import org.apache.http.auth.Credentials;
import org.apache.http.auth.MalformedChallengeException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.message.BasicNameValuePair;
import org.apache.logging.log4j.LogManager;

import assertk.assertions.startsWith
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import org.apache.hc.client5.http.classic.methods.HttpGet
import org.apache.hc.client5.http.impl.classic.HttpClients
import org.apache.hc.core5.http.io.entity.EntityUtils
import org.junit.jupiter.api.AfterEach
import org.junit.jupiter.api.Test

/**
 * Apache HttpClient 5.x.

        final HttpGet httpGet = new HttpGet(robotTxtUrl);

        // request header
        for (final Header header : requestHeaderList) {
            httpGet.addHeader(header);
        }

        HttpEntity httpEntity = null;
        try {
            // get a content
            final HttpResponse response = executeHttpClient(httpGet);
            httpEntity = response.getEntity();