这是依赖库的版本信息
<curator.recipes.version>4.2.0</curator.recipes.version>
<zookeeper.version>3.4.10</zookeeper.version>
[dubbo-.3.1.6.txt](https://github.com/apache/dubbo/files/11177448/dubbo-.3.1.6.txt)
有没有大佬帮忙看下什么问题导致，万分感谢！！！
* @param newServiceInstance new service instance
     */
    protected void doUpdate(ServiceInstance oldServiceInstance, ServiceInstance newServiceInstance) {
        this.doUnregister(oldServiceInstance);
        this.serviceInstance = newServiceInstance;
        if (!EMPTY_REVISION.equals(getExportedServicesRevision(newServiceInstance))) {
            reportMetadata(newServiceInstance.getServiceMetadata());
            this.doRegister(newServiceInstance);
        }
    }
    @Override
    public URL getUrl() {
        return registryURL;
    }
    protected abstract void doRegister(ServiceInstance serviceInstance) throws RuntimeException;
    protected abstract void doUnregister(ServiceInstance serviceInstance);
    protected abstract void doDestroy() throws Exception;
    protected ServiceInstance createServiceInstance(MetadataInfo metadataInfo) {
        DefaultServiceInstance instance = new DefaultServiceInstance(serviceName, applicationModel);
        instance.setServiceMetadata(metadataInfo);
        setMetadataStorageType(instance, metadataType);
        ServiceInstanceMetadataUtils.customizeInstance(instance, applicationModel);
        return instance;
    }
    protected boolean calOrUpdateInstanceRevision(ServiceInstance instance) {
        String existingInstanceRevision = getExportedServicesRevision(instance);
        MetadataInfo metadataInfo = instance.getServiceMetadata();
        String newRevision = metadataInfo.calAndGetRevision();
        if (!newRevision.equals(existingInstanceRevision)) {
            instance.getMetadata().put(EXPORTED_SERVICES_REVISION_PROPERTY_NAME, metadataInfo.getRevision());