in httpclient5/src/main/java/org/apache/hc/client5/http/ssl/ClientTlsStrategyBuilder.java [208:239]
private DefaultClientTlsStrategy buildImpl() {
final SSLContext sslContextCopy;
if (sslContext != null) {
sslContextCopy = sslContext;
} else {
sslContextCopy = systemProperties ? SSLContexts.createSystemDefault() : SSLContexts.createDefault();
}
final String[] tlsVersionsCopy;
if (tlsVersions != null) {
tlsVersionsCopy = tlsVersions;
} else {
tlsVersionsCopy = systemProperties ? HttpsSupport.getSystemProtocols() : null;
}
final String[] ciphersCopy;
if (ciphers != null) {
ciphersCopy = ciphers;
} else {
ciphersCopy = systemProperties ? HttpsSupport.getSystemCipherSuits() : null;
}
final HostnameVerificationPolicy hostnameVerificationPolicyCopy = hostnameVerificationPolicy != null ? hostnameVerificationPolicy :
(hostnameVerifier == null ? HostnameVerificationPolicy.BUILTIN : HostnameVerificationPolicy.BOTH);
final HostnameVerifier hostnameVerifierCopy = hostnameVerifier != null ? hostnameVerifier :
(hostnameVerificationPolicyCopy == HostnameVerificationPolicy.CLIENT || hostnameVerificationPolicyCopy == HostnameVerificationPolicy.BOTH ?
HttpsSupport.getDefaultHostnameVerifier() : NoopHostnameVerifier.INSTANCE);
return new DefaultClientTlsStrategy(
sslContextCopy,
tlsVersionsCopy,
ciphersCopy,
sslBufferMode != null ? sslBufferMode : SSLBufferMode.STATIC,
hostnameVerificationPolicyCopy,
hostnameVerifierCopy);
}