"This is scheduled to be removed in Gradle 9.0. Use a different name for the configuration '$name'. " +
            "Consult the upgrading guide for further information: ${BASE_URL}/userguide/upgrading_version_8.html#reserved_configuration_names")

        when:
        succeeds "help"

        then:
        verifyAll(receivedProblem(0)) {

                    .withAdvice(String.format("Use a different name for the configuration '%s'.", name))
                    .willBeRemovedInGradle9()
                    .withUpgradeGuideSection(8, "reserved_configuration_names")
                    .nagUser();
        }
    }

    // Cannot be private due to reflective instantiation

The ability to change the allowed usage of a configuration after creation will be removed in Gradle 9.0.

[[reserved_configuration_names]]
==== Reserved configuration names

Configuration names "detachedConfiguration" and "detachedConfigurationX" (where X is any integer) are reserved for internal use when creating detached configurations.