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[Bug] bin/pulsar-client NoClassDefFoundError: io/netty/incubator/channel/uring/IOUringEventLoopGroup

See original GitHub issue

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I searched in the issues and found nothing similar.

Version

I built bin/pulsar-client using a recent version of master. Here is the commit sha 080213bdf7a00dda8f8e7c5927d83d7e6a9c5c6a.

Minimal reproduce step

Build the pulsar project’s master branch using mvn -Pcore-modules,-main -T 1C clean install -DskipTests -Dspotbugs.skip=true. I was at 080213bdf7a00dda8f8e7c5927d83d7e6a9c5c6a. I used:

$ java -version
openjdk version "17.0.4.1" 2022-08-12
OpenJDK Runtime Environment Temurin-17.0.4.1+1 (build 17.0.4.1+1)
OpenJDK 64-Bit Server VM Temurin-17.0.4.1+1 (build 17.0.4.1+1, mixed mode, sharing)

$ bin/pulsar-client produce -m test test
2022-11-17T22:30:47,216-0600 [main] INFO  org.apache.pulsar.client.cli.PulsarClientTool - 0 messages successfully produced
Exception in thread "main" java.lang.NoClassDefFoundError: io/netty/incubator/channel/uring/IOUringEventLoopGroup
        at org.apache.pulsar.common.util.netty.EventLoopUtil.getClientSocketChannelClass(EventLoopUtil.java:106)
        at org.apache.pulsar.client.impl.ConnectionPool.<init>(ConnectionPool.java:111)
        at org.apache.pulsar.client.impl.ConnectionPool.<init>(ConnectionPool.java:95)
        at org.apache.pulsar.client.impl.ConnectionPool.<init>(ConnectionPool.java:90)
        at org.apache.pulsar.client.impl.PulsarClientImpl.<init>(PulsarClientImpl.java:197)
        at org.apache.pulsar.client.impl.PulsarClientImpl.<init>(PulsarClientImpl.java:153)
        at org.apache.pulsar.client.impl.ClientBuilderImpl.build(ClientBuilderImpl.java:63)
        at org.apache.pulsar.client.cli.CmdProduce.publish(CmdProduce.java:247)
        at org.apache.pulsar.client.cli.CmdProduce.run(CmdProduce.java:239)
        at org.apache.pulsar.client.cli.PulsarClientTool.run(PulsarClientTool.java:231)
        at org.apache.pulsar.client.cli.PulsarClientTool.main(PulsarClientTool.java:271)
Caused by: java.lang.ClassNotFoundException: io.netty.incubator.channel.uring.IOUringEventLoopGroup
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
        ... 11 more