} finally {
            eventCatapult.fire(ExecutionEvent.Type.SessionEnded, session, null);
        }
    }

    public List<TaskSegment> calculateTaskSegments(MavenSession session) throws Exception {

        MavenProject rootProject = session.getTopLevelProject();

        List<String> tasks = requireNonNull(session.getGoals()); // session never returns null, but empty list

   * @param n the number of characters to skip
   * @throws EOFException if this stream reaches the end before skipping all the characters
   * @throws IOException if an I/O error occurs
   */
  public static void skipFully(Reader reader, long n) throws IOException {
    checkNotNull(reader);
    while (n > 0) {
      long amt = reader.skip(n);
      if (amt == 0) {
        throw new EOFException();
      }
      n -= amt;
    }

    @Test
    void testHelpExecuteReturnsZero() throws Exception {
        UpgradeContext context = createMockContext();

        int result = help.execute(context);

        assertEquals(0, result, "Help goal should return 0 (success)");
    }

    @Test
    void testHelpExecuteDoesNotThrow() throws Exception {
        UpgradeContext context = createMockContext();

        // Should not throw any exceptions

            @Override
            public Integer call() throws Exception {
              runLatch.countDown();
              taskLatch.await();
              if (throwException) {
                throw new IllegalStateException("Fail");
              }
              return 25;
            }
          });

  @Override
  protected void setUp() throws Exception {
    super.setUp();

    exec = newCachedThreadPool();

    private String deploymentTimestamp;

    @Override
    public void transformForResolve(Artifact artifact, RepositoryRequest request) throws ArtifactResolutionException {
        // Only select snapshots that are unresolved (eg 1.0-SNAPSHOT, not 1.0-20050607.123456)
        if (artifact.isSnapshot() && artifact.getBaseVersion().equals(artifact.getVersion())) {

    void testReactorDependencyInjection() throws Exception {
        List<String> reactorOrder =
                getReactorOrder("lifecycle-participant-reactor-dependency-injection", InjectReactorDependency.class);
        assertEquals(Arrays.asList("parent", "module-b", "module-a"), reactorOrder);
    }

    private <T> List<String> getReactorOrder(String testProject, Class<T> participant) throws Exception {

        this.pluginArtifact = pluginArtifact;
    }

    public Lifecycle getLifecycleMapping(String lifecycleId) throws IOException, XMLStreamException {
        return getLifecycleMappings().get(lifecycleId);
    }

    public Map<String, Lifecycle> getLifecycleMappings() throws IOException, XMLStreamException {
        if (lifecycleMappings == null) {
            LifecycleConfiguration lifecycleConfiguration;

      throw new ExecutionException(e);
    } catch (Error e) {
      statsCounter.recordLoadException(ticker.read() - startTime);
      throw new ExecutionError(e);
    }

    if (calculatedValue == null) {
      String message = loader + " returned null for key " + key + ".";
      throw new CacheLoader.InvalidCacheLoadException(message);
    }

                        throw new UnsupportedOperationException();
                      }

                      @Override
                      public Iterator<String> iterator() {
                        throw new UnsupportedOperationException();
                      }

                      @Override
                      public boolean removeAll(Collection<?> collection) {

            throws ModelInterpolationException {
        interpolateObject(model, model, projectDir, config, debugEnabled);

        return model;
    }

    protected void interpolateObject(
            Object obj, Model model, File projectDir, ProjectBuilderConfiguration config, boolean debugEnabled)
            throws ModelInterpolationException {
        try {