branch : master , version : 2.7.0-SNAPSHOT
ServiceConfig#doExportUrlsFor1Protocol , line 482

<img width="890" alt="image" src="https://user-images.githubusercontent.com/6971152/41273922-035827c2-6e4e-11e8-8a72-71562d138cf9.png">

The type of Constant.SCOPE_Xxx is String already , no need to call toString() again
return urls;
    }
    /**
     * @deprecated Replace to getProtocols()
     */
    @Deprecated
    public List<ProviderConfig> getProviders() {
        return convertProtocolToProvider(protocols);
    }
    /**
     * @deprecated Replace to setProtocols()
     */
    @Deprecated
    public void setProviders(List<ProviderConfig> providers) {
        this.protocols = convertProviderToProtocol(providers);
    }
    @Parameter(excluded = true)
    public String getUniqueServiceName() {
        StringBuilder buf = new StringBuilder();
        if (group != null && group.length() > 0) {
            buf.append(group).append("/");
        }
        buf.append(interfaceName);
        if (version != null && version.length() > 0) {
            buf.append(":").append(version);
        }
        return buf.toString();
    }
}