Environment
- Dubbo version: 2.6.2
- Operating System version: Linux
- Java version: 8
Steps to reproduce this issue
- 添加路由
- 指定相同的priority
- 引发异常：java.lang.IllegalArgumentException: Comparison method violates its general contract!
查看源码 ConditionRouter、ScriptRouter、TagRouter 的 compareTo 方法实现类似，会引发同类问题。
Pls. provide [GitHub address] to reproduce this issue.
Expected Result
What do you expected from the above steps？
Actual Result
What actually happens?
If there is an exception, please attach the exception trace:
ERROR com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry - [DUBBO] Failed to notify for subscribe consumer://xx.xx.xx.xx/com.xxx.service.XxxService?application=xxx-service&category=providers,configurators,routers&default.check=true&dubbo=2.6.2&interface=com.xxx.service.XxxService&methods=getXxx,setXxx&owner=xxx&pid=160275&revision=3.5.9&side=consumer&timeout=10000×tamp=1542092651604, waiting for retry, cause: Comparison method violates its general contract!, dubbo version: 2.6.2, current host: xx.xx.xx
java.lang.IllegalArgumentException: Comparison method violates its general contract!
at java.util.ComparableTimSort.mergeLo(ComparableTimSort.java:740)
at java.util.ComparableTimSort.mergeAt(ComparableTimSort.java:477)
at java.util.ComparableTimSort.mergeCollapse(ComparableTimSort.java:402)
at java.util.ComparableTimSort.sort(ComparableTimSort.java:209)
at java.util.Arrays.sort(Arrays.java:1312)
at java.util.Arrays.sort(Arrays.java:1506)
at java.util.ArrayList.sort(ArrayList.java:1454)
at java.util.Collections.sort(Collections.java:141)
at com.alibaba.dubbo.rpc.cluster.directory.AbstractDirectory.setRouters(AbstractDirectory.java:110)
at com.alibaba.dubbo.registry.integration.RegistryDirectory.notify(RegistryDirectory.java:211)
at com.alibaba.dubbo.registry.support.AbstractRegistry.notify(AbstractRegistry.java:414)
at com.alibaba.dubbo.registry.support.FailbackRegistry.doNotify(FailbackRegistry.java:274)
at com.alibaba.dubbo.registry.support.FailbackRegistry.notify(FailbackRegistry.java:260)
at com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry.doSubscribe(ZookeeperRegistry.java:190)
at com.alibaba.dubbo.registry.support.FailbackRegistry.subscribe(FailbackRegistry.java:190)
at com.alibaba.dubbo.registry.integration.RegistryDirectory.subscribe(RegistryDirectory.java:159)
at com.alibaba.dubbo.registry.integration.RegistryProtocol.doRefer(RegistryProtocol.java:305)
at com.alibaba.dubbo.registry.integration.RegistryProtocol.refer(RegistryProtocol.java:286)
at com.alibaba.dubbo.qos.protocol.QosProtocolWrapper.refer(QosProtocolWrapper.java:63)
at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.refer(ProtocolFilterWrapper.java:106)
at com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.refer(ProtocolListenerWrapper.java:65)
at com.alibaba.dubbo.rpc.Protocol$Adaptive.refer(Protocol$Adaptive.java)
at com.alibaba.dubbo.config.ReferenceConfig.createProxy(ReferenceConfig.java:394)
at com.alibaba.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:333)
at com.alibaba.dubbo.config.ReferenceConfig.get(ReferenceConfig.java:163)
at com.alibaba.dubbo.config.spring.ReferenceBean.getObject(ReferenceBean.java:66)
Environment
Steps to reproduce this issue
查看源码 ConditionRouter、ScriptRouter、TagRouter 的 compareTo 方法实现类似，会引发同类问题。
Pls. provide [GitHub address] to reproduce this issue.
Expected Result
What do you expected from the above steps？
Actual Result
What actually happens?
If there is an exception, please attach the exception trace: