dubbox 中kryo序列化 KryoException: Encountered unregistered class ID: 114

两个dubbo互相调用，然后报了KryoException: Encountered unregistered class ID: 114错误

问题由于两个dubbo的SerializationOptimizer分别注册了bean，而dubbo又去使用map去存储bean class，key为数字顺序，value为bean的路径class，所以导致上午不能找到bean的错误，解决方法是在每个服务的SerializationOptimizer使用相同数量的集合

public class SerializationOptimizerImpl implements SerializationOptimizer{


@Override
public Collection<Class> getSerializableClasses() {
List<Class> classes = new LinkedList<Class>();
classes.add(a.class);
        return classes;
}

变为

public class SerializationOptimizerImpl implements SerializationOptimizer{


@Override
public Collection<Class> getSerializableClasses() {
List<Class> classes = new LinkedList<Class>();
classes.add(a.class);

classes.add(b.class);

        return classes;
}