dubbo：3.0.8
dubbo-serialization-kryo：1.0.0
在序列化拓展包中没有排除dubbo-common模块导致项目启动报错
<dependency>
    <groupId>org.apache.dubbo.extensions</groupId>
    <artifactId>dubbo-serialization-kryo</artifactId>
    <exclusions>
        <!-- 这里存在一个引包bug,引入的是3.0.6的dubbo-coomon包导致项目启动不起来 而我当前使用的dubbo版本是3.0.8 -->
        <exclusion>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-common</artifactId>
        </exclusion>
    </exclusions>
</dependency>

经过上面的方式排除依赖后，项目才正常启动。

还有一个疑问，我采取dubbo协议时，optimizer指定的类被加载了，但是换成tri协议却不加载请问这是什么原因？
  # 协议名称
  name: tri
  # 序列化配置
  serialization: kryo
  # 序列化对象配置实现
  optimizer: com.grain.pay.service.api.serialization.SerializationOptimizerImpl
break;
                }
            }
        }
        try {
            
            connectNum = Math.max(connectNum, 1);
            
            if (CollectionUtils.isEmpty(typedClients)) {
                typedClients = buildReferenceCountExchangeClientList(url, connectNum);
            } else {
                for (int i = 0; i < typedClients.size(); i++) {
                    ReferenceCountExchangeClient referenceCountExchangeClient = typedClients.get(i);
                    
                    if (referenceCountExchangeClient == null || referenceCountExchangeClient.isClosed()) {
                        typedClients.set(i, buildReferenceCountExchangeClient(url));
                        continue;
                    }
                    referenceCountExchangeClient.incrementAndGetCount();
                }
            }
        } finally {
            synchronized (referenceClientMap) {
                if (typedClients == null) {
                    referenceClientMap.remove(key);
                } else {
                    referenceClientMap.put(key, typedClients);
                }
                referenceClientMap.notifyAll();
            }