“NoSuchMethodErrors” due to multiple versions of io.netty:netty-all:jar

[Bing-ok]

Issue description

Hi, there are multiple versions of io.netty:netty-all in dubbo-samples-ssl/dubbo-samples-ssl-provider of version 1.0-SNAPSHOT. As shown in the following dependency tree, according to Maven "nearest wins" strategy, only io.netty:netty-all:4.1.36.Final can be loaded, io.netty:netty-all:4.1.25.Final will be shadowed.

However, several methods defined in shadowed version io.netty:netty-all:4.1.25.Final are referenced by client project via org.apache.dubbo:dubbo:2.7.7 but missing in the actually loaded version io.netty:netty-all:4.1.36.Final.

For instance, the following missing method(defined in io.netty:netty-all:4.1.25.Final) are actually referenced by dubbo-samples-ssl-provider, which will introduce a runtime error(i.e., "NoSuchMethodError") into dubbo-samples-ssl-provider.

1. <io.netty.channel.nio.NioEventLoopGroup: void (int,java.util.concurrent.ThreadFactory)> is invoked by dubbo-samples-ssl-provider via the following path:

path--
<org.apache.dubbo.samples.basic.SslBasicProvider: void main(java.lang.String[])> org.apache.dubbo:dubbo-samples-ssl-provider:1.0-SNAPSHOT;
<org.apache.dubbo.config.bootstrap.DubboBootstrap: org.apache.dubbo.config.bootstrap.DubboBootstrap start()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.bootstrap.DubboBootstrap: void exportMetadataService()> 
org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter: org.apache.dubbo.metadata.MetadataServiceExporter export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter: org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExport()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExportUrls()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExportUrlsFor1Protocol(org.apache.dubbo.config.ProtocolConfig,java.util.List)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.protocol.QosProtocolWrapper: org.apache.dubbo.rpc.Exporter export(org.apache.dubbo.rpc.Invoker)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.protocol.QosProtocolWrapper: void startQosServer(org.apache.dubbo.common.URL)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.server.Server: void start()> org.apache.dubbo:dubbo:2.7.7;
<io.netty.channel.nio.NioEventLoopGroup: void init (int,java.util.concurrent.ThreadFactory)>

2. <io.netty.channel.DelegatingChannelPromiseNotifier: io.netty.channel.ChannelFuture sync()> is invoked by dubbo-samples-ssl-provider via the following path:

path--
<org.apache.dubbo.samples.basic.SslBasicProvider: void main(java.lang.String[])> org.apache.dubbo:dubbo-samples-ssl-provider:1.0-SNAPSHOT;
<org.apache.dubbo.config.bootstrap.DubboBootstrap: org.apache.dubbo.config.bootstrap.DubboBootstrap start()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.bootstrap.DubboBootstrap: void exportMetadataService()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter: org.apache.dubbo.metadata.MetadataServiceExporter export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter: org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExport()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExportUrls()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExportUrlsFor1Protocol(org.apache.dubbo.config.ProtocolConfig,java.util.List)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.protocol.QosProtocolWrapper: org.apache.dubbo.rpc.Exporter export(org.apache.dubbo.rpc.Invoker)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.protocol.QosProtocolWrapper: void startQosServer(org.apache.dubbo.common.URL)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.server.Server: void start()> org.apache.dubbo:dubbo:2.7.7;
io.netty.channel.DelegatingChannelPromiseNotifier: io.netty.channel.ChannelFuture sync()

3. <io.netty.channel.VoidChannelPromise: io.netty.channel.ChannelFuture sync()> is invoked by dubbo-samples-ssl-provider via the following path:

path--
<org.apache.dubbo.samples.basic.SslBasicProvider: void main(java.lang.String[])> org.apache.dubbo:dubbo-samples-ssl-provider:1.0-SNAPSHOT;
<org.apache.dubbo.config.bootstrap.DubboBootstrap: org.apache.dubbo.config.bootstrap.DubboBootstrap start()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.bootstrap.DubboBootstrap: void exportMetadataService()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter: org.apache.dubbo.metadata.MetadataServiceExporter export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter: org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExport()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExportUrls()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExportUrlsFor1Protocol(org.apache.dubbo.config.ProtocolConfig,java.util.List)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.protocol.QosProtocolWrapper: org.apache.dubbo.rpc.Exporter export(org.apache.dubbo.rpc.Invoker)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.protocol.QosProtocolWrapper: void startQosServer(org.apache.dubbo.common.URL)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.server.Server: void start()> org.apache.dubbo:dubbo:2.7.7;
io.netty.channel.DelegatingChannelPromiseNotifier: io.netty.channel.ChannelFuture sync()

4. <io.netty.bootstrap.AbstractBootstrap: io.netty.channel.ChannelFuture bind(java.lang.String,int)> is invoked by dubbo-samples-ssl-provider via the following path:

path--
<org.apache.dubbo.samples.basic.SslBasicProvider: void main(java.lang.String[])> org.apache.dubbo:dubbo-samples-ssl-provider:1.0-SNAPSHOT;
<org.apache.dubbo.config.bootstrap.DubboBootstrap: org.apache.dubbo.config.bootstrap.DubboBootstrap start()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.bootstrap.DubboBootstrap: void exportMetadataService()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter: org.apache.dubbo.metadata.MetadataServiceExporter export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter: org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExport()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExportUrls()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExportUrlsFor1Protocol(org.apache.dubbo.config.ProtocolConfig,java.util.List)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.protocol.QosProtocolWrapper: org.apache.dubbo.rpc.Exporter export(org.apache.dubbo.rpc.Invoker)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.protocol.QosProtocolWrapper: void startQosServer(org.apache.dubbo.common.URL)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.server.Server: void start()> org.apache.dubbo:dubbo:2.7.7;
io.netty.channel.DelegatingChannelPromiseNotifier: io.netty.channel.ChannelFuture sync()

5. <io.netty.bootstrap.ServerBootstrap: io.netty.bootstrap.ServerBootstrap group(io.netty.channel.EventLoopGroup,io.netty.channel.EventLoopGroup)> is invoked by dubbo-samples-ssl-provider via the following path:

path--
<org.apache.dubbo.samples.basic.SslBasicProvider: void main(java.lang.String[])> org.apache.dubbo:dubbo-samples-ssl-provider:1.0-SNAPSHOT;
<org.apache.dubbo.config.bootstrap.DubboBootstrap: org.apache.dubbo.config.bootstrap.DubboBootstrap start()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.bootstrap.DubboBootstrap: void exportMetadataService()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter: org.apache.dubbo.metadata.MetadataServiceExporter export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter: org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExport()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExportUrls()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExportUrlsFor1Protocol(org.apache.dubbo.config.ProtocolConfig,java.util.List)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.protocol.QosProtocolWrapper: org.apache.dubbo.rpc.Exporter export(org.apache.dubbo.rpc.Invoker)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.protocol.QosProtocolWrapper: void startQosServer(org.apache.dubbo.common.URL)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.server.Server: void start()> org.apache.dubbo:dubbo:2.7.7;
<io.netty.bootstrap.ServerBootstrap: io.netty.bootstrap.ServerBootstrap group(io.netty.channel.EventLoopGroup,io.netty.channel.EventLoopGroup)>

6. <io.netty.bootstrap.ServerBootstrap: io.netty.bootstrap.ServerBootstrap childHandler(io.netty.channel.ChannelHandler)> is invoked by dubbo-samples-ssl-provider via the following path:

path--
<org.apache.dubbo.samples.basic.SslBasicProvider: void main(java.lang.String[])> org.apache.dubbo:dubbo-samples-ssl-provider:1.0-SNAPSHOT;
<org.apache.dubbo.config.bootstrap.DubboBootstrap: org.apache.dubbo.config.bootstrap.DubboBootstrap start()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.bootstrap.DubboBootstrap: void exportMetadataService()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter: org.apache.dubbo.metadata.MetadataServiceExporter export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter: org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExport()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExportUrls()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExportUrlsFor1Protocol(org.apache.dubbo.config.ProtocolConfig,java.util.List)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.protocol.QosProtocolWrapper: org.apache.dubbo.rpc.Exporter export(org.apache.dubbo.rpc.Invoker)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.protocol.QosProtocolWrapper: void startQosServer(org.apache.dubbo.common.URL)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.server.Server: void start()> org.apache.dubbo:dubbo:2.7.7;
<io.netty.bootstrap.ServerBootstrap: io.netty.bootstrap.ServerBootstrap childHandler(io.netty.channel.ChannelHandler)>

7. <io.netty.bootstrap.AbstractBootstrap: io.netty.channel.ChannelFuture bind(int)> is invoked by dubbo-samples-ssl-provider via the following path:

path--
<org.apache.dubbo.samples.basic.SslBasicProvider: void main(java.lang.String[])> org.apache.dubbo:dubbo-samples-ssl-provider:1.0-SNAPSHOT;
<org.apache.dubbo.config.bootstrap.DubboBootstrap: org.apache.dubbo.config.bootstrap.DubboBootstrap start()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.bootstrap.DubboBootstrap: void exportMetadataService()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter: org.apache.dubbo.metadata.MetadataServiceExporter export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter: org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void export()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExport()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExportUrls()> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.config.ServiceConfig: void doExportUrlsFor1Protocol(org.apache.dubbo.config.ProtocolConfig,java.util.List)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.protocol.QosProtocolWrapper: org.apache.dubbo.rpc.Exporter export(org.apache.dubbo.rpc.Invoker)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.protocol.QosProtocolWrapper: void startQosServer(org.apache.dubbo.common.URL)> org.apache.dubbo:dubbo:2.7.7;
<org.apache.dubbo.qos.server.Server: void start()> org.apache.dubbo:dubbo:2.7.7;
<io.netty.bootstrap.AbstractBootstrap: io.netty.channel.ChannelFuture bind(int)>

Suggested fixing solutions:

1. Change direct dependency io.netty:netty-all from 4.1.36.Final to 4.1.25.Final. Because version 4.1.25.Final includes the above missing methods and is compatible with other versions of io.netty:netty-all in the project.

Please let me know if this solution you agree to? I can submit a PR to fix it.

Thank you very much for your attention.
Best regards,

Dependency tree----

[INFO] |  |  |  \- commons-logging:commons-logging:jar:1.2:compile
[INFO] |  |  \- org.springframework:spring-expression:jar:4.3.16.RELEASE:compile
[INFO] |  |     \- (org.springframework:spring-core:jar:4.3.16.RELEASE:compile - omitted for duplicate)
[INFO] |  +- com.alibaba.spring:spring-context-support:jar:1.0.6:compile
[INFO] |  +- org.javassist:javassist:jar:3.20.0-GA:compile
[INFO] |  +- (io.netty:netty-all:jar:4.1.36.Final:compile - version managed from 4.1.25.Final; omitted for duplicate)
[INFO] |  +- com.google.code.gson:gson:jar:2.8.5:compile
[INFO] |  \- org.yaml:snakeyaml:jar:1.20:compile
[INFO] +- org.apache.dubbo:dubbo-dependencies-zookeeper:pom:2.7.7:compile
[INFO] |  +- org.apache.curator:curator-recipes:jar:4.0.1:compile
[INFO] |  |  \- org.apache.curator:curator-framework:jar:4.0.1:compile

[AlbumenJ]

Please check on the latest 3.2.x version. This should be fixed.