variants << new VariantMetadataSpec(variant, attributes)
    }

    void variant(String name, @DelegatesTo(value = VariantMetadataSpec, strategy = Closure.DELEGATE_FIRST) Closure<?> spec) {
        def variant = variants.find { it.name == name }
        if (variant == null) {
            variant = new VariantMetadataSpec(name)
            variants << variant
        }

    private boolean gradleMetadataRedirect = false
    private final List<VariantMetadataSpec> variants = [new VariantMetadataSpec("api", [(Usage.USAGE_ATTRIBUTE.name): Usage.JAVA_API, (LibraryElements.LIBRARY_ELEMENTS_ATTRIBUTE.name): LibraryElements.JAR, (Category.CATEGORY_ATTRIBUTE.name): Category.LIBRARY]),

    private final List<VariantMetadataSpec> variants = [new VariantMetadataSpec("api", [(Usage.USAGE_ATTRIBUTE.name): Usage.JAVA_API, (LibraryElements.LIBRARY_ELEMENTS_ATTRIBUTE.name): LibraryElements.JAR, (Category.CATEGORY_ATTRIBUTE.name): Category.LIBRARY]),