*
 * When used as a rule, the proxy is stopped automatically at the end of the test,
 * but it is _not_ automatically started.
 *
 * To use the proxy with a build, you must call configureProxy(GradleExecuter) before
 * starting the proxy.
 *
 * Use {@link #start(SocksServer)} to start the proxy with an alternate implementation of {@link SocksServer} (for instance,

            return "HTTP proxy: $port"
        }
        return "HTTP proxy (not started)"
    }

    void stop() {
        proxyServer?.stop()
        portFinder.releasePort(port)
    }

    void configureProxy(GradleExecuter executer, String proxyScheme, String userName = null, String password = null) {
        configureProxyHost(executer, proxyScheme)

        if (userName) {