【解决问题】jdk.internal.misc.Unsafe.allocateUninitializedArray(int): unavailable java.lang.IllegalAccess

一，问题

使用JDK17版本，SpringBoot2.4.2集成oAuth2的时候遇到以下问题

[io.netty.util.internal.PlatformDependent0] [390] - jdk.internal.misc.Unsafe.allocateUninitializedArray(int): unavailable java.lang.IllegalAccessException: class io.netty.util.internal.PlatformDependent0$6 cannot access class jdk.internal.misc.Unsafe (in module java.base) because module java.base does not export jdk.internal.misc to unnamed module @657c8ad9

完整堆栈：

at jdk.internal.reflect.Reflection.newIllegalAccessException(Reflection.java:392) ~[?:?]
    at java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:674) ~[?:?]
    at java.lang.reflect.Method.invoke(Method.java:560) ~[?:?]
    at io.netty.util.internal.PlatformDependent0$6.run(PlatformDependent0.java:352) ~[netty-common-4.1.58.Final.jar:4.1.58.Final]
    at java.security.AccessController.doPrivileged(AccessController.java:318) ~[?:?]
    at io.netty.util.internal.PlatformDependent0.<clinit>(PlatformDependent0.java:343) ~[netty-common-4.1.58.Final.jar:4.1.58.Final]
    at io.netty.util.internal.PlatformDependent.isAndroid(PlatformDependent.java:293) ~[netty-common-4.1.58.Final.jar:4.1.58.Final]
    at io.netty.util.internal.PlatformDependent.<clinit>(PlatformDependent.java:92) ~[netty-common-4.1.58.Final.jar:4.1.58.Final]
    at io.netty.util.ConstantPool.<init>(ConstantPool.java:32) ~[netty-common-4.1.58.Final.jar:4.1.58.Final]
    at io.netty.util.AttributeKey$1.<init>(AttributeKey.java:27) ~[netty-common-4.1.58.Final.jar:4.1.58.Final]
    at io.netty.util.AttributeKey.<clinit>(AttributeKey.java:27) ~[netty-common-4.1.58.Final.jar:4.1.58.Final]
    at reactor.netty.resources.DefaultPooledConnectionProvider.<clinit>(DefaultPooledConnectionProvider.java:109) ~[reactor-netty-core-1.0.3.jar:1.0.3]
    at reactor.netty.resources.ConnectionProvider$Builder.build(ConnectionProvider.java:283) ~[reactor-netty-core-1.0.3.jar:1.0.3]
    at reactor.netty.resources.ConnectionProvider.create(ConnectionProvider.java:160) ~[reactor-netty-core-1.0.3.jar:1.0.3]
    at reactor.netty.tcp.TcpResources.create(TcpResources.java:323) ~[reactor-netty-core-1.0.3.jar:1.0.3]
    at reactor.netty.tcp.TcpResources.getOrCreate(TcpResources.java:277) ~[reactor-netty-core-1.0.3.jar:1.0.3]
    at reactor.netty.http.HttpResources.get(HttpResources.java:98) ~[reactor-netty-http-1.0.3.jar:1.0.3]
    at org.springframework.http.client.reactive.ReactorResourceFactory.afterPropertiesSet(ReactorResourceFactory.java:202) ~[spring-web-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1847) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1784) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:609) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1380) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:541) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1336) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1179) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:571) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) [spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) [spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213) [spring-beans-5.3.3.jar:5.3.3]
    at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.getWebServerFactory(ReactiveWebServerApplicationContext.java:118) [spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.createWebServer(ReactiveWebServerApplicationContext.java:90) [spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.onRefresh(ReactiveWebServerApplicationContext.java:78) [spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:582) [spring-context-5.3.3.jar:5.3.3]
    at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.refresh(ReactiveWebServerApplicationContext.java:63) [spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) [spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) [spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) [spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) [spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) [spring-boot-2.4.2.jar:2.4.2]

二，解决方法

在运行的配置里加上以下配置

--add-opens=java.base/jdk.internal.misc=ALL-UNNAMED
--add-opens=java.base/java.nio=ALL-UNNAMED
-Dio.netty.tryReflectionSetAccessible=true
--illegal-access=warn

步骤如下：

1，打开编辑配置

2，修改选项， 添加虚拟机选项

3，添加配置，应用

再重新运行。

问题解决！