dubbo-demo-annotation-consumer run failed

[pursueLife]

• I have searched the issues of this repository and believe that this is not a duplicate.
• I have checked the FAQ of this repository and believe that this is not a duplicate.

Environment

• Dubbo version: 2.7.0
• Operating System version: window
• Java version: jdk8

Steps to reproduce this issue

1. dubbo-demo-annotation-consumer.Application 启动main()方法报错

[16/01/19 11:17:43:179 CST] main INFO annotation.ReferenceAnnotationBeanPostProcessor: class org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor was destroying!
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'demoServiceComponent': Injection of @reference dependencies failed; nested exception is java.lang.UnsupportedOperationException
at org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor.postProcessPropertyValues(ReferenceAnnotationBeanPostProcessor.java:105)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1268)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
at org.springframework.context.annotation.AnnotationConfigApplicationContext.(AnnotationConfigApplicationContext.java:84)
at org.apache.dubbo.demo.consumer.Application.main(Application.java:36)
Caused by: java.lang.UnsupportedOperationException
at java.util.concurrent.CopyOnWriteArrayList$COWIterator.set(CopyOnWriteArrayList.java:1185)
at java.util.Collections.sort(Collections.java:170)
at org.apache.dubbo.rpc.cluster.RouterChain.sort(RouterChain.java:87)
at org.apache.dubbo.rpc.cluster.RouterChain.initWithRouters(RouterChain.java:67)
at org.apache.dubbo.rpc.cluster.RouterChain.(RouterChain.java:57)
at org.apache.dubbo.rpc.cluster.RouterChain.buildChain(RouterChain.java:46)
at org.apache.dubbo.registry.integration.RegistryDirectory.buildRouterChain(RegistryDirectory.java:584)
at org.apache.dubbo.registry.integration.RegistryProtocol.doRefer(RegistryProtocol.java:378)
at org.apache.dubbo.registry.integration.RegistryProtocol.refer(RegistryProtocol.java:361)
at org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.refer(ProtocolListenerWrapper.java:65)
at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper.refer(ProtocolFilterWrapper.java:114)
at org.apache.dubbo.rpc.Protocol$Adaptive.refer(Protocol$Adaptive.java)
at org.apache.dubbo.config.ReferenceConfig.createProxy(ReferenceConfig.java:372)
at org.apache.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:312)
at org.apache.dubbo.config.ReferenceConfig.get(ReferenceConfig.java:236)
at org.apache.dubbo.config.spring.ReferenceBean.getObject(ReferenceBean.java:70)
at org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor$ReferenceFieldElement.inject(ReferenceAnnotationBeanPostProcessor.java:376)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
at org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor.postProcessPropertyValues(ReferenceAnnotationBeanPostProcessor.java:101)
... 12 more

[pursueLife]

RouterChain类
this.routers = new CopyOnWriteArrayList<>(builtinRouters);
this.sort();
CopyOnWriteArrayList不支持Collections.sort

[CrazyHZM]

thank you , I will fix it

[pursueLife]

Thats all right!

[shjk]

2.7.1-SNAPSHOT 启动 dubbo-demo-api-consumer 也报这样的错误

Exception in thread "main" java.lang.UnsupportedOperationException
at java.util.concurrent.CopyOnWriteArrayList$COWIterator.set(CopyOnWriteArrayList.java:1185)
at java.util.Collections.sort(Collections.java:170)
at org.apache.dubbo.rpc.cluster.RouterChain.sort(RouterChain.java:87)

[ylylc]

我也遇到了这个问题，解决办法是：提高jdk版本到1.8.0_90以上试试。我的1.8.0_92的可以