Apache HttpClientBuilder produces ClassNotFoundException: org.apache.http.config.Lookup

Question

I'm using HttpClient and and I use httpCore.jar and still I'm facing an exception

java.lang.ClassNotFoundException: org.apache.http.config.Lookup Error

around

HttpClient client = HttpClientBuilder.create().build();

My full code is following

package com.rest;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.HttpClientBuilder;

public class Test33 {

    /**
     * @param args
     * @throws IOException 
     * @throws ClientProtocolException 
     */
    public static void main(String[] args) throws ClientProtocolException, IOException {
        String url = "http://www.google.com/search?q=httpClient";

        HttpClient client = HttpClientBuilder.create().build();
        HttpGet request = new HttpGet(url);


        HttpResponse response = client.execute(request);

        System.out.println("Response Code : "
                        + response.getStatusLine().getStatusCode());

        BufferedReader rd = new BufferedReader(
            new InputStreamReader(response.getEntity().getContent()));

        StringBuffer result = new StringBuffer();
        String line = "";
        while ((line = rd.readLine()) != null) {
            result.append(line);
        }
    }
}

dvsakgec · Accepted Answer · 2017-03-21 11:44:11Z

3

The class is available in httpcore 4.4.4.jar, Please check the version of jar and I tried your code and it doesn't throw any class not found exception. If jar is there then please make sure that jar is added to application classpath.

answered Mar 21, 2017 at 11:44

dvsakgec

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