private final Project project;
    private final Provider<BwcVersions.UnreleasedVersionInfo> unreleasedVersionInfo;
    private final Provider<InternalDistributionBwcSetupPlugin.BwcTaskThrottle> bwcTaskThrottleProvider;

    private Provider<File> checkoutDir;

    public BwcSetupExtension(
            Project project,

@Experimental
public interface ProjectBuilder extends Service {

    /**
     * Creates a {@link org.apache.maven.api.Project} from a POM file.
     *
     * @param request {@link ProjectBuilderRequest}
     * @return the {@link ProjectBuilderResult} containing the built project and possible errors
     * @throws ProjectBuilderException if the project cannot be created
     * @throws IllegalArgumentException if an argument is {@code null} or invalid
     */

         *   <li>In standard Maven project locations relative to the specified path</li>
         * </ul>
         *
         * @param project the path to search for a POM file
         * @return the path to the located POM file, or null if no POM can be found
         * @throws NullPointerException if project is null
         */
        @Nullable
        Path locateExistingPom(@Nonnull Path project);
    }

    /**

        File f = getFileForClasspathResource(DIR + "project-with-scoped-dependencies.xml");

        MavenProject project = getProjectWithDependencies(f);

        Artifact artifact;

        assertNotNull(project, "Test project can't be null!");

        checkArtifactIdScope(project, "provided", "provided");
        checkArtifactIdScope(project, "test", "test");
        checkArtifactIdScope(project, "compile", "compile");

     */
    List<MavenProject> getDownstreamProjects(MavenProject project, boolean transitive);

    /**
     * Gets the upstream projects of the specified project. An upstream project is a project that directly or indirectly
     * is a prerequisite of the given project.
     *
     * @param project The project whose upstream projects should be retrieved, must not be {@code null}.

public class TestWithSslPlugin implements Plugin<Project> {

    @Override
    public void apply(Project project) {
        File keyStoreDir = new File(project.getBuildDir(), "keystore");
        TaskProvider<ExportElasticsearchBuildResourcesTask> exportKeyStore = project.getTasks()
            .register("copyTestCertificates", ExportElasticsearchBuildResourcesTask.class, (t) -> {

    // - project building exception
    // - invalid project model exception: list of markers
    // - xmlpull parser exception
    List<Throwable> getExceptions();

    MavenExecutionResult addException(Throwable e);

    boolean hasExceptions();

    /**
     * Gets the build summary for the specified project.
     *

        this.project = project;
        this.fixtures = project.container(Project.class);
    }

    public void useFixture() {
        useFixture(this.project.getPath());
    }

    public void useFixture(String path) {
        addFixtureProject(path);
        serviceToProjectUseMap.put(path, this.project.getPath());
    }

    public void useFixture(String path, String serviceName) {

     * @param time The build time of the project in milliseconds.
     * @param cause The cause of the build failure, may be {@code null}.
     */
    public BuildFailure(MavenProject project, long time, Throwable cause) {
        this(project, Duration.ofMillis(time), cause);
    }

    /**
     * Creates a new build summary for the specified project.
     *
     * @param project The project being summarized, must not be {@code null}.

${includes} = ?"${maven.user.conf}/maven-system.properties", \
              ?"${maven.project.conf}/maven-system.properties"

#
# Settings
#
# Define the default three levels for settings.
# The '-is' flag will override the 'maven.installation.settings' property.
# The '-ps' flag will override the 'maven.project.settings' property.
# The '-s' flag will override the 'maven.user.settings' property.