public static SSLConnectionSocketFactory getSocketFactory() throws SSLInitializationException {
        return new SSLConnectionSocketFactory(SSLContexts.createDefault(), HttpsSupport.getDefaultHostnameVerifier());
    }
Obtains default SSL socket factory with an SSL context based on the standard JSSE
trust material ({@code cacerts} file in the security properties directory).
System properties are not taken into consideration.

@return default SSL socket factory
httpclient5/src/main/java/org/apache/hc/client5/http/ssl/SSLConnectionSocketFactory.java