* {@code profile > project}, hence active profile property may override project property.
     * <p>
     * The caller of this method should decide whether there is a project in scope (hence, a project instance
     * needs to be passed) or not.
     *
     * @param project {@link Project} or {@code null}.
     * @return the effective properties, never {@code null}
     */
    @Nonnull

        }

        if (mojo instanceof ContextEnabled) {
            MavenProject project = session.getCurrentProject();

            Map<String, Object> pluginContext = session.getPluginContext(pluginDescriptor, project);

            if (pluginContext != null) {
                pluginContext.put("project", project);

                pluginContext.put("pluginDescriptor", pluginDescriptor);

    private static final String PREFIX_PROJECT = "project.";
    private static final String PREFIX_POM = "pom.";
    private static final List<String> PROJECT_PREFIXES_3_1 = Arrays.asList(PREFIX_POM, PREFIX_PROJECT);
    private static final List<String> PROJECT_PREFIXES_4_0 = Collections.singletonList(PREFIX_PROJECT);

    private static final Collection<String> TRANSLATED_PATH_EXPRESSIONS;

    }

    @Test
    void testBuildProject() {
        Artifact artifact = session.createArtifact("org.codehaus.plexus", "plexus-utils", "1.4.5", "pom");

        Project project = project(artifact);
        assertNotNull(project);
    }

    @Test
    void testCollectArtifactDependencies() {
        Artifact artifact =

            Project project = request.getProject().get();
            rootArtifact = project.getPomArtifact();
            root = null;
            dependencies = project.getDependencies();
            managedDependencies = project.getManagedDependencies();
            remoteRepositories = session.getService(ProjectManager.class).getRemoteProjectRepositories(project);
        } else {

                            .getData()
                            .computeIfAbsent(PROJECT_INDEX, () -> new ProjectIndex(session.getProjects()));

                    int index = projectIndex.getIndices().get(projectId);

                    MavenProject forkedProject = projectIndex.getProjects().get(projectId);

                    forkedProjects.add(forkedProject);

                    MavenProject executedProject = forkedProject.clone();

    private void injectPluginDeclarationFromProject(Plugin plugin, MavenProject project) {
        Plugin pluginInPom = findPlugin(plugin, project.getBuildPlugins());

        if (pluginInPom == null && project.getPluginManagement() != null) {
            pluginInPom = findPlugin(plugin, project.getPluginManagement().getPlugins());
        }

        if (pluginInPom != null) {
            if (plugin.getVersion() == null) {

            Project project = request.getProject().get();
            rootArtifact = project.getPomArtifact();
            root = null;
            dependencies = project.getDependencies();
            managedDependencies = project.getManagedDependencies();
            remoteRepositories = session.getService(ProjectManager.class).getRemoteProjectRepositories(project);
        } else {

        assertEquals("https://project.url/child", pom.getValue("url"));
        assertEquals("https://viewvc.project.url/child", pom.getValue("scm/url"));
        assertEquals("https://scm.project.url/child", pom.getValue("scm/connection"));
        assertEquals("https://scm.project.url/child", pom.getValue("scm/developerConnection"));
        assertEquals("https://site.project.url/child", pom.getValue("distributionManagement/site/url"));

    Map<String, String> getUserProperties();

    /**
     * Gets the base directory of the current project (if any).
     *
     * @return The base directory of the current project or {@code null} if none.
     */
    Path getProjectDirectory();

    /**
     * Gets current calculated project properties
     *
     * @return The project properties, never {@code null}.
     */
    Map<String, String> getProjectProperties();