return builder.withSummary(message)
                .withAdvice(advice)
                .withUserManual("upgrading_version_7", "unique_attribute_sets")
                .build();
        }
    }

    /**
     * The identity of a variant -- its attributes and capabilities.
     */
    private static class VariantIdentity {

            "Run the 'outgoingVariants' task for more details. ${documentationRegistry.getDocumentationRecommendationFor("information", "upgrading_version_7", "unique_attribute_sets")}")

        where:
        capability << ['default', 'org.test:sample:1.0']
    }

    def "matching attribute combinations and capability #capability triggers a warning in outgoingVariants report"() {

If a project has multiple consumable configurations that share the same attributes and capabilities declaration, the build will fail when publishing or resolving as a dependency that project.
This was <<#unique_attribute_sets,previously deprecated>>.

The <<variant_model.adoc#outgoing_variants_report,`outgoingVariants` report>> will warn about this for impacted configurations.

==== Toolchain-based tasks for JVM projects