void doAddDependencyMetadataRule(MutableModuleComponentResolveMetadata metadataImplementation, String variantName, Action<? super DependenciesMetadata> action) {
        metadataImplementation.variantMetadataRules.addDependencyConstraintAction(
            instantiator, notationParser, constraintNotationParser,
            variantAction(variantName, action))
    }

    def "maven optional dependencies are not accessible as dependency constraints"() {

        }
        dependencyMetadataRules.addDependencyAction(action);
    }

    }

    @Override
    public void withDependencyConstraints(Action<? super DependencyConstraintsMetadata> action) {
        metadata.getVariantMetadataRules().addDependencyConstraintAction(instantiator, dependencyMetadataNotationParser, dependencyConstraintMetadataNotationParser, new VariantMetadataRules.VariantAction<>(variantName, action));
    }

    @Override

    }

    public void addDependencyAction(VariantMetadataRules.VariantAction<? super DirectDependenciesMetadata> action) {
        dependencyActions.add(action);
    }

    public void addDependencyConstraintAction(VariantMetadataRules.VariantAction<? super DependencyConstraintsMetadata> action) {
        dependencyConstraintActions.add(action);
    }