class SingleGroupAddressHolder extends AddressHolder {

    @Override
    public void removeProvider(ProviderGroup providerGroup) {
        if (ProviderHelper.isEmpty(providerGroup)) {
            return;
        }
        wLock.lock();
        try {
            getProviderGroup(providerGroup.getName()).removeAll(providerGroup.getProviderInfos());
        } finally {
            wLock.unlock();
        }
    }

    protected  SingleGroupAddressHolder(ConsumerBootstrap consumerBootstrap);

}