Quarkus 启动不了，报错 Failed to start Quarkus: java.lang.RuntimeException: org.hibernate.boot.registry.classloading.spi.ClassLoadingException: Unable to load class [***]

问题：

Failed to start Quarkus: java.lang.RuntimeException: org.hibernate.boot.registry.classloading.spi.ClassLoadingException: Unable to load class [crawler.CloudDoc]

Caused by: org.hibernate.bytecode.enhance.spi.EnhancementException: Failed to enhance class ***
  at org.hibernate.bytecode.enhance.internal.bytebuddy.EnhancerImpl.enhance(EnhancerImpl.java:138)
	at io.quarkus.hibernate.orm.deployment.HibernateEntityEnhancer$HibernateEnhancingClassVisitor.hibernateEnhancement(HibernateEntityEnhancer.java:81)
	at io.quarkus.hibernate.orm.deployment.HibernateEntityEnhancer$HibernateEnhancingClassVisitor.visitEnd(HibernateEntityEnhancer.java:74)
	at org.objectweb.asm.ClassReader.accept(ClassReader.java:721)
	at org.objectweb.asm.ClassReader.accept(ClassReader.java:401)
	at io.quarkus.bootstrap.classloading.QuarkusClassLoader.handleTransform(QuarkusClassLoader.java:403)
	at io.quarkus.bootstrap.classloading.QuarkusClassLoader.loadClass(QuarkusClassLoader.java:332)
	at io.quarkus.bootstrap.classloading.QuarkusClassLoader.loadClass(QuarkusClassLoader.java:294)
	at java.base/java.lang.Class.forNameImpl(Native Method)
	at java.base/java.lang.Class.forName(Class.java:410)
	at io.quarkus.hibernate.orm.runtime.service.FlatClassLoaderService.classForName(FlatClassLoaderService.java:36)
	... 24 more
Caused by: java.lang.UnsupportedOperationException
	at net.bytebuddy.jar.asm.ClassVisitor.visitNestMemberExperimental(ClassVisitor.java:248)
	at net.bytebuddy.jar.asm.ClassReader.accept(ClassReader.java:651)
	at net.bytebuddy.jar.asm.ClassReader.accept(ClassReader.java:391)
	at net.bytebuddy.pool.TypePool$Default.parse(TypePool.java:1051)
	at net.bytebuddy.pool.TypePool$Default.doDescribe(TypePool.java:1035)
	at net.bytebuddy.pool.TypePool$Default$WithLazyResolution.access$401(TypePool.java:1115)
	at net.bytebuddy.pool.TypePool$Default$WithLazyResolution.doResolve(TypePool.java:1190)
	at net.bytebuddy.pool.TypePool$Default$WithLazyResolution$LazyTypeDescription.delegate(TypePool.java:1252)
	at net.bytebuddy.description.type.TypeDescription$AbstractBase$OfSimpleType$WithDelegation.getSuperClass(TypeDescription.java:7051)
	at net.bytebuddy.description.type.TypeDescription$AbstractBase.isAssignable(TypeDescription.java:6563)
	at net.bytebuddy.description.type.TypeDescription$AbstractBase.isAssignableTo(TypeDescription.java:6596)
	at net.bytebuddy.description.type.TypeDescription$AbstractBase.isAssignableTo(TypeDescription.java:6591)
	at org.hibernate.bytecode.enhance.internal.bytebuddy.EnhancerImpl.collectCollectionFields(EnhancerImpl.java:398)
	at org.hibernate.bytecode.enhance.internal.bytebuddy.EnhancerImpl.doEnhance(EnhancerImpl.java:189)
	at org.hibernate.bytecode.enhance.internal.bytebuddy.EnhancerImpl.lambda$enhance$0(EnhancerImpl.java:132)
	at org.hibernate.bytecode.enhance.internal.bytebuddy.EnhancerImpl$$Lambda$468.000000008DC64420.apply(Unknown Source)
	at org.hibernate.bytecode.internal.bytebuddy.ByteBuddyState.rewrite(ByteBuddyState.java:141)
	at org.hibernate.bytecode.enhance.internal.bytebuddy.EnhancerImpl.enhance(EnhancerImpl.java:132)
	... 34 more

Caused by: org.hibernate.bytecode.enhance.spi.EnhancementException: Failed to enhance class ***

at org.hibernate.bytecode.enhance.internal.bytebuddy.EnhancerImpl.enhance(EnhancerImpl.java:138)

at io.quarkus.hibernate.orm.deployment.HibernateEntityEnhancer$HibernateEnhancingClassVisitor.hibernateEnhancement(HibernateEntityEnhancer.java:81)

at io.quarkus.hibernate.orm.deployment.HibernateEntityEnhancer$HibernateEnhancingClassVisitor.visitEnd(HibernateEntityEnhancer.java:74)

at org.objectweb.asm.ClassReader.accept(ClassReader.java:721)

at org.objectweb.asm.ClassReader.accept(ClassReader.java:401)

at io.quarkus.bootstrap.classloading.QuarkusClassLoader.handleTransform(QuarkusClassLoader.java:403)

at io.quarkus.bootstrap.classloading.QuarkusClassLoader.loadClass(QuarkusClassLoader.java:332)

at io.quarkus.bootstrap.classloading.QuarkusClassLoader.loadClass(QuarkusClassLoader.java:294)

at java.base/java.lang.Class.forNameImpl(Native Method)

at java.base/java.lang.Class.forName(Class.java:410)

at io.quarkus.hibernate.orm.runtime.service.FlatClassLoaderService.classForName(FlatClassLoaderService.java:36)

... 24 more

Caused by: java.lang.UnsupportedOperationException

at net.bytebuddy.jar.asm.ClassVisitor.visitNestMemberExperimental(ClassVisitor.java:248)

at net.bytebuddy.jar.asm.ClassReader.accept(ClassReader.java:651)

at net.bytebuddy.jar.asm.ClassReader.accept(ClassReader.java:391)

at net.bytebuddy.pool.TypePool$Default.parse(TypePool.java:1051)

at net.bytebuddy.pool.TypePool$Default.doDescribe(TypePool.java:1035)

at net.bytebuddy.pool.TypePool$Default$WithLazyResolution.access$401(TypePool.java:1115)

at net.bytebuddy.pool.TypePool$Default$WithLazyResolution.doResolve(TypePool.java:1190)

at net.bytebuddy.pool.TypePool$Default$WithLazyResolution$LazyTypeDescription.delegate(TypePool.java:1252)

at net.bytebuddy.description.type.TypeDescription$AbstractBase$OfSimpleType$WithDelegation.getSuperClass(TypeDescription.java:7051)

at net.bytebuddy.description.type.TypeDescription$AbstractBase.isAssignable(TypeDescription.java:6563)

at net.bytebuddy.description.type.TypeDescription$AbstractBase.isAssignableTo(TypeDescription.java:6596)

at net.bytebuddy.description.type.TypeDescription$AbstractBase.isAssignableTo(TypeDescription.java:6591)

at org.hibernate.bytecode.enhance.internal.bytebuddy.EnhancerImpl.collectCollectionFields(EnhancerImpl.java:398)

at org.hibernate.bytecode.enhance.internal.bytebuddy.EnhancerImpl.doEnhance(EnhancerImpl.java:189)

at org.hibernate.bytecode.enhance.internal.bytebuddy.EnhancerImpl.lambda$enhance$0(EnhancerImpl.java:132)

at org.hibernate.bytecode.enhance.internal.bytebuddy.EnhancerImpl$$Lambda$468.000000008DC64420.apply(Unknown Source)

at org.hibernate.bytecode.internal.bytebuddy.ByteBuddyState.rewrite(ByteBuddyState.java:141)

at org.hibernate.bytecode.enhance.internal.bytebuddy.EnhancerImpl.enhance(EnhancerImpl.java:132)

... 34 more

解决：

引入了一些jar 造成有些jar 版本乱了

pom.xml 中找到对应的影响依赖项目，排除掉

&lt;exclusion&gt;
  &lt;groupId&gt;net.bytebuddy&lt;/groupId&gt;
  &lt;artifactId&gt;byte-buddy&lt;/artifactId&gt;
&lt;/exclusion&gt;

<groupId>net.bytebuddy</groupId>

<artifactId>byte-buddy</artifactId>

</exclusion>

参考：

IT问题

程序员的疑难杂症录

Quarkus 启动不了，报错 Failed to start Quarkus: java.lang.RuntimeException: org.hibernate.boot.registry.classloading.spi.ClassLoadingException: Unable to load class [***]

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