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The java implementation of Apache Dubbo. An RPC and microservice framework.
https://dubbo.apache.org/
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[Bug] ConfigurableMetadataServiceExporter.export cause IndexOutOfBoundsException #14646

Open ilaotan opened 2 months ago

ilaotan commented 2 months ago

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Apache Dubbo Component

Java SDK (apache/dubbo)

Dubbo Version

3.2.15

Steps to reproduce this issue

When dubbo.provider.export=false is set, the project will report an error when starting up, but it does not affect the project running.

2024-09-09 10:42:10,455 [ERROR] [main] [] [] [] [] org.apache.dubbo.config.deploy.DefaultApplicationDeployer [? : ?]  [DUBBO] Dubbo Application[1.1](xxxxxxx) an exception occurred when handle starting event, dubbo version: 3.2.15, current host: 172.32.5.183, error code: 5-14. This may be caused by , go to https://dubbo.apache.org/faq/5/14 to find instructions. 
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
    at java.util.ArrayList.rangeCheck(ArrayList.java:659)
    at java.util.ArrayList.get(ArrayList.java:435)
    at org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter.export(ConfigurableMetadataServiceExporter.java:78)
    at org.apache.dubbo.config.metadata.ExporterDeployListener.onModuleStarted(ExporterDeployListener.java:85)
    at org.apache.dubbo.config.deploy.DefaultApplicationDeployer.exportMetadataService(DefaultApplicationDeployer.java:1266)
    at org.apache.dubbo.config.deploy.DefaultApplicationDeployer.prepareApplicationInstance(DefaultApplicationDeployer.java:767)
    at org.apache.dubbo.config.deploy.DefaultApplicationDeployer.checkState(DefaultApplicationDeployer.java:1152)
    at org.apache.dubbo.config.deploy.DefaultApplicationDeployer.notifyModuleChanged(DefaultApplicationDeployer.java:1140)
    at org.apache.dubbo.config.deploy.DefaultModuleDeployer.onModuleStarted(DefaultModuleDeployer.java:363)
    at org.apache.dubbo.config.deploy.DefaultModuleDeployer.startSync(DefaultModuleDeployer.java:188)
    at org.apache.dubbo.config.deploy.DefaultModuleDeployer.start(DefaultModuleDeployer.java:156)
    at org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onContextRefreshedEvent(DubboDeployApplicationListener.java:157)
    at org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onApplicationEvent(DubboDeployApplicationListener.java:143)
    at org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onApplicationEvent(DubboDeployApplicationListener.java:52)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:178)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:171)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:145)
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:429)
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:386)
    at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:949)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:594)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:732)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:409)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:308)
    at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:164)

What you expected to happen

If "dubbo.provider.export=false", then this "ExporterDeployListener.onModuleStarted" should not be called, right?

Anything else

the project params:

dubbo.protocol.name=dubbo dubbo.protocol.serialization=hessian2 dubbo.protocol.port=27001 dubbo.protocol.threads=220

dubbo.application.name=xxxx-dubbo-server-${spring.application.name} dubbo.application.register-mode=instance dubbo.application.metadata-service-protocol=dubbo dubbo.application.protocol=dubbo

dubbo.provider.export=false dubbo.provider.token=true

dubbo.registry.protocol=zookeeper dubbo.registry.address=${zookeeper.address} dubbo.registry.file=/root/.dubbo/${spring.application.name} dubbo.registry.use-as-config-center=true dubbo.registry.use-as-metadata-center=true

Are you willing to submit a pull request to fix on your own?

Code of Conduct

heliang666s commented 2 months ago

You can use Dubbo 3.3, which already solves this problem