p.48 실행 에러

[또또또]

sp5-chap02.zip

108.61KB

p.48 상단 실습을 진행하려고 하는데 아래와 같은 실행에러가 났습니다.

cglib로 검색을 해봐도 어떻게 해결을 해야할지 모르겠습니다ㅠㅠ

스펙은 다음과 같습니다.

javac 1.8

maven 3.8.2 (cmd에서 mvn -v명령어 결과)

8월 22, 2021 11:06:29 오전 org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@3ffc5af1: startup date [Sun Aug 22 11:06:29 KST 2021]; root of context hierarchy
Exception in thread "main" java.lang.IllegalStateException: 

Cannot load configuration class: chap02.AppContext
at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:416)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanFactory(ConfigurationClassPostProcessor.java:254)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:284)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:128)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:693)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531)
at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:88)
at chap02.Main2.main(Main2.java:9)
Caused by: java.lang.ExceptionInInitializerError
at org.springframework.context.annotation.ConfigurationClassEnhancer.newEnhancer(ConfigurationClassEnhancer.java:122)
at org.springframework.context.annotation.ConfigurationClassEnhancer.enhance(ConfigurationClassEnhancer.java:110)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:405)
... 7 more
Caused by: org.springframework.cglib.core.CodeGenerationException: java.lang.reflect.InaccessibleObjectException-->Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @782663d3
at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:464)
at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:336)
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:93)
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:91)
at org.springframework.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61)
at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34)
at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:116)
at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:291)
at org.springframework.cglib.core.KeyFactory$Generator.create(KeyFactory.java:221)
at org.springframework.cglib.core.KeyFactory.create(KeyFactory.java:174)
at org.springframework.cglib.core.KeyFactory.create(KeyFactory.java:153)
at org.springframework.cglib.proxy.Enhancer.<clinit>(Enhancer.java:73)
... 10 more
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make protected final java.lang.Class java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain) throws java.lang.ClassFormatError accessible: module java.base does not "opens java.lang" to unnamed module @782663d3
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357)
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199)
at java.base/java.lang.reflect.Method.setAccessible(Method.java:193)
at org.springframework.cglib.core.ReflectUtils$1.run(ReflectUtils.java:61)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:554)
at org.springframework.cglib.core.ReflectUtils.<clinit>(ReflectUtils.java:52)
at org.springframework.cglib.core.KeyFactory$Generator.generateClass(KeyFactory.java:243)
at org.springframework.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)
at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:329)
... 22 more

[madvirus]

답변이 늦었습니다. 자바 버전을 8로 맞추시면 됩니다. 해당 스프링 버전이 자바 9나 그 이후 버전을 지원하지 않아서 발생한 에러입니다.