一、该问题的重现步骤是什么?
复现代码如下
package org.springblade.test; import lombok.Data; import org.springblade.core.tool.utils.BeanUtil; import java.io.Serial; import java.io.Serializable; public class BeanUtilTest { public static void main(String[] args) { A a = new A(); a.setId(1L); a.setIsDeleted(0); BeanUtil.copy(a, B.class); } @Data public static class A implements Serializable { @Serial private static final long serialVersionUID = 1L; private Long id; private Integer isDeleted; } @Data public static class B implements Serializable { @Serial private static final long serialVersionUID = 1L; private Long id; private Integer isDeleted; } }
二、你期待的结果是什么?实际看到的又是什么?
期待结果:代码正常运行
实际结果:代码无法正常运行
三、你正在使用的是什么产品,什么版本?在什么操作系统上?
产品: bladex-boot
版本:4.1.0.RELEASE
系统:Windows 11
四、请提供详细的错误堆栈信息,这很重要。
Exception in thread "main" org.springframework.cglib.core.ReflectUtils$2: No compatible defineClass mechanism detected: JVM should be started with --add-opens=java.base/java.lang=ALL-UNNAMED for ClassLoader.defineClass to be accessible. On the module path, you may not be able to define this CGLIB-generated class at all. at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:547) at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:371) at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.lambda$new$1(AbstractClassGenerator.java:107) at org.springframework.cglib.core.internal.LoadingCache.lambda$createEntry$1(LoadingCache.java:52) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:57) at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:130) at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:317) at org.springblade.core.tool.beans.BladeBeanCopier$Generator.create(BladeBeanCopier.java:147) at org.springblade.core.tool.beans.BladeBeanCopier.lambda$create$0(BladeBeanCopier.java:88) at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1708) at org.springblade.core.tool.beans.BladeBeanCopier.create(BladeBeanCopier.java:82) at org.springblade.core.tool.beans.BladeBeanCopier.create(BladeBeanCopier.java:76) at org.springblade.core.tool.utils.BeanUtil.copy(BeanUtil.java:163) at org.springblade.core.tool.utils.BeanUtil.copy(BeanUtil.java:142) at org.springblade.test.BeanUtilTest.main(BeanUtilTest.java:22) 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 @79b06cab at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354) at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297) at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:200) at java.base/java.lang.reflect.Method.setAccessible(Method.java:194) at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:505) ... 16 more Process finished with exit code 1
五、若有更多详细信息,请在下面提供。
报错的第一行已经给你提示了,适当的时候建议多多百度和谷歌。90%的报错都能搜到解决方案。
解决方案:https://www.kancloud.cn/smallchill/blade/3197986
这样固然可以解决,但这不是破坏了模块的隔离性了吗?我的想法是BeanUtil工具类本身去解决
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