<setproxy> fails to provide password authentication on some JDKs.
The patch provided in the bug report looked very similar to something
I once had to do in production code, when Ant's original code wasn't
enough. I forgot about it when we switched to commons-httpclient
shortly thereafter.
PR: 32667
git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@277255 13f79535-47bb-0310-9956-ffa450edef68