feign.sentinel.enabled=true 启动报错

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'feignTargeter' defined in class path resource [org/springframework/cloud/openfeign/FeignAutoConfiguration$HystrixFeignTargeterConfiguration.class]: Initialization of bean failed; nested exception is org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.cloud.openfeign.HystrixTargeter: Common causes of this problem include using a final class or a non-visible class; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.IllegalAccessError-->class org.springframework.cloud.openfeign.HystrixTargeter$$EnhancerBySpringCGLIB$$f29c8515 cannot access its superclass org.springframework.cloud.openfeign.HystrixTargeter 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602) 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) 	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) 	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) 	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) 	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:227) 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveNamedBean(DefaultListableBeanFactory.java:1175) 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveBean(DefaultListableBeanFactory.java:420) 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveBean(DefaultListableBeanFactory.java:426) 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:350) 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:343) 	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1127) 	at org.springframework.cloud.context.named.NamedContextFactory.getInstance(NamedContextFactory.java:148) 	at org.springframework.cloud.openfeign.FeignClientFactoryBean.get(FeignClientFactoryBean.java:281) 	at org.springframework.cloud.openfeign.FeignClientFactoryBean.loadBalance(FeignClientFactoryBean.java:317) 	at org.springframework.cloud.openfeign.FeignClientFactoryBean.getTarget(FeignClientFactoryBean.java:347) 	at org.springframework.cloud.openfeign.FeignClientFactoryBean.getObject(FeignClientFactoryBean.java:327) 	at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:169) 	... 36 common frames omitted Caused by: org.springframework.aop.framework.AopConfigException: Could not generate CGLIB subclass of class org.springframework.cloud.openfeign.HystrixTargeter: Common causes of this problem include using a final class or a non-visible class; nested exception is org.springframework.cglib.core.CodeGenerationException: java.lang.IllegalAccessError-->class org.springframework.cloud.openfeign.HystrixTargeter$$EnhancerBySpringCGLIB$$f29c8515 cannot access its superclass org.springframework.cloud.openfeign.HystrixTargeter 	at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:208) 	at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:110) 	at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:471) 	at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:350) 	at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:299) 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:430) 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1798) 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) 	... 53 common frames omitted Caused by: org.springframework.cglib.core.CodeGenerationException: java.lang.IllegalAccessError-->class org.springframework.cloud.openfeign.HystrixTargeter$$EnhancerBySpringCGLIB$$f29c8515 cannot access its superclass org.springframework.cloud.openfeign.HystrixTargeter 	at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:538) 	at org.springframework.cglib.core.AbstractClassGenerator.generate(AbstractClassGenerator.java:363) 	at org.springframework.cglib.proxy.Enhancer.generate(Enhancer.java:585) 	at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:110) 	at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData$3.apply(AbstractClassGenerator.java:108) 	at org.springframework.cglib.core.internal.LoadingCache$2.call(LoadingCache.java:54) 	at java.util.concurrent.FutureTask.run(FutureTask.java:266) 	at org.springframework.cglib.core.internal.LoadingCache.createEntry(LoadingCache.java:61) 	at org.springframework.cglib.core.internal.LoadingCache.get(LoadingCache.java:34) 	at org.springframework.cglib.core.AbstractClassGenerator$ClassLoaderData.get(AbstractClassGenerator.java:134) 	at org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:319) 	at org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:572) 	at org.springframework.cglib.proxy.Enhancer.createClass(Enhancer.java:419) 	at org.springframework.aop.framework.ObjenesisCglibAopProxy.createProxyClassAndInstance(ObjenesisCglibAopProxy.java:57) 	at org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:205) 	... 60 common frames omitted Caused by: java.lang.IllegalAccessError: class org.springframework.cloud.openfeign.HystrixTargeter$$EnhancerBySpringCGLIB$$f29c8515 cannot access its superclass org.springframework.cloud.openfeign.HystrixTargeter 	at java.lang.ClassLoader.defineClass1(Native Method) 	at java.lang.ClassLoader.defineClass(ClassLoader.java:763) 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 	at java.lang.reflect.Method.invoke(Method.java:498) 	at org.springframework.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:535) 	... 74 common frames omitted

springcloud: Hoxton.SR9

alibabacloud:2.2.6.RELEASE

openfeign 2.2.6.RELEASE

主要原因是这个包：

          <dependency>             <groupId>org.springframework.boot</groupId>             <artifactId>spring-boot-devtools</artifactId>             <scope>runtime</scope>             <optional>true</optional>         </dependency>

去掉就启动就没问题了。

相关github:    https://github.com/alibaba/spring-cloud-alibaba/issues/678