Btukfyl

I've been exploring for a way to change the TLS version when using Apache HttpClient, and looking at many examples provided, the version that's used is always TLSv1.2 instead of TLSv1.1.

 //Set the https use TLSv1.1

private static Registry<ConnectionSocketFactory> getRegistry() throws KeyManagementException, NoSuchAlgorithmException {

    SSLContext sslContext = SSLContexts.custom().build();

    SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(sslContext,

            new String{"TLSv1.1"}, null, SSLConnectionSocketFactory.getDefaultHostnameVerifier());

    return RegistryBuilder.<ConnectionSocketFactory>create()

            .register("http", PlainConnectionSocketFactory.getSocketFactory())

            .register("https", sslConnectionSocketFactory)

            .build();

}



public static void main(String... args) {

    try {

        //Set the https use TLSv1.1

        PoolingHttpClientConnectionManager clientConnectionManager = new PoolingHttpClientConnectionManager(getRegistry());

        clientConnectionManager.setMaxTotal(100);

        clientConnectionManager.setDefaultMaxPerRoute(20);

        HttpClient client = HttpClients.custom().setConnectionManager(clientConnectionManager).build();

    } catch (KeyManagementException | NoSuchAlgorithmException e) {

        e.printStackTrace();

    }

}

However after testing, my TLS version is still TLSv1.2 (TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384) when it sent the request instead of TLSv1.1.

Thanks.