The only attribute distinguishing these variants is 'extra'. Add this attribute to the consumer's configuration to resolve the ambiguity:
  - Value: 'extra 2' selects variant: 'bar'
  - Value: 'extra' selects variant: 'foo'"""
    }

    /**

        outputContains("variants = [{artifactType=thing}, {artifactType=thing}, {artifactType=out}, {artifactType=out}, {artifactType=jar, org.gradle.status=release}]")

        if (findingExternalVariants) {
            // There is a cycle in the external variants
            LOGGER.warn("Detecting cycle in external variants for :\n" + computePathToRoot());
            findingExternalVariants = false;
            return null;
        }
        findingExternalVariants = true;
        // An external variant must have exactly one outgoing edge

  // TensorFlow operations that doesn't have operands and results of type
  // variant are legal. Here, we don't distinguish between variants encoding
  // TensorList or some other type as that information is not available here.
  // Partial legalization is used below to still allow ops with variant types
  // still.
  auto is_legal = [](Operation *op) {
    auto is_not_variant = [](Type ty) {

	{obj.ANOP, C_NONE, C_NONE, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0},
	{obj.ANOP, C_LCON, C_NONE, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0}, // nop variants, see #40689
	{obj.ANOP, C_DCON, C_NONE, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0}, // nop variants, see #40689
	{obj.ANOP, C_REG, C_NONE, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0},
	{obj.ANOP, C_FREG, C_NONE, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0},

[[legacy_attribute_snapshotting]]
==== Fixed variant selection behavior with `ArtifactView` and `ArtifactCollection`

The dependency resolution APIs for selecting different artifacts or files (`Configuration.getIncoming().artifactView { }` and `Configuration.getIncoming().getArtifacts()`) captured immutable copies of the underlying `Configuration`'s attributes to use for variant selection.

====

The `filter()` method has two variants, which behave differently:

* one takes a `{javaApi}/java/io/FilterReader.html[FilterReader]` and is designed to work with Ant filters, such as `ReplaceTokens`
* one takes a closure or link:{javadocPath}/org/gradle/api/Transformer.html[Transformer] that defines the transformation for each line of the source file

Note that both variants assume the source files are text-based.

	// VirtualServiceHosts is a list of hosts defined in the virtual service
	// if virtual service hostname is same as a the service registry host, then
	// the host would appear in Services as we need to generate all variants of the
	// service's hostname within a platform (e.g., foo, foo.default, foo.default.svc, etc.)
	VirtualServiceHosts []string

	// Routes in the virtual host
	Routes []*route.Route
}

		case stdISO8601TZ, stdISO8601ColonTZ, stdISO8601SecondsTZ, stdISO8601ShortTZ, stdISO8601ColonSecondsTZ, stdNumTZ, stdNumColonTZ, stdNumSecondsTz, stdNumShortTZ, stdNumColonSecondsTZ:
			// Ugly special case. We cheat and take the "Z" variants
			// to mean "the time zone as formatted for ISO 8601".
			if offset == 0 && (std == stdISO8601TZ || std == stdISO8601ColonTZ || std == stdISO8601SecondsTZ || std == stdISO8601ShortTZ || std == stdISO8601ColonSecondsTZ) {

	{obj.APCDATA, C_LCON, C_NONE, C_LCON, 0, 0, 0, 0, 0},
	{obj.AFUNCDATA, C_SCON, C_NONE, C_ADDR, 0, 0, 0, 0, 0},
	{obj.ANOP, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0, 0},
	{obj.ANOP, C_LCON, C_NONE, C_NONE, 0, 0, 0, 0, 0}, // nop variants, see #40689
	{obj.ANOP, C_REG, C_NONE, C_NONE, 0, 0, 0, 0, 0},
	{obj.ANOP, C_FREG, C_NONE, C_NONE, 0, 0, 0, 0, 0},
	{obj.ADUFFZERO, C_NONE, C_NONE, C_LBRA, 11, 4, 0, 0, 0}, // same as AJMP