specific language governing permissions and limitations
under the License.
-->

<project>
    <modelVersion>4.9.1</modelVersion>
    <groupId>tests.project</groupId>
    <artifactId>future-model-version</artifactId>
    <version>1</version>

            projectBuildFutureTask.run();
        }
        return projectBuildFutureTask;
    }

    public Future<ProjectSegment> take() throws InterruptedException {
        return null;
    }

    public Future<ProjectSegment> poll() {
        return null;
    }

    public Future<ProjectSegment> poll(long timeout, TimeUnit unit) throws InterruptedException {
        return null;
    }

    @Override
    public ModelSource resolveModel(final Parent parent, AtomicReference<Parent> modified)
            throws UnresolvableModelException {
        Result result;
        try {
            Future<Result> future = parentCache.computeIfAbsent(parent.getId(), id -> {
                ForkJoinPool pool = new ForkJoinPool(MAX_CAP);
                ForkJoinTask<Result> task = new ForkJoinTask<>() {
                    Result result;

                    // don't stop processing in case a future segment explicitly excludes this repo
                }
                // check for external:http:*
                else if (EXTERNAL_HTTP_WILDCARD.equals(repo) && isExternalHttpRepo(originalRepository)) {
                    result = true;
                    // don't stop processing in case a future segment explicitly excludes this repo

                    .collect(Collectors.toList());
            try {
                List<Future<InterimResult>> futures = executor.invokeAll(tasks);
                List<InterimResult> list = new ArrayList<>();
                for (Future<InterimResult> future : futures) {
                    InterimResult interimResult = future.get();
                    list.add(interimResult);
                }
                return list;

            return getProjectAExecutionPlan();
        }
        if (project.equals(ProjectDependencyGraphStub.B)) {
            return getProjectBExecutionPlan();
        }
        // The remaining are basically "for future expansion"
        List<MojoExecution> me = new ArrayList<>();
        me.add(createMojoExecution("resources", "default-resources", PROCESS_RESOURCES));
        me.add(createMojoExecution("compile", "default-compile", COMPILE));

        if (layout == null) {
            layout = new UnknownRepositoryLayout(id, layouts.get("default"));
        }

        return layout;
    }

    /**
     * In the future, the legacy system might encounter repository types for which no layout components exists because
     * the actual communication with the repository happens via a repository connector. As a minimum, the legacy system

        List<Future<ProjectSegment>> futures = new ArrayList<>();
        for (ProjectSegment projectBuild : projectBuildList) {
            final Future<ProjectSegment> buildFuture =
                    service.submit(new Outputter(threadOutputMuxer, projectBuild, lyrics.next()));
            futures.add(buildFuture);
        }

        for (Future<ProjectSegment> future : futures) {
            future.get();

    }

    @Test
    void testFutureModelVersion() throws Exception {
        File f1 = getTestFile("src/test/resources/projects/future-model-version-pom.xml");

        ProjectBuildingException e = assertThrows(
                ProjectBuildingException.class, () -> getProject(f1), "Expected to fail for future versions");
        assertThat(e.getMessage(), containsString("Building this project requires a newer version of Maven"));
    }

 * under the License.
 */
package org.apache.maven.execution;

/**
 * Defines events that Maven fires during a build. <strong>Warning:</strong> This interface might be extended in future
 * Maven versions to support further events. Hence it is strongly recommended to derive custom listeners from
 * {@link AbstractExecutionListener} in order to avoid interoperability problems.
 *
 */