eureka client无法启动，Failed to introspect Class [org.springframework.cloud.netflix.eureka.config.Discov

异常详情java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.netflix.eureka.config.DiscoveryClientOptionalArgsConfiguration] from ClassLoader [sun.misc.Launcher$AppClassL

拇沐潼大神经

8566人浏览 · 2020-10-25 11:18:28

拇沐潼大神经 · 2020-10-25 11:18:28 发布

异常详情

java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.netflix.eureka.config.DiscoveryClientOptionalArgsConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:481) ~[spring-core-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:358) ~[spring-core-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:414) ~[spring-core-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.lambda$getTypeForFactoryMethod$2(AbstractAutowireCapableBeanFactory.java:742) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) ~[na:1.8.0_261]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:741) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:680) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:648) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1614) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:523) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:495) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:100) ~[spring-context-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:707) ~[spring-context-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:533) ~[spring-context-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) [spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) [spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) [spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
	at com.yyh.Eurekaclient8888Application.main(Eurekaclient8888Application.java:12) [classes/:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_261]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_261]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_261]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_261]
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.3.4.RELEASE.jar:2.3.4.RELEASE]
Caused by: java.lang.NoClassDefFoundError: com/netflix/discovery/AbstractDiscoveryClientOptionalArgs
	at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_261]
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_261]
	at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_261]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:463) ~[spring-core-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	... 26 common frames omitted
Caused by: java.lang.ClassNotFoundException: com.netflix.discovery.AbstractDiscoveryClientOptionalArgs
	at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_261]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:418) ~[na:1.8.0_261]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355) ~[na:1.8.0_261]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[na:1.8.0_261]
	... 30 common frames omitted

2020-10-25 11:10:33.261  WARN 8564 --- [  restartedMain] o.s.boot.SpringApplication               : Unable to close ApplicationContext

java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.netflix.eureka.config.DiscoveryClientOptionalArgsConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:481) ~[spring-core-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:358) ~[spring-core-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:414) ~[spring-core-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.lambda$getTypeForFactoryMethod$2(AbstractAutowireCapableBeanFactory.java:742) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) ~[na:1.8.0_261]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:741) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:680) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:648) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1614) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:523) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:495) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:620) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:612) ~[spring-beans-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:1243) ~[spring-context-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	at org.springframework.boot.SpringApplication.getExitCodeFromMappedException(SpringApplication.java:880) [spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
	at org.springframework.boot.SpringApplication.getExitCodeFromException(SpringApplication.java:868) [spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
	at org.springframework.boot.SpringApplication.handleExitCode(SpringApplication.java:855) [spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
	at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:806) [spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:325) [spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) [spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.3.4.RELEASE.jar:2.3.4.RELEASE]
	at com.yyh.Eurekaclient8888Application.main(Eurekaclient8888Application.java:12) [classes/:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_261]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_261]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_261]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_261]
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.3.4.RELEASE.jar:2.3.4.RELEASE]
Caused by: java.lang.NoClassDefFoundError: com/netflix/discovery/AbstractDiscoveryClientOptionalArgs
	at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_261]
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_261]
	at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_261]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:463) ~[spring-core-5.2.9.RELEASE.jar:5.2.9.RELEASE]
	... 26 common frames omitted
Caused by: java.lang.ClassNotFoundException: com.netflix.discovery.AbstractDiscoveryClientOptionalArgs
	at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_261]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:418) ~[na:1.8.0_261]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355) ~[na:1.8.0_261]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[na:1.8.0_261]
	... 30 common frames omitted

错误分析

查看异常信息，全都是类无法找到，导致创建不了，我们检测一下导入的eureka client包

对比一下eureka server的，发现少了很多依赖包

检查pom文件，少了一个starter

错误解决

将spring-cloud-netflix-eureka-client改成spring-cloud-starter-netflix-eureka-client

最后，启动成功~

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