Ignore self-signed ssl cert using Jersey Client

For Jersey 2.* (Tested on 2.7) and java 8:

import java.security.cert.CertificateException; 
import java.security.cert.X509Certificate; 
import javax.net.ssl.SSLContext; 
import javax.net.ssl.TrustManager; 
import javax.net.ssl.X509TrustManager; 

public static Client ignoreSSLClient() throws Exception {

    SSLContext sslcontext = SSLContext.getInstance("TLS");

    sslcontext.init(null, new TrustManager[]{new X509TrustManager() {
        public void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {}
        public void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {}
        public X509Certificate[] getAcceptedIssuers() { return new X509Certificate[0]; }
    }}, new java.security.SecureRandom());

    return ClientBuilder.newBuilder()
                        .sslContext(sslcontext)
                        .hostnameVerifier((s1, s2) -> true)
                        .build();
}

After some searching and trawling through some old stackoverflow questions I've found a solution in a previously asked SO question:

  • Question: Java client certificates over HTTPS/SSL
  • Answer Java client certificates over HTTPS/SSL

Here's the code that I ended up using.

// Create a trust manager that does not validate certificate chains
TrustManager[] trustAllCerts = new TrustManager[]{new X509TrustManager(){
    public X509Certificate[] getAcceptedIssuers(){return null;}
    public void checkClientTrusted(X509Certificate[] certs, String authType){}
    public void checkServerTrusted(X509Certificate[] certs, String authType){}
}};

// Install the all-trusting trust manager
try {
    SSLContext sc = SSLContext.getInstance("TLS");
    sc.init(null, trustAllCerts, new SecureRandom());
    HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
} catch (Exception e) {
    ;
}