See which is an improvement in PAC;
This SAL issue is the same improvement for SAL.
See code review CR-SAL-98 - it looks quite simple, doesn't it ?
Other source: take example on com.atlassian.confluence.util.http.httpclient.HttpClientProxyConfiguration
Joseph Clark said:
"if you're doing this for a customer, the other thing you should be clear on is that HttpClient has limited support for NTLM
HttpClient doesn't support the most recent versions of NTLM
it only works with older versions
so, depending on the expectations you may have set with the customer, you should be clear on that."