* are resolved to component-level precision, meaning the coordinates of the resolved
 * variant's owning component are returned.
 */
public interface ComponentDependencyResolver {

    /**
     * Determines the published coordinates for an external dependency to component-level precision.
     *
     * @return null if the external dependency could not be resolved.
     */

     */
    class DependencyResolvers {

        private final VariantDependencyResolver variantResolver;
        private final ComponentDependencyResolver componentResolver;

        public DependencyResolvers(VariantDependencyResolver variantResolver, ComponentDependencyResolver componentResolver) {
            this.variantResolver = variantResolver;
            this.componentResolver = componentResolver;
        }

import java.util.Map;

import static org.gradle.api.internal.artifacts.result.DefaultResolvedComponentResult.eachElement;

/**
 * A {@link ComponentDependencyResolver} backed by a resolution result.
 */
public class ResolutionBackedComponentDependencyResolver implements ComponentDependencyResolver {

    private final ImmutableModuleIdentifierFactory moduleIdentifierFactory;

/**
 * A {@link VariantDependencyResolver} that performs version mapping.
 *
 * @see org.gradle.api.publish.VersionMappingStrategy
 */
public class VersionMappingComponentDependencyResolver implements ComponentDependencyResolver {

    private final ProjectDependencyPublicationResolver projectDependencyResolver;
    private final ResolvedComponentResult root;

    public VersionMappingComponentDependencyResolver(