String protocol = getRequestingURL().getProtocol();
                String proxyUser = systemProperties.get(protocol + ".proxyUser");
                if (proxyUser != null) {
                    String proxyPassword = systemProperties.get(protocol + ".proxyPassword");
                    if (proxyPassword == null) {

		"proxied https with auth (invalid hostname + InsecureSkipVerify) -> http": {
			serverFunc:             httptest.NewServer,
			proxyServerFunc:        httpsServerInvalidHostname(t),
			proxyAuth:              url.UserPassword("proxyuser", "proxypasswd"),
			clientTLS:              &tls.Config{InsecureSkipVerify: true},
			serverConnectionHeader: "Upgrade",
			serverUpgradeHeader:    "SPDY/3.1",
			serverStatusCode:       http.StatusSwitchingProtocols,

        file("gradle.properties") << """
    systemProp.http.proxyHost=localhost
    systemProp.http.proxyPort=${proxyServer.port}
    systemProp.http.nonProxyHosts=
    systemProp.http.proxyUser=my_user
    systemProp.http.proxyPassword=my_password
"""
        when:
        def result = wrapperExecuter.withTasks('hello').run()

        then:
        assertThat(result.output, containsString('hello'))

* `https.proxyHost`
* `https.proxyPort`
* `https.proxyUser`
* `https.proxyPassword`
* `http.nonProxyHosts` (NOTE: this is not a typo.)

If the `org.gradle.s3.endpoint` property has been specified with a HTTP (not HTTPS) URI the following system proxy settings can be used:

* `http.proxyHost`
* `http.proxyPort`
* `http.proxyUser`
* `http.proxyPassword`
* `http.nonProxyHosts`