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import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.transport.InetSocketTransportAddress;

public class Test {

    public static void main(String[] args) {
        TransportClient client = new TransportClient();
        System.out.println(System.currentTimeMillis() + " BEFORE ");
        client.addTransportAddress(new InetSocketTransportAddress("localhost", 9300));
        System.out.println(System.currentTimeMillis() + " AFTER: " + client.connectedNodes().size());
    }
}