Start up failure when creating an Aspect targeted at ServerHttpSecurity with devtools on the classpath.

[Janani-Subbiah]

I am creating an aspect that adds additional behavior to SecurityHttpSecurity beans before the execution of the authorize() method in SecurityHttpSecurity. When devtools is on the class path, the app crashes with the following error (Everything works as expected if I remove devtools from dependencies section in my build.gradle file and the aspect advice is executed):

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'httpHandler' defined in class path resource [org/springframework/boot/autoconfigure/web/reactive/HttpHandlerAutoConfiguration$AnnotationConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.http.server.reactive.HttpHandler]: Factory method 'httpHandler' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.security.config.annotation.web.reactive.WebFluxSecurityConfiguration': Unsatisfied dependency expressed through method 'setSecurityWebFilterChains' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'springSecurityFilterChain' defined in class path resource [org/springframework/boot/actuate/autoconfigure/security/reactive/ReactiveManagementWebSecurityAutoConfiguration.class]: Unsatisfied dependency expressed through method 'springSecurityFilterChain' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.config.annotation.web.reactive.HttpSecurityConfiguration.httpSecurity' defined in class path resource [org/springframework/security/config/annotation/web/reactive/ServerHttpSecurityConfiguration.class]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity: 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-->class org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 cannot access its superclass org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity (org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 is in unnamed module of loader org.springframework.boot.devtools.restart.classloader.RestartClassLoader @eb70cd3; org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity is in unnamed module of loader 'app')
        at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:645) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:475) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) ~[spring-context-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.refresh(ReactiveWebServerApplicationContext.java:66) ~[spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) ~[spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) ~[spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]
        at com.example.demo.DemoApplicationKt.main(DemoApplication.kt:12) ~[main/:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[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:567) ~[na:na]
        at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.2.1.RELEASE.jar:2.2.1.RELEASE]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.http.server.reactive.HttpHandler]: Factory method 'httpHandler' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.security.config.annotation.web.reactive.WebFluxSecurityConfiguration': Unsatisfied dependency expressed through method 'setSecurityWebFilterChains' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'springSecurityFilterChain' defined in class path resource [org/springframework/boot/actuate/autoconfigure/security/reactive/ReactiveManagementWebSecurityAutoConfiguration.class]: Unsatisfied dependency expressed through method 'springSecurityFilterChain' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.config.annotation.web.reactive.HttpSecurityConfiguration.httpSecurity' defined in class path resource [org/springframework/security/config/annotation/web/reactive/ServerHttpSecurityConfiguration.class]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity: 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-->class org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 cannot access its superclass org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity (org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 is in unnamed module of loader org.springframework.boot.devtools.restart.classloader.RestartClassLoader @eb70cd3; org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity is in unnamed module of loader 'app')
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:640) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        ... 24 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.security.config.annotation.web.reactive.WebFluxSecurityConfiguration': Unsatisfied dependency expressed through method 'setSecurityWebFilterChains' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'springSecurityFilterChain' defined in class path resource [org/springframework/boot/actuate/autoconfigure/security/reactive/ReactiveManagementWebSecurityAutoConfiguration.class]: Unsatisfied dependency expressed through method 'springSecurityFilterChain' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.config.annotation.web.reactive.HttpSecurityConfiguration.httpSecurity' defined in class path resource [org/springframework/security/config/annotation/web/reactive/ServerHttpSecurityConfiguration.class]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity: 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-->class org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 cannot access its superclass org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity (org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 is in unnamed module of loader org.springframework.boot.devtools.restart.classloader.RestartClassLoader @eb70cd3; org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity is in unnamed module of loader 'app')
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:719) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:116) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:397) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1429) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:400) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory$1.orderedStream(DefaultListableBeanFactory.java:403) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.web.server.adapter.WebHttpHandlerBuilder.applicationContext(WebHttpHandlerBuilder.java:161) ~[spring-web-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.boot.autoconfigure.web.reactive.HttpHandlerAutoConfiguration$AnnotationConfig.httpHandler(HttpHandlerAutoConfiguration.java:59) ~[spring-boot-autoconfigure-2.2.1.RELEASE.jar:2.2.1.RELEASE]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[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:567) ~[na:na]
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        ... 25 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'springSecurityFilterChain' defined in class path resource [org/springframework/boot/actuate/autoconfigure/security/reactive/ReactiveManagementWebSecurityAutoConfiguration.class]: Unsatisfied dependency expressed through method 'springSecurityFilterChain' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.config.annotation.web.reactive.HttpSecurityConfiguration.httpSecurity' defined in class path resource [org/springframework/security/config/annotation/web/reactive/ServerHttpSecurityConfiguration.class]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity: Common causes of this problem include using a final class or a non-visible class; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.IllegalAccessError-->class org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 cannot access its superclass org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity (org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 is in unnamed module of loader org.springframework.boot.devtools.restart.classloader.RestartClassLoader @eb70cd3; org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity is in unnamed module of loader 'app')
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:787) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:528) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1503) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1467) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveMultipleBeans(DefaultListableBeanFactory.java:1358) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1245) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:711) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        ... 51 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.config.annotation.web.reactive.HttpSecurityConfiguration.httpSecurity' defined in class path resource [org/springframework/security/config/annotation/web/reactive/ServerHttpSecurityConfiguration.class]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity: Common causes of this problem include using a final class or a non-visible class; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.IllegalAccessError-->class org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 cannot access its superclass org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity (org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 is in unnamed module of loader org.springframework.boot.devtools.restart.classloader.RestartClassLoader @eb70cd3; org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity is in unnamed module of loader 'app')
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:603) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:341) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1287) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:874) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:778) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        ... 67 common frames omitted
Caused by: org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity: 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-->class org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 cannot access its superclass org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity (org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 is in unnamed module of loader org.springframework.boot.devtools.restart.classloader.RestartClassLoader @eb70cd3; org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity is in unnamed module of loader 'app')
        at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:208) ~[spring-aop-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:110) ~[spring-aop-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:471) ~[spring-aop-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:350) ~[spring-aop-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:299) ~[spring-aop-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:431) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1807) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595) ~[spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        ... 75 common frames omitted
Caused by: org.springframework.cglib.core.CodeGenerationException: java.lang.IllegalAccessError-->class org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 cannot access its superclass org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity (org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 is in unnamed module of loader org.springframework.boot.devtools.restart.classloader.RestartClassLoader @eb70cd3; org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity is in unnamed module of loader 'app')
        at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:530) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:363) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.cglib.proxy.Enhancer.generate(Enhancer.java:582) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:110) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:108) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
        at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:134) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:319) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:569) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:416) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.aop.framework.ObjenesisCglibAopProxy.createProxyClassAndInstance(ObjenesisCglibAopProxy.java:57) ~[spring-aop-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:205) ~[spring-aop-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        ... 82 common frames omitted
Caused by: java.lang.IllegalAccessError: class org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 cannot access its superclass org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity (org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity$$EnhancerBySpringCGLIB$$138972d9 is in unnamed module of loader org.springframework.boot.devtools.restart.classloader.RestartClassLoader @eb70cd3; org.springframework.security.config.annotation.web.reactive.ServerHttpSecurityConfiguration$ContextAwareServerHttpSecurity is in unnamed module of loader 'app')
        at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[na:na]
        at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016) ~[na:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[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:567) ~[na:na]
        at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:527) ~[spring-core-5.2.1.RELEASE.jar:5.2.1.RELEASE]
        ... 96 common frames omitted

Versions:
Spring boot: 2.2.1.RELEASE
Spring dependency management: 1.0.8.RELEASE
Kotlin: 1.3.50
Java: 12
Gradle: 5.6.4

Sample repo to reproduce the issue: https://github.com/Janani-Subbiah/demo

I am looking for a way to be able to add some advice to all ServerHttpSecurity beans, created anywhere in the app, when the authorize() method is called.

My apologies if this has been addressed in the docs already or if this needs to posted some place else. Additionally, if this approach is incorrect, I would appreciate suggestions/recommendations on how I could achieve what I am trying to do! Thanks!

[wilkinsona]

Thanks for the sample. The problem is caused by DevTools' split class loader and your aspect. It applies to ContextAwareServerHttpSecurity so a CGLib-based proxy is created. This proxy is a sub-class of ContextAwareServerHttpSecurity and it's loaded using DevTools' restart class loader. ContextAwareServerHttpSecurity is loaded by the app class loader and is package-private. Package-private access is restricted to the same package and the same class loader. The CGLib-generated sub-class was loaded by a different class loader so it cannot see its super-class. The IllegalAccessError is the result.

The situation can be changed (but not really improved) by pulling spring-security-config up into the restart class loader using a META-INF/spring-devtools.properties file:

restart.include.springsecurity=/spring-security-config-[\\w\\d-\.]+\.jar

This then causes a failure as the ServerHttpSecurity bean cannot be found:

***************************
APPLICATION FAILED TO START
***************************

Description:

Parameter 0 of method springSecurityFilterChain in org.springframework.boot.actuate.autoconfigure.security.reactive.ReactiveManagementWebSecurityAutoConfiguration required a bean of type 'org.springframework.security.config.web.server.ServerHttpSecurity' that could not be found.


Action:

Consider defining a bean of type 'org.springframework.security.config.web.server.ServerHttpSecurity' in your configuration.

This is also caused by DevTools' split class loader as the code looking for the ServerHttpSecurity instance was loaded by the app class loader while the instance was loaded by DevTools' restart class loader.

[wilkinsona]

We wondered if pulling everything up into the restart class loader would work, albeit possibly at the expense of slightly slower restarts. It doesn't. It does allow the application to start, but it no longer restarts when changes are made.