zrlw opened a new issue #8988:
URL: https://github.com/apache/dubbo/issues/8988
### Environment
* Dubbo version: 3.0 / master
```
[INFO] Running org.apache.dubbo.remoting.transport.netty.ThreadNameTest
main client sent
DubboClientHandler-thread-1 client connected
DubboServerHandler-localhost:23091-thread-1 server connected
DubboClientHandler-thread-1 client disconnected
DubboSharedHandler-thread-1 server disconnected 《== 执行服务端断开的线程并不是server
connected的线程
Error: Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed:
0.026 s <<< FAILURE! - in
org.apache.dubbo.remoting.transport.netty.ThreadNameTest
Error: testThreadName Time elapsed: 0.025 s <<< FAILURE!
org.opentest4j.AssertionFailedError:
at
org.apache.dubbo.remoting.transport.netty.ThreadNameTest.testThreadName(ThreadNameTest.java:84)
```
执行server disconnect的DubboSharedHandler-thread-1和执行server
connected的DubboServerHandler-localhost:23091-thread-1同时执行了success判断操作，但DubboSharedHandler-thread-1最后执行了matches匹配操作，因线程名并不是DubboServerHandler*而匹配失败，又将success标志从true改回了false。
1. 多个线程同时判success标志、然后对success进行修改的操作没有加锁互斥；
2. 执行server disconnect的线程名称是DubboSharedHandler-thread-nnn。
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