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SpringBoot3.x+JDK17启动报错：RequestScope的Object Bean触发InaccessibleObjectException

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算力阿峰
2026-7-11
SpringBoot 3.x + JDK17 下@RequestScope修饰Object类型Bean启动报错解决

问题场景

使用IntelliJ IDEA启动SpringBoot 3.1.3应用，JDK版本17，定义了一个标注@RequestScope的Object类型Bean，启动时抛出InaccessibleObjectException，尝试在pom.xml和IDEA运行配置中添加JVM参数无效。

相关代码

MydemoApplication.java 

@SpringBootApplication
public class MydemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(MydemoApplication.class, args);
    }

}

MyAppConfig.java 

@Configuration
public class MyAppConfig {

    @Bean
    @RequestScope
    public Object myObject(){
        return new Object();
    }
}

pom.xml 

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.1.3</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>mydemo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>mydemo</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>17</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

报错堆栈信息 

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myObject' defined in BeanDefinition defined in class path resource [com/example/mydemo/MyAppConfig.class]: Could not generate CGLIB subclass of class java.lang.Object: Common causes of this problem include using a final class or a non-visible class
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:605) ~[spring-beans-6.0.11.jar:6.0.11]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:520) ~[spring-beans-6.0.11.jar:6.0.11]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326) ~[spring-beans-6.0.11.jar:6.0.11]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.0.11.jar:6.0.11]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324) ~[spring-beans-6.0.11.jar:6.0.11]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-6.0.11.jar:6.0.11]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:967) ~[spring-beans-6.0.11.jar:6.0.11]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:942) ~[spring-context-6.0.11.jar:6.0.11]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:608) ~[spring-context-6.0.11.jar:6.0.11]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.1.3.jar:3.1.3]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:734) ~[spring-boot-3.1.3.jar:3.1.3]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:436) ~[spring-boot-3.1.3.jar:3.1.3]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) ~[spring-boot-3.1.3.jar:3.1.3]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306) ~[spring-boot-3.1.3.jar:3.1.3]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1295) ~[spring-boot-3.1.3.jar:3.1.3]
    at com.example.mydemo.MydemoApplication.main(MydemoApplication.java:10) ~[classes/:na]
Caused by: org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class java.lang.Object: Common causes of this problem include using a final class or a non-visible class
    at org.springframework.aop.framework.CglibAopProxy.buildProxy(CglibAopProxy.java:222) ~[spring-aop-6.0.11.jar:6.0.11]
    at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:155) ~[spring-aop-6.0.11.jar:6.0.11]
    at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:110) ~[spring-aop-6.0.11.jar:6.0.11]
    at org.springframework.aop.scope.ScopedProxyFactoryBean.setBeanFactory(ScopedProxyFactoryBean.java:115) ~[spring-aop-6.0.11.jar:6.0.11]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1791) ~[spring-beans-6.0.11.jar:6.0.11]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1758) ~[spring-beans-6.0.11.jar:6.0.11]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:598) ~[spring-beans-6.0.11.jar:6.0.11]
    ... 15 common frames omitted
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 @1060b431
    at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:547) ~[spring-core-6.0.11.jar:6.0.11]
    at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:371) ~[spring-core-6.0.11.jar:6.0.11]
    at org.springframework.cglib.proxy.Enhancer.generate(Enhancer.java:575) ~[spring-core-6.0.11.jar:6.0.11]
    at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.lambda$new$1(AbstractClassGenerator.java:107) ~[spring-core-6.0.11.jar:6.0.11]
    at org.springframework.cglib.core.internal.LoadingCache.lambda$createEntry$1(LoadingCache.java:52) ~[spring-core-6.0.11.jar:6.0.11]
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
    at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:57) ~[spring-core-6.0.11.jar:6.0.11]
    at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) ~[spring-core-6.0.11.jar:6.0.11]
    at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:130) ~[spring-core-6.0.11.jar:6.0.11]
    at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:317) ~[spring-core-6.0.11.jar:6.0.11]
    at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:562) ~[spring-core-6.0.11.jar:6.0.11]
    at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:407) ~[spring-core-6.0.11.jar:6.0.11]
    at org.springframework.aop.framework.ObjenesisCglibAopProxy.createProxyClassAndInstance(ObjenesisCglibAopProxy.java:62) ~[spring-aop-6.0.11.jar:6.0.11]
    at org.springframework.aop.framework.CglibAopProxy.buildProxy(CglibAopProxy.java:213) ~[spring-aop-6.0.11.jar:6.0.11]
    ... 21 common frames omitted
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 @1060b431
    at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354) ~[na:na]
    at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297) ~[na:na]
    at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199) ~[na:na]
    at java.base/java.lang.reflect.Method.setAccessible(Method.java:193) ~[na:na]
    at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:505) ~[spring-core-6.0.11.jar:6.0.11]
    ... 34 common frames omitted

IntelliJ IDEA运行配置

IDEA运行配置

解决方案

根本原因

Java的Object类是final类，Spring为@RequestScope这类非单例作用域的Bean生成代理时，默认使用CGLIB动态代理，而CGLIB需要生成目标类的子类，但final类无法被继承，因此代理生成失败。同时JDK17的模块化限制进一步阻止了CGLIB尝试绕过该限制的操作，抛出InaccessibleObjectException。

解决办法

  1. 替换Bean的类型：不要直接使用Object作为Bean的类型，改为自定义的非final类。例如：
@Configuration
public class MyAppConfig {

    @Bean
    @RequestScope
    public MyCustomObject myObject(){
        return new MyCustomObject();
    }
}

// 自定义非final类
class MyCustomObject {
    // 按需添加字段或方法
}

  1. 强制使用JDK动态代理（不推荐）：如果必须保留Object类型，可配置Spring使用JDK动态代理，但由于Object没有实现任何接口，这种方式需要额外处理，实际场景中优先选择第一种方案。

  2. 临时调试参数（不推荐生产使用）：若要绕过模块化限制，需确保JVM参数正确生效，参数为：

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

此参数仅能解决权限问题，无法解决final类不能被CGLIB代理的核心问题，仅用于临时调试。

内容的提问来源于stack exchange，提问作者RKodakandla

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最近更新时间：2026.07.11 09:45:54