CODEWITHSUNDEEP
javaspringspring-aopcglibjep-396
Vishal Agrahari
Vishal Agrahari

Reputation: 41

InaccessibleObjectException when trying to create CGLIB Spring proxy

Feb 02, 2022 12:58:03 PM org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@71318ec4: startup date [Wed Feb 02 12:58:03 IST 2022]; root of context hierarchy
Feb 02, 2022 12:58:03 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [spring.xml]
Feb 02, 2022 12:58:04 PM org.springframework.context.support.AbstractApplicationContext refresh
WARNING: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'triangle' defined in class path resource [spring.xml]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Unexpected AOP exception; nested exception is java.lang.ExceptionInInitializerError
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'triangle' defined in class path resource [spring.xml]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Unexpected AOP exception; nested exception is java.lang.ExceptionInInitializerError
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:591)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:758)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:144)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:85)
    at com.vishal.main.DrawingMain.main(DrawingMain.java:10)
Caused by: org.springframework.aop.framework.AopConfigException: Unexpected AOP exception; nested exception is java.lang.ExceptionInInitializerError
    at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:215)
    at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:110)
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:473)
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:355)
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:304)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:438)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1714)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:583)
    ... 11 more
Caused by: java.lang.ExceptionInInitializerError
    at org.springframework.aop.framework.CglibAopProxy.createEnhancer(CglibAopProxy.java:232)
    at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:181)
    ... 18 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 @8519cb4
    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)
    ... 20 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 @8519cb4
    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)
    ... 32 more

Upvotes: 4

Views: 13960

Answers (2)

Shay
Shay

Reputation: 21

I was able to fix this today (with JDK 17) by upgrading to SpringBoot 2.6.4 (specifically, you need spring framework 5.3.16, so if you're using spring dependency management plugin, you only need to set the springboot version to 2.6.4).

Seems like something was fixed in spring framework 5.3.16 that resolved the issue without having to add the --add-opens JVM option.

For reference, the error for me was happening because I had autowired a Supplier bean (not for Spring cloud function).

Upvotes: 1

kriegaex
kriegaex

Reputation: 67297

My first guess is that you want to run an older Spring version on a JRE 16+. Probably that old Spring version depends on an equally dated CGLIB version which uses internal Java APIs now blocked due to JEP 396, which was implemented for Java 16. Maybe you can simply upgrade CGLIB and continue to use your old Spring version, maybe you need to upgrade both. Without more detailed information from you, it is hard to say. A minimal example Maven or Gradle project on GitHub, reproducing the problem, would be great.

On a second thought, maybe for now you can get away with adding

--add-opens java.base/java.lang=ALL-UNNAMED

to your JVM command line. But even if it would work, it would not be a particularly sustainable solution, only a workaround.

Upvotes: 9

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