if (effectiveScope == null) {
            return null;
        }

        VersionRange versionRange = VersionRange.createFromVersionSpec(dependency.getVersion());

        Artifact dependencyArtifact = factory.createDependencyArtifact(
                dependency.getGroupId(),
                dependency.getArtifactId(),
                versionRange,

    String specialName = null;

    String[] expandedNames = {};

    /**
     * Gets the DFS referral version number.
     *
     * @return the version
     */
    public final int getVersion() {
        return this.version;
    }

    /**
     * Gets the size of this referral entry in bytes.
     *
     * @return the size
     */
    public final int getSize() {
        return this.size;

                dependency.getGroupId(),
                dependency.getArtifactId(),
                dependency.getClassifier(),
                null,
                dependency.getVersion(),
                props,
                stereotype);

        List<Exclusion> exclusions = new ArrayList<>(dependency.getExclusions().size());

        Set<String> projectIds = new HashSet<>(projects.size() * 2);

        for (MavenProject p : projects) {
            String key = ArtifactUtils.key(p.getGroupId(), p.getArtifactId(), p.getVersion());
            projectIds.add(key);
        }
        return projectIds;
    }

    private Set<String> getIgnorableArtifacts(Iterable<Artifact> artifactIterable) {

                    ArtifactMetadata newMd = new ArtifactMetadata(
                            md.getGroupId(),
                            md.getArtifactId(),
                            edge.getVersion(),
                            md.getType(),
                            md.getScopeAsEnum(),
                            md.getClassifier(),
                            edge.getArtifactUri(),

                    .warning("' is unknown for plugin '")
                    .warning(mojoExecution.getArtifactId())
                    .warning(":")
                    .warning(mojoExecution.getVersion())
                    .warning(":")
                    .warning(mojoExecution.getGoal());

            if (mojoExecution.getExecutionId() != null) {
                messageBuilder.warning(" (");

        CacheKey(Plugin plugin, List<RemoteRepository> repositories, RepositorySystemSession session) {
            groupId = plugin.getGroupId();
            artifactId = plugin.getArtifactId();
            version = plugin.getVersion();

            workspace = RepositoryUtils.getWorkspace(session);
            localRepo = session.getLocalRepository();
            this.repositories = new ArrayList<>(repositories.size());

        addDom(dom, "groupId", plugin.getGroupId(), plugin.getLocation("groupId"));
        addDom(dom, "artifactId", plugin.getArtifactId(), plugin.getLocation("artifactId"));
        addDom(dom, "version", plugin.getVersion(), plugin.getLocation("version"));

        Xpp3Dom configuration = (Xpp3Dom) plugin.getConfiguration();
        if (configuration != null) {
            configuration = new Xpp3Dom(configuration);

        assertEquals("test-group", project.getGroupId(), "groupId proto-inheritance failed.");
        assertEquals("real-artifact", project.getArtifactId(), "artifactId is masked.");
        assertEquals("1000", project.getVersion(), "version proto-inheritance failed.");

        // draw the NPE.
        project.getId();
    }

    @Test
    void testEmptyConstructor() {
        MavenProject project = new MavenProject();

            attributes.put("docsUrl", "https://docs.gradle.org");

            // TODO: This breaks if the version is changed later.
            attributes.put("gradleVersion", project.getVersion().toString());
            attributes.put("gradleVersion90", "9.0.0");
            attributes.put("gradleVersion8", "8.14.3");
            attributes.put("snippetsPath", "snippets");