How can I configure HTTPClient to authenticate against a SOCKS proxy?

Question

I need to set up proxy authentication against a SOCKS proxy. I found out this post giving instructions that appear to work with common HTTP proxies.

Answer 1

The Features page of Apache HTTPClient says:

Transparent connections through SOCKS proxies (version 4 & 5) using native Java socket support.

With "transparent", I guess they mean that it works without you needing to do anything special. Do you have a SOCKS proxy available somewhere? Can't you just try it out to see if it works?