我目前正在尝试使用Spring Boot, Axon Framework和java模块(使用JDK 17)。
我创建了一个repo来说明这个问题:这里
问题是应用程序没有启动，我得到的异常如下:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'accountViewProjection' defined in file [C:workspaceaxon_issue_replication_reposaxon-module-erroraxon-example-appbuildclassesjavamainiogithubvab2048axonexample_bugappqueryaccountAccountViewProjection.class]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class io.github.vab2048.axon.example_bug.app.query.account.AccountViewProjection: Common causes of this problem include using a final class or a non-visible class; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.IllegalAccessError-->superinterface check failed: class io.github.vab2048.axon.example_bug.app.query.account.AccountViewProjection$$EnhancerBySpringCGLIB$$159eee6a (in module io.github.vab2048.axon.example_bug.app) cannot access class org.springframework.aop.framework.Advised (in unnamed module @0x732d0d24) because module io.github.vab2048.axon.example_bug.app does not read unnamed module @0x732d0d24
at spring.beans@5.3.20/org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:628) ~[spring-beans-5.3.20.jar:na]
at spring.beans@5.3.20/org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.20.jar:na]
at spring.beans@5.3.20/org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.20.jar:na]
at spring.beans@5.3.20/org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.20.jar:na]
at spring.beans@5.3.20/org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.20.jar:na]
at spring.beans@5.3.20/org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.20.jar:na]
at spring.beans@5.3.20/org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:953) ~[spring-beans-5.3.20.jar:na]
at spring.context@5.3.20/org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) ~[spring-context-5.3.20.jar:na]
at spring.context@5.3.20/org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.20.jar:na]
at spring.boot@2.7.0/org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.0.jar:na]
at spring.boot@2.7.0/org.springframework.boot.SpringApplication.refresh(SpringApplication.java:734) ~[spring-boot-2.7.0.jar:na]
at spring.boot@2.7.0/org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.0.jar:na]
at spring.boot@2.7.0/org.springframework.boot.SpringApplication.run(SpringApplication.java:308) ~[spring-boot-2.7.0.jar:na]
at spring.boot@2.7.0/org.springframework.boot.SpringApplication.run(SpringApplication.java:1306) ~[spring-boot-2.7.0.jar:na]
at spring.boot@2.7.0/org.springframework.boot.SpringApplication.run(SpringApplication.java:1295) ~[spring-boot-2.7.0.jar:na]
at io.github.vab2048.axon.example_bug.app/io.github.vab2048.axon.example_bug.app.AxonApplication.main(AxonApplication.java:10) ~[main/:na]
Caused by: org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class io.github.vab2048.axon.example_bug.app.query.account.AccountViewProjection: Common causes of this problem include using a final class or a non-visible class; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.IllegalAccessError-->superinterface check failed: class io.github.vab2048.axon.example_bug.app.query.account.AccountViewProjection$$EnhancerBySpringCGLIB$$159eee6a (in module io.github.vab2048.axon.example_bug.app) cannot access class org.springframework.aop.framework.Advised (in unnamed module @0x732d0d24) because module io.github.vab2048.axon.example_bug.app does not read unnamed module @0x732d0d24
at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:209) ~[spring-aop-5.3.20.jar:5.3.20]
at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:110) ~[spring-aop-5.3.20.jar:5.3.20]
at org.axonframework.spring@4.5.9/org.axonframework.spring.config.AbstractAnnotationHandlerBeanPostProcessor.createAdapterProxy(AbstractAnnotationHandlerBeanPostProcessor.java:190) ~[axon-spring-4.5.9.jar:na]
at org.axonframework.spring@4.5.9/org.axonframework.spring.config.AbstractAnnotationHandlerBeanPostProcessor.postProcessAfterInitialization(AbstractAnnotationHandlerBeanPostProcessor.java:89) ~[axon-spring-4.5.9.jar:na]
at spring.beans@5.3.20/org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:455) ~[spring-beans-5.3.20.jar:na]
at spring.beans@5.3.20/org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1808) ~[spring-beans-5.3.20.jar:na]
at spring.beans@5.3.20/org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.20.jar:na]
... 15 common frames omitted
Caused by: org.springframework.cglib.core.CodeGenerationException: java.lang.IllegalAccessError-->superinterface check failed: class io.github.vab2048.axon.example_bug.app.query.account.AccountViewProjection$$EnhancerBySpringCGLIB$$159eee6a (in module io.github.vab2048.axon.example_bug.app) cannot access class org.springframework.aop.framework.Advised (in unnamed module @0x732d0d24) because module io.github.vab2048.axon.example_bug.app does not read unnamed module @0x732d0d24
at spring.core@5.3.20/org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:512) ~[spring-core-5.3.20.jar:na]
at spring.core@5.3.20/org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:363) ~[spring-core-5.3.20.jar:na]
at spring.core@5.3.20/org.springframework.cglib.proxy.Enhancer.generate(Enhancer.java:585) ~[spring-core-5.3.20.jar:na]
at spring.core@5.3.20/org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:110) ~[spring-core-5.3.20.jar:na]
at spring.core@5.3.20/org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:108) ~[spring-core-5.3.20.jar:na]
at spring.core@5.3.20/org.springframework.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54) ~[spring-core-5.3.20.jar:na]
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
at spring.core@5.3.20/org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61) ~[spring-core-5.3.20.jar:na]
at spring.core@5.3.20/org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) ~[spring-core-5.3.20.jar:na]
at spring.core@5.3.20/org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:134) ~[spring-core-5.3.20.jar:na]
at spring.core@5.3.20/org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:319) ~[spring-core-5.3.20.jar:na]
at spring.core@5.3.20/org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:572) ~[spring-core-5.3.20.jar:na]
at spring.core@5.3.20/org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:419) ~[spring-core-5.3.20.jar:na]
at org.springframework.aop.framework.ObjenesisCglibAopProxy.createProxyClassAndInstance(ObjenesisCglibAopProxy.java:57) ~[spring-aop-5.3.20.jar:5.3.20]
at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:206) ~[spring-aop-5.3.20.jar:5.3.20]
... 21 common frames omitted
Caused by: java.lang.IllegalAccessError: superinterface check failed: class io.github.vab2048.axon.example_bug.app.query.account.AccountViewProjection$$EnhancerBySpringCGLIB$$159eee6a (in module io.github.vab2048.axon.example_bug.app) cannot access class org.springframework.aop.framework.Advised (in unnamed module @0x732d0d24) because module io.github.vab2048.axon.example_bug.app does not read unnamed module @0x732d0d24
at java.base/java.lang.ClassLoader.defineClass0(Native Method) ~[na:na]
at java.base/java.lang.System$2.defineClass(System.java:2307) ~[na:na]
at java.base/java.lang.invoke.MethodHandles$Lookup$ClassDefiner.defineClass(MethodHandles.java:2439) ~[na:na]
at java.base/java.lang.invoke.MethodHandles$Lookup$ClassDefiner.defineClass(MethodHandles.java:2416) ~[na:na]
at java.base/java.lang.invoke.MethodHandles$Lookup.defineClass(MethodHandles.java:1843) ~[na:na]
at java.base/jdk.internal.reflect.GeneratedMethodAccessor33.invoke(Unknown Source) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
at spring.core@5.3.20/org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:507) ~[spring-core-5.3.20.jar:na]
... 35 common frames omitted
问题代码似乎在io.github.vab2048.axon.example_bug.app.query.account.AccountViewProjection:
@QueryHandler
public AccountView getAccount(GetAccountView query) {
log.debug("Handling: {}", query);
return repository.findById(query.id()).orElseThrow();
}
是Axon注释@QueryHandler引起的(您可以通过注释它来验证这一点，然后一切都工作)。这很奇怪，因为其他Axon注释都不会引起这个问题。包本身在module-info.java文件中被导出和打开。
我做错了什么?我知道可能会添加命令行参数来解决这个问题，但我不确定到底该使用什么(理想情况下，我根本不应该给出任何命令行参数)。
我有点怀疑是否把这篇文章作为一个答案，但无论如何我都会这样做。
你试过从混合中移除Spring AOP吗?似乎Spring AOP正在制作一些内部类来引起IllegalAccessError，而不是Axon框架。
如果这解决了这个问题，我打赌Spring AOP可以做一些事情来使它工作。遗憾的是，这不是我的强项，所以我必须研究一下什么样的设置(如果有的话)会在这方面有所帮助。