错误描述

产生原因: 我idea默认用的是jdk17，在jdk17中很多类都弃用或者删了，切换成jdk8即可。

在spring整合seata时出现的错误，错误如下：

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-08-09 14:03:16.565 ERROR 15912 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'globalTransactionScanner' defined in class path resource [io/seata/spring/boot/autoconfigure/SeataAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [io.seata.spring.annotation.GlobalTransactionScanner]: Factory method 'globalTransactionScanner' threw exception; nested exception is java.lang.ExceptionInInitializerError
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658) ~[spring-beans-5.3.22.jar:5.3.22]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:638) ~[spring-beans-5.3.22.jar:5.3.22]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352) ~[spring-beans-5.3.22.jar:5.3.22]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195) ~[spring-beans-5.3.22.jar:5.3.22]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.3.22.jar:5.3.22]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.22.jar:5.3.22]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.22.jar:5.3.22]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.22.jar:5.3.22]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.22.jar:5.3.22]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213) ~[spring-beans-5.3.22.jar:5.3.22]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:258) ~[spring-context-5.3.22.jar:5.3.22]
	at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:762) ~[spring-context-5.3.22.jar:5.3.22]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:567) ~[spring-context-5.3.22.jar:5.3.22]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.2.jar:2.7.2]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:734) ~[spring-boot-2.7.2.jar:2.7.2]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.2.jar:2.7.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) ~[spring-boot-2.7.2.jar:2.7.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306) ~[spring-boot-2.7.2.jar:2.7.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1295) ~[spring-boot-2.7.2.jar:2.7.2]
	at com.xs.ProtocolApplication.main(ProtocolApplication.java:17) ~[classes/:na]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [io.seata.spring.annotation.GlobalTransactionScanner]: Factory method 'globalTransactionScanner' threw exception; nested exception is java.lang.ExceptionInInitializerError
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.3.22.jar:5.3.22]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653) ~[spring-beans-5.3.22.jar:5.3.22]
	... 19 common frames omitted
Caused by: java.lang.ExceptionInInitializerError: null
	at net.sf.cglib.core.KeyFactory$Generator.generateClass(KeyFactory.java:166) ~[cglib-3.1.jar:na]
	at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25) ~[cglib-3.1.jar:na]
	at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:216) ~[cglib-3.1.jar:na]
	at net.sf.cglib.core.KeyFactory$Generator.create(KeyFactory.java:144) ~[cglib-3.1.jar:na]
	at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:116) ~[cglib-3.1.jar:na]
	at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:108) ~[cglib-3.1.jar:na]
	at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:104) ~[cglib-3.1.jar:na]
	at net.sf.cglib.proxy.Enhancer.<clinit>(Enhancer.java:69) ~[cglib-3.1.jar:na]
	at io.seata.config.ConfigurationCache.proxy(ConfigurationCache.java:104) ~[seata-all-1.5.1.jar:1.5.1]
	at io.seata.config.ConfigurationFactory.buildConfiguration(ConfigurationFactory.java:138) ~[seata-all-1.5.1.jar:1.5.1]
	at io.seata.config.ConfigurationFactory.getInstance(ConfigurationFactory.java:94) ~[seata-all-1.5.1.jar:1.5.1]
	at io.seata.spring.annotation.GlobalTransactionScanner.<init>(GlobalTransactionScanner.java:105) ~[seata-all-1.5.1.jar:1.5.1]
	at io.seata.spring.annotation.GlobalTransactionScanner.<init>(GlobalTransactionScanner.java:162) ~[seata-all-1.5.1.jar:1.5.1]
	at io.seata.spring.boot.autoconfigure.SeataAutoConfiguration.globalTransactionScanner(SeataAutoConfiguration.java:83) ~[seata-spring-boot-starter-1.5.1.jar:1.5.1]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.3.22.jar:5.3.22]
	... 20 common frames omitted
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 @710f4dc7
	at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354) ~[na:na]
	at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297) ~[na:na]
	at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199) ~[na:na]
	at java.base/java.lang.reflect.Method.setAccessible(Method.java:193) ~[na:na]
	at net.sf.cglib.core.ReflectUtils$2.run(ReflectUtils.java:56) ~[cglib-3.1.jar:na]
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:318) ~[na:na]
	at net.sf.cglib.core.ReflectUtils.<clinit>(ReflectUtils.java:46) ~[cglib-3.1.jar:na]
	... 39 common frames omitted

2022-08-09 14:03:16.566  WARN 15912 --- [       Thread-1] c.a.n.common.http.HttpClientBeanHolder   : [HttpClientBeanHolder] Start destroying common HttpClient
2022-08-09 14:03:16.567  WARN 15912 --- [       Thread-5] c.a.nacos.common.notify.NotifyCenter     : [NotifyCenter] Start destroying Publisher
2022-08-09 14:03:16.567  WARN 15912 --- [       Thread-5] c.a.nacos.common.notify.NotifyCenter     : [NotifyCenter] Destruction of the end
2022-08-09 14:03:16.567  WARN 15912 --- [       Thread-1] c.a.n.common.http.HttpClientBeanHolder   : [HttpClientBeanHolder] Destruction of the end

解决方案

• 原因： 找不到 globalTransactionScanner这个类，无法初始化。
• 解决： 我idea中用的是 jdk 17 ，切换成 jdk 8 就好了。

总结

~ 太坑爹了啊……搞了两天，结果是jdk 版本的问题。

我裂开了……