given:
        server.withBasicAuthentication("username", "password")
        file("gradle.properties") << """
            systemProp.gradle.wrapperUser=username
            systemProp.gradle.wrapperPassword=password
        """.stripIndent()
        server.expect(server.get("/custom-dist.zip").sendFile(distribution.binDistribution))

        and:

        given:
        file("gradle.properties") << '''
            systemProp.gradle.wrapperUser=jdoe
            systemProp.gradle.wrapperPassword=changeit
        '''.stripIndent()

        and:
        server.withBasicAuthentication("jdoe", "changeit")
        server.expect(server.head("/$TEST_DISTRIBUTION_URL"))

            }
        }
    }

    private String calculateUserInfo(URI uri) {
        String username = systemProperties.get("gradle.wrapperUser");
        String password = systemProperties.get("gradle.wrapperPassword");
        if (username != null && password != null) {
            return username + ':' + password;
        }
        return uri.getUserInfo();
    }

    private String calculateUserAgent() {

systemProp.gradle.wrapperUser=myuser
systemProp.gradle.wrapperPassword=mypassword
----

=== System properties reference

For a quick reference, the following are _common_ system properties:

`gradle.wrapperUser=(myuser)`:: Specify username to download Gradle distributions <<gradle_wrapper.adoc#sec:authenticated_download,from servers using HTTP Basic Authentication>>.

To specify the HTTP Basic Authentication credentials, add the following lines to the system properties file:

[source,properties]
----
systemProp.gradle.wrapperUser=username
systemProp.gradle.wrapperPassword=password
----

Embedding credentials in the `distributionUrl` in the `gradle/wrapper/gradle-wrapper.properties` file also works.
Please note that this file is to be committed into your source control system.