xxxx.azurewebsites.net, 3-feb-2016, trustedCertEntry,
Certificate fingerprint (SHA1):   64:43:73:30:97:B0:DE:9D:FB:7A:79:51:9D:D7:07:73:40:6E:F1:6B

public static void main(String[] args) throws Exception {

    HandshakeTest test = new HandshakeTest();

    test.connect();
}

private void connect() throws Exception {

    System.out.println("Starting to connect");

    boolean persistent = false;
    String username = "xx";
    String password = "xx";
    String bootstrapToken = "xx";

    Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("lovely.com", 8080));

    try {

        URL url = new URL("https://xxxx.azurewebsites.net/api/xxx/v1/login");

        HttpsURLConnection conn = (HttpsURLConnection) url.openConnection(proxy);

        conn.setSSLSocketFactory(getFactory());

        String encoded = new String(Base64.encodeBase64(new String("ohlala:wow").getBytes()));
        conn.setRequestProperty("Proxy-Authorization", "Basic " + encoded);

        conn.setDoOutput(true);
        conn.setRequestMethod("PUT");
        conn.setRequestProperty("Content-Type", "application/json");

        String input = String.format(
                "{"authorizationToken":"%s","persistent": %b, "username":"%s" ,"password":"%s"}",
                bootstrapToken, persistent, username, password);

        OutputStream os = conn.getOutputStream();
        os.write(input.getBytes());
        os.flush();

        if (conn.getResponseCode() != HttpURLConnection.HTTP_NO_CONTENT) {
            throw new RuntimeException("Failed : HTTP error code : " + conn.getResponseCode());
        }

        BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));

        String output;
        System.out.println("Output from Server .... n");
        while ((output = br.readLine()) != null) {
            System.out.println(output);
        }

        conn.disconnect();

        System.out.println("Post Token went well");

    } catch (MalformedURLException e) {

        System.out.println("postToken() error " + e);

        e.printStackTrace();

    } catch (IOException e) {

        System.out.println("postToken() error ");
        e.printStackTrace();

    }

}

private SSLSocketFactory getFactory() throws Exception {

    // the KEY
    KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance("SunX509");

    InputStream keyInput = getClass().getResourceAsStream("/xxxxapi.p12");

    KeyStore keyStore = KeyStore.getInstance("PKCS12");
    keyStore.load(keyInput, "xxxx".toCharArray());
    keyInput.close();

    keyManagerFactory.init(keyStore, "xxxx".toCharArray());
    KeyManager[] kms = keyManagerFactory.getKeyManagers();

    SSLContext context = SSLContext.getInstance("TLS");
    context.init(keyManagerFactory.getKeyManagers(), null, new SecureRandom());

    //
    KeyStore trustStore = KeyStore.getInstance("JKS");

    InputStream storeInput = getClass().getResourceAsStream("/cacerts");

    trustStore.load(storeInput, "changeit".toCharArray());

    TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
    tmf.init(trustStore);
    TrustManager[] tms = tmf.getTrustManagers();

    SSLContext sslContext = null;
    sslContext = SSLContext.getInstance("TLS");
    sslContext.init(kms, tms, new SecureRandom());

    return context.getSocketFactory();
}

javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.ssl.Alerts.getSSLException(Unknown Source)
at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
at sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source)
at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
at sun.security.ssl.Handshaker.processLoop(Unknown Source)
at sun.security.ssl.Handshaker.process_record(Unknown Source)
at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(Unknown Source)
at com.nuon.cs.is.nuonxx.security.filter.HandshakeTest.connect(HandshakeTest.java:65)
at com.nuon.cs.is.nuonxx.security.filter.HandshakeTest.main(HandshakeTest.java:32)

Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
at sun.security.validator.Validator.validate(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
... 15 more

Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
at java.security.cert.CertPathBuilder.build(Unknown Source)
... 21 more