switch (previous) {
          case NEW:
            snapshot = new StateSnapshot(TERMINATED);
            enqueueTerminatedEvent(NEW);
            break;
          case STARTING:
            snapshot = new StateSnapshot(STARTING, true, null);
            enqueueStoppingEvent(STARTING);
            doCancelStart();
            break;
          case RUNNING:
            snapshot = new StateSnapshot(STOPPING);

        this.longMessage = longMessage;
    }

    /**
     * Construct a new <code>MojoFailureException</code> exception providing a message.
     *
     * @param message
     */
    public MojoFailureException(String message) {
        super(message);
    }

    /**
     * Construct a new <code>MojoFailureException</code> exception wrapping an underlying <code>Throwable</code>

@GwtIncompatible
@J2ktIncompatible
@NullMarked
abstract class DummyProxy {

  /**
   * Returns a new proxy for {@code interfaceType}. Proxies of the same interface are equal to each
   * other if the {@link DummyProxy} instance that created the proxies are equal.
   */
  final <T> T newProxy(TypeToken<T> interfaceType) {
    Set<Class<?>> interfaceClasses = new LinkedHashSet<>();

import org.apache.maven.project.MavenProject;

public class BuildPlan {

    private final Map<MavenProject, Map<String, BuildStep>> plan = new LinkedHashMap<>();
    private final Map<MavenProject, List<MavenProject>> projects;
    private final Map<String, String> aliases = new HashMap<>();
    private volatile Set<String> duplicateIds;
    private volatile List<BuildStep> sortedNodes;

    BuildPlan() {

    protected final Map<Key, CacheRecord> cache = new ConcurrentHashMap<>();

    @Override
    public Key createKey(
            Plugin plugin,
            ClassLoader parentRealm,
            Map<String, ClassLoader> foreignImports,
            DependencyFilter dependencyFilter,
            List<RemoteRepository> repositories,
            RepositorySystemSession session) {

            }
            localRepositoryPath = new File(path, "repository").getAbsolutePath();
        }

        try {
            return repositorySystem.createLocalRepository(new File(localRepositoryPath));
        } catch (Exception e) {
            throw new MavenExecutionRequestPopulationException("Cannot create local repository.", e);
        }
    }

    ImmutableList.Builder<Range<K>> rangesBuilder = new ImmutableList.Builder<>(map.size());
    ImmutableList.Builder<V> valuesBuilder = new ImmutableList.Builder<>(map.size());
    for (Entry<Range<K>, ? extends V> entry : map.entrySet()) {
      rangesBuilder.add(entry.getKey());
      valuesBuilder.add(entry.getValue());
    }
    return new ImmutableRangeMap<>(rangesBuilder.build(), valuesBuilder.build());
  }

  public void testExecute() {
    MockExecutor mock = new MockExecutor();
    TestExecutor testExecutor = new TestExecutor(mock);
    testExecutor.execute(doNothing());
    mock.assertLastMethodCalled("execute");
  }

  public void testSubmit() throws InterruptedException, ExecutionException {
    {
      MockExecutor mock = new MockExecutor();
      TestExecutor testExecutor = new TestExecutor(mock);

        Xpp3Dom reportPlugins = configuration.getChild("reportPlugins");

        if (reportPlugins != null) {
            // new-style report configuration already present: warn since this new style has been deprecated
            // in favor of classical reporting section MSITE-647 / MSITE-684
            problems.add(new ModelProblemCollectorRequest(Severity.WARNING, Version.BASE)

    }

    @Override
    public UpgradeResult doApply(UpgradeContext context, Map<Path, Document> pomMap) {
        Set<Path> processedPoms = new HashSet<>();
        Set<Path> modifiedPoms = new HashSet<>();
        Set<Path> errorPoms = new HashSet<>();

        for (Map.Entry<Path, Document> entry : pomMap.entrySet()) {
            Path pomPath = entry.getKey();