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
private List<ReferenceCountExchangeClient> getSharedClient(URL url, int connectNum) {
        String key = url.getAddress();
        Object clients = referenceClientMap.get(key);
        if (clients instanceof List) {
            List<ReferenceCountExchangeClient> typedClients = (List<ReferenceCountExchangeClient>) clients;
            if (checkClientCanUse(typedClients)) {
                batchClientRefIncr(typedClients);
                return typedClients;
            }
        }
        List<ReferenceCountExchangeClient> typedClients = null;
        synchronized (referenceClientMap) {
            for (; ; ) {
                clients = referenceClientMap.get(key);
                if (clients instanceof List) {
                    typedClients = (List<ReferenceCountExchangeClient>) clients;
                    if (checkClientCanUse(typedClients)) {
                        batchClientRefIncr(typedClients);
                        return typedClients;
                    } else {
                        referenceClientMap.put(key, PENDING_OBJECT);
                        break;
                    }
                } else if (clients == PENDING_OBJECT) {
                    try {
                        referenceClientMap.wait();
                    } catch (InterruptedException ignored) {
                    }
                } else {
                    referenceClientMap.put(key, PENDING_OBJECT);