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！！！
return isDestroy;
    }
    @Override
    public void register(URL url) {
        metadataInfo.addService(url);
    }
    @Override
    public void unregister(URL url) {
        metadataInfo.removeService(url);
    }
    @Override
    public void subscribe(URL url, NotifyListener listener) {
        metadataInfo.addSubscribedURL(url);
    }
    @Override
    public void unsubscribe(URL url, NotifyListener listener) {
        metadataInfo.removeSubscribedURL(url);
    }
    @Override
    public List<URL> lookup(URL url) {
        throw new UnsupportedOperationException("Service discovery implementation does not support lookup of url list.");
    }
    /**
     * Update Service Instance. Unregister and then register by default.
     * Can be override if registry support update instance directly.
     * <br/>
     * NOTICE: Remind to update {@link AbstractServiceDiscovery#serviceInstance}'s reference if updated
     *         and report metadata by {@link AbstractServiceDiscovery#reportMetadata(MetadataInfo)}
     *
     * @param oldServiceInstance origin service instance