How test the soapBluster library? about coapblaster HOT 2 CLOSED

Hello coap!
Got response: <CONTENT IN ACK MID:53455 TOK:3888 2.05 RADDR:"/134.102.218.18:5683" OPTS:[ETag:2c6c6e79aaadc775, Content-Format:text/plain;charset=utf-8] TEXT:"welcome to the ETSI plugtest! last change: 2019-0...">

import com.google.iot.coap.LocalEndpointManager;
import com.google.iot.coap.Client;
import com.google.iot.coap.Transaction;
import com.google.iot.coap.Message;

public class Main
{
    public static void main(String[] args)
    {
        System.out.println("Hello coap!");
        LocalEndpointManager manager = new LocalEndpointManager();
        Client client = new Client(manager, "coap://coap.me/test");
        Transaction transaction = client.newRequestBuilder().send();
        try
        {
            Message response = transaction.getResponse();
            System.out.println("Got response: " + response);
        }
        catch(Exception exception)
        {
            System.out.println("Exception: " + exception);
        }
    }
}