英文:
java.lang.IllegalAccessException: class io.netty.util.internal.PlatformDependent0$6
问题
我尝试为暴露 REST API 的 SpringBoot 应用程序实现 Redis 缓存。以下是重要的代码片段和 Maven 构建文件。
启动注解：
@SpringBootApplication
@EnableAsync
@EnableScheduling
@EnableCaching
public class Application {
pom.xml（仅列出相关依赖项）：
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.1.RELEASE</version>
<relativePath/>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.10</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>3.9.1</version>
<scope>test</scope>
</dependency>
</dependencies>
从 IntelliJ IDE 环境中运行。
- 项目 SDK：Java 11
- 项目语言级别：11
在项目启动时，我遇到了以下异常，但启动成功完成。这个异常的根本原因是什么，我该如何解决？
java.lang.UnsupportedOperationException: Reflective setAccessible(true) disabled
at io.netty.util.internal.ReflectionUtil.trySetAccessible(ReflectionUtil.java:31)
at io.netty.util.internal.PlatformDependent0$4.run(PlatformDependent0.java:233)
at java.base/java.security.AccessController.doPrivileged(Native Method)
...
感谢您提前的帮助。
英文:
I was trying to implement Redis caching for SpringBoot app which exposes Rest API. Important code snippets and maven build file enclosed.
Start-up annotations:
@SpringBootApplication
@EnableAsync
@EnableScheduling
@EnableCaching
public class Application {
pom.xml(Only relevant dependencies listed) :
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.1.RELEASE</version>
<relativePath/>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.10</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>3.9.1</version>
<scope>test</scope>
</dependency>
</dependencies>
Running from IntelliJ IDE environment.
- Project SDK : Java 11
- Project Language Level : 11
At project start-up I am encountering below exception but start-up completes successfully. What is the root cause of the exception and how I can solve it?
java.lang.UnsupportedOperationException: Reflective setAccessible(true) disabled
at io.netty.util.internal.ReflectionUtil.trySetAccessible(ReflectionUtil.java:31)
at io.netty.util.internal.PlatformDependent0$4.run(PlatformDependent0.java:233)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at io.netty.util.internal.PlatformDependent0.<clinit>(PlatformDependent0.java:227)
at io.netty.util.internal.PlatformDependent.isAndroid(PlatformDependent.java:289)
at io.netty.util.internal.PlatformDependent.<clinit>(PlatformDependent.java:92)
at io.netty.util.HashedWheelTimer.<init>(HashedWheelTimer.java:109)
at io.netty.util.HashedWheelTimer.<init>(HashedWheelTimer.java:218)
at io.netty.util.HashedWheelTimer.<init>(HashedWheelTimer.java:197)
at io.netty.util.HashedWheelTimer.<init>(HashedWheelTimer.java:179)
at io.netty.util.HashedWheelTimer.<init>(HashedWheelTimer.java:163)
at io.lettuce.core.resource.DefaultClientResources.<init>(DefaultClientResources.java:167)
at io.lettuce.core.resource.DefaultClientResources$Builder.build(DefaultClientResources.java:530)
at io.lettuce.core.resource.DefaultClientResources.create(DefaultClientResources.java:231)
at org.springframework.boot.autoconfigure.data.redis.LettuceConnectionConfiguration.lettuceClientResources(LettuceConnectionConfiguration.java:66)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:650)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:483)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:893)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
at com.iyzico.challenge.Application.main(Application.java:18)
2020-09-24 12:25:24.039 DEBUG 56915 --- [ main] i.n.util.internal.PlatformDependent0 : java.nio.Bits.unaligned: available, true
2020-09-24 12:25:24.040 DEBUG 56915 --- [ main] i.n.util.internal.PlatformDependent0 : 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 @21ba2445
at java.base/jdk.internal.reflect.Reflection.newIllegalAccessException(Reflection.java:361)
at java.base/java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:591)
at java.base/java.lang.reflect.Method.invoke(Method.java:558)
at io.netty.util.internal.PlatformDependent0$6.run(PlatformDependent0.java:347)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at io.netty.util.internal.PlatformDependent0.<clinit>(PlatformDependent0.java:338)
at io.netty.util.internal.PlatformDependent.isAndroid(PlatformDependent.java:289)
at io.netty.util.internal.PlatformDependent.<clinit>(PlatformDependent.java:92)
at io.netty.util.HashedWheelTimer.<init>(HashedWheelTimer.java:109)
at io.netty.util.HashedWheelTimer.<init>(HashedWheelTimer.java:218)
at io.netty.util.HashedWheelTimer.<init>(HashedWheelTimer.java:197)
at io.netty.util.HashedWheelTimer.<init>(HashedWheelTimer.java:179)
at io.netty.util.HashedWheelTimer.<init>(HashedWheelTimer.java:163)
at io.lettuce.core.resource.DefaultClientResources.<init>(DefaultClientResources.java:167)
at io.lettuce.core.resource.DefaultClientResources$Builder.build(DefaultClientResources.java:530)
at io.lettuce.core.resource.DefaultClientResources.create(DefaultClientResources.java:231)
at org.springframework.boot.autoconfigure.data.redis.LettuceConnectionConfiguration.lettuceClientResources(LettuceConnectionConfiguration.java:66)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:650)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:483)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:893)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
at com.iyzico.challenge.Application.main(Application.java:18)
Thanks in advance
答案1
得分: 3
根据 https://github.com/netty/netty/issues/7817 的内容："这不是一个错误，而是带有堆栈跟踪的调试信息，将日志记录器级别从调试更改为其他级别，例如 info 或 warn。"
您需要更改此软件包的日志记录器级别以抑制这些警告。
在您的 logback-spring.xml 文件中添加以下行以抑制所有消息。
<logger name="io.netty.util" level="ERROR"/>
英文:
As per https://github.com/netty/netty/issues/7817 "It's not an error, it's a debug message with a stacktrace, change your logger level to something else apart from debug eg. info or warn."
You need to change your logger level of this package to suppress these warnings.
Add this line below in your logback-spring.xml to suppress all messages.
<logger name="io.netty.util" level="ERROR"/>
答案2
得分: 1
我通过将以下内容添加到JVM参数中进行修复：
--add-opens java.base/jdk.internal.misc=ALL-UNNAMED --add-opens java.base/java.nio=ALL-UNNAMED --add-opens java.base/java.security=ALL-UNNAMED --add-opens jdk.unsupported/sun.misc=ALL-UNNAMED --add-opens java.base/sun.security.action=ALL-UNNAMED --add-opens jdk.naming.rmi/com.sun.jndi.rmi.registry=ALL-UNNAMED --add-opens java.base/sun.net=ALL-UNNAMED --add-opens java.base/java.lang=ALL-UNNAMED --add-opens java.base/java.lang.reflect=ALL-UNNAMED
这些参数可能包含与此问题无关的其他内容，但我无法将它们挑选出来。
英文:
I fix it by adding this to JVM args
> --add-opens java.base/jdk.internal.misc=ALL-UNNAMED --add-opens java.base/java.nio=ALL-UNNAMED --add-opens java.base/java.security=ALL-UNNAMED --add-opens jdk.unsupported/sun.misc=ALL-UNNAMED --add-opens java.base/sun.security.action=ALL-UNNAMED --add-opens jdk.naming.rmi/com.sun.jndi.rmi.registry=ALL-UNNAMED --add-opens java.base/sun.net=ALL-UNNAMED --add-opens java.base/java.lang=ALL-UNNAMED --add-opens java.base/java.lang.reflect=ALL-UNNAMED
these args may have other that is not related to this problem, but I can not pick them out
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