Apache HttpClient 4.3 and x509 client certificate to authenticate

Question

now I looking for solution regarding task how to rewrite deprecated solution for client side x509 certificate authentication via HttpComponentsMessageSender (not relevant).<

Answer 1

Below is the code for HttpClient 4.4+ (updated @Daniyar code for 4.4+)

import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.DefaultHostnameVerifier;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.TrustSelfSignedStrategy;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.ssl.SSLContexts;

public static CloseableHttpClient createApacheHttp4ClientWithClientCertAuth() {
    try {
        SSLContext sslContext = SSLContexts
                .custom()
                .loadTrustMaterial(null, new TrustSelfSignedStrategy())
                .build();

        SSLConnectionSocketFactory sslConnectionFactory = new SSLConnectionSocketFactory(sslContext,
                new DefaultHostnameVerifier());

        Registry registry = RegistryBuilder. create()
                .register("https", sslConnectionFactory)
                .register("http", new PlainConnectionSocketFactory())
                .build();

        HttpClientBuilder builder = HttpClientBuilder.create();
        builder.setSSLSocketFactory(sslConnectionFactory);
        builder.setConnectionManager(new PoolingHttpClientConnectionManager(registry));

        return builder.build();
    } catch (Exception ex) {

        return null;
    }
}