where is openproxy?

[mlh () zip com au]

The docs for webgoat mention that it is best used
with a proxy with which you can inspect and modify
the headers and recommends "openproxy" from the owasp
site.

However, I couldn't find openproxy.  A search comes
up with nothing.

Where is it?  Or is it called something else now?

(In the meantime, I'm using rdawes' exodus.  Bit rough
in the ui as the author admits but does the job.)

Matt