pom.xml文件首行一直报错(解决）

启动报错信息(未解决）

2021-09-27 09:17:02.213  INFO 16400 --- [           main] demo.boot.MainApplication                : Starting MainApplication on LAPTOP-VVDAN0HR with PID 16400 (E:\eclipse2021VersionWorkspace\hello-boot\target\classes started by yyadmin in E:\eclipse2021VersionWorkspace\hello-boot)
2021-09-27 09:17:02.215  INFO 16400 --- [           main] demo.boot.MainApplication                : No active profile set, falling back to default profiles: default
2021-09-27 09:17:02.276  INFO 16400 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@480d3575: startup date [Mon Sep 27 09:17:02 CST 2021]; root of context hierarchy
2021-09-27 09:17:02.934 ERROR 16400 --- [           main] o.s.boot.SpringApplication               : Application startup failed

java.lang.IllegalStateException: Cannot load configuration class: demo.boot.MainApplication
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:403) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanFactory(ConfigurationClassPostProcessor.java:249) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:281) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:125) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:686) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:524) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at demo.boot.MainApplication.main(MainApplication.java:9) ~[classes/:na]
Caused by: java.lang.ExceptionInInitializerError: null
	at org.springframework.context.annotation.ConfigurationClassEnhancer.newEnhancer(ConfigurationClassEnhancer.java:122) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassEnhancer.enhance(ConfigurationClassEnhancer.java:110) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.enhanceConfigurationClasses(ConfigurationClassPostProcessor.java:393) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	... 12 common frames omitted
Caused by: java.lang.IllegalStateException: Unable to load cache item
	at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:79) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:116) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:291) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.cglib.core.KeyFactory$Generator.create(KeyFactory.java:221) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.cglib.core.KeyFactory.create(KeyFactory.java:174) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.cglib.core.KeyFactory.create(KeyFactory.java:153) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.cglib.proxy.Enhancer.<clinit>(Enhancer.java:73) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	... 15 common frames omitted
Caused by: java.lang.ExceptionInInitializerError: null
	at org.springframework.cglib.core.KeyFactory$Generator.generateClass(KeyFactory.java:243) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:329) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:93) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:91) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
	at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	... 22 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 @778d1062
	at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357) ~[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 org.springframework.cglib.core.ReflectUtils$1.run(ReflectUtils.java:54) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:312) ~[na:na]
	at org.springframework.cglib.core.ReflectUtils.<clinit>(ReflectUtils.java:44) ~[spring-core-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	... 30 common frames omitted

2021-09-27 09:17:02.936  INFO 16400 --- [           main] ationConfigEmbeddedWebApplicationContext : Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@480d3575: startup date [Mon Sep 27 09:17:02 CST 2021]; root of context hierarchy
2021-09-27 09:17:02.938  WARN 16400 --- [           main] ationConfigEmbeddedWebApplicationContext : Exception thrown from LifecycleProcessor on context close

java.lang.IllegalStateException: LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@480d3575: startup date [Mon Sep 27 09:17:02 CST 2021]; root of context hierarchy
	at org.springframework.context.support.AbstractApplicationContext.getLifecycleProcessor(AbstractApplicationContext.java:417) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1002) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:961) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:794) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:325) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at demo.boot.MainApplication.main(MainApplication.java:9) ~[classes/:na]

2021-09-27 09:17:02.939 ERROR 16400 --- [           main] o.s.b.f.s.DefaultListableBeanFactory     : Destroy method on bean with name 'org.springframework.boot.autoconfigure.internalCachingMetadataReaderFactory' threw an exception

java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@480d3575: startup date [Mon Sep 27 09:17:02 CST 2021]; root of context hierarchy
	at org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster(AbstractApplicationContext.java:404) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.ApplicationListenerDetector.postProcessBeforeDestruction(ApplicationListenerDetector.java:97) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:253) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:578) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:554) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:961) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:523) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:968) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1033) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1009) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:961) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:794) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:325) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) ~[spring-boot-1.5.2.RELEASE.jar:1.5.2.RELEASE]
	at demo.boot.MainApplication.main(MainApplication.java:9) ~[classes/:na]