org.springframework.cglib.core.ReflectUtils$1 的非法反射访问 [英] Illegal reflective access by org.springframework.cglib.core.ReflectUtils$1

问题描述

我的 JDK 9+181 Spring Boot 2.0.0.BUILD-SNAPSHOT CLI 应用程序在启动时显示此警告:

My JDK 9+181 Spring Boot 2.0.0.BUILD-SNAPSHOT CLI application displays this warning on startup:

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.springframework.cglib.core.ReflectUtils$1 (jar:file:/home/jan/src/fm-cli/target/fm-cli-0.1.0-SNAPSHOT.jar!/BOOT-INF/lib/spring-core-5.0.0.RELEASE.jar!/) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain)
WARNING: Please consider reporting this to the maintainers of org.springframework.cglib.core.ReflectUtils$1

这是一个控制台应用程序，所以我需要禁用这个警告——我该怎么做?

This is a console application, so I need to disable this warning -- how can I do that?

注:本题询问具体的问题是如何禁用Spring触发的这个警告；它不是 JDK9 的副本:发生了非法的反射访问操作.org.python.core.PySystemState 处理不同库中的类似症状.

Note: This question asks the specific question of how to disable this warning triggered by Spring; it is not a duplicate of JDK9: An illegal reflective access operation has occurred. org.python.core.PySystemState which deals with a similar symptom in a different library.

推荐答案

在 JDK 9+ 中，向 JVM 添加以下选项以禁用 Spring 使用 CGLIB 的警告:

In JDK 9+, add the following option to the JVM to disable the warning from Spring's use of CGLIB:

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

例如:

java --add-opens java.base/java.lang=ALL-UNNAMED -jar target/*.jar

无需报告；这是一个 已知的 Spring 错误.

No need to report it; it's a known Spring bug.

发生这种情况是因为新的 JDK 9 模块系统检测到在(不久的)将来某个时候将被禁止的非法访问.您可以阅读更多关于 JDK 9 模块系统在这里.

This happens because the new JDK 9 module system detected an illegal access that will be disallowed sometime in the (near) future. You can read more about the JDK 9 Module system here.

更新:

JDK 9+ 和 Spring 5.1+ 提供了针对此问题的修复.

A fix for this issue is available JDK 9+ with Spring 5.1+.

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