java:285) ~[spring-cloud-stream-2.0.0.RC3.jar:2.0.0.RC3]
	at org.springframework.cloud.stream.binding.StreamListenerAnnotationBeanPostProcessor.afterSingletonsInstantiated(StreamListenerAnnotationBeanPostProcessor.java:105) ~[spring-cloud-stream-2.0.0.RC3.jar:2.0.0.RC3]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:777) ~[spring-beans-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.0.4.RELEASE.jar:5.0.4.RELEASE]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) [spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:388) [spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246) [spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1234) [spring-boot-2.0.0.RELEASE.jar:2.0.0.RELEASE]
	at wc.WordCountApplication.main(WordCountApplication.java:51) [classes/:na]
Caused by: java.lang.IllegalAccessException: Class org.springframework.cloud.stream.binder.kafka.streams.KafkaStreamsStreamListenerSetupMethodOrchestrator can not access a member of class wc.WordsConsumer with modifiers "public"
	at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:102) ~[na:1.8.0_151]
	at java.lang.reflect.AccessibleObject.slowCheckMemberAccess(AccessibleObject.java:296) ~[na:1.8.0_151]
	at java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:288) ~[na:1.8.0_151]
	at java.lang.reflect.Method.invoke(Method.java:491) ~[na:1.8.0_151]
	at org.springframework.cloud.stream.binder.kafka.streams.KafkaStreamsStreamListenerSetupMethodOrchestrator.orchestrateStreamListenerSetupMethod(KafkaStreamsStreamListenerSetupMethodOrchestrator.java:159) ~[spring-cloud-stream-binder-kafka-streams-2.0.0.RC3.jar:2.0.0.RC3]
	... 15 common frames omitted

Issue Analytics

State:
Created 5 years ago
Comments:10 (8 by maintainers)

Top GitHub Comments

1reaction

garyrussellcommented, Mar 29, 2018

Still bogus IMHO.

1reaction

artembilancommented, Mar 29, 2018

You need to use ReflectionUtils.makeAccessible(method) before method.invoke().

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