public ClientImpl(ClientBuilder clientBuilder)
{
// Copy the builder so external modifications won't affect this client impl.
this.builder = clientBuilder.Copy();
this.kvClient = null;
this.authClient = null;
this.maintenanceClient = null;
this.clusterClient = null;
this.leaseClient = null;
this.watchClient = null;
this.lockClient = null;
this.connectionManager = new ClientConnectionManager(this.builder);
}