// for each exception
    // - knowing what artifacts are missing
    // - 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.
     *

       * class with a manual reference back to the "containing" class.)
       *
       * This has the nice-ish side effect of limiting reentrancy: run() calls
       * timeoutFuture.setException() calls run(). That reentrancy would already be harmless, since
       * timeoutFuture can be set (and delegate cancelled) only once. (And "set only once" is

        if (result.hasExceptions()) {
            throw new ArtifactResolutionException(
                    "Unknown error during artifact resolution, " + request + ", " + result.getExceptions(),
                    request.getArtifact(),
                    request.getRemoteRepositories());
        }
    }

    private static <T> List<T> toList(Collection<T> items) {

                createMavenExecutionRequest(getProject("cyclic-reference")).setGoals(asList("validate"));

        MavenExecutionResult result = maven.execute(request);

        assertEquals(ProjectCycleException.class, result.getExceptions().get(0).getClass());
    }

    @Test
    void testMavenProjectNoDuplicateArtifacts() throws Exception {
        MavenProjectHelper mavenProjectHelper = getContainer().lookup(MavenProjectHelper.class);

     * Gets the exceptions that occurred while resolving the version range.
     *
     * @return The list of exceptions that occurred during resolution, never {@code null}
     */
    @Nonnull
    List<Exception> getExceptions();

    /**
     * Gets the versions (in ascending order) that matched the requested range.
     *
     * @return The list of matching versions, never {@code null}. An empty list indicates

      // As soon as the first one fails, make that failure the result of the output future.
      // The results of all other inputs are then ignored (except for logging any failures).
      boolean completedWithFailure = setException(throwable);
      if (!completedWithFailure) {
        // Go up the causal chain to see if we've already seen this cause; if we have, even if
        // it's wrapped by a different exception, don't log it.

                            + e.getMessage())
                    .setLocation(file.getLocation(missing ? "missing" : "exists"))
                    .setException(e));
            return false;
        }

        if (path == null) {
            return false;
        }

        File f = new File(path);

        if (!f.isAbsolute()) {

      case NOT_DONE:
        break;
      case FINISHED:
        f.set(null);
        break;
      case CANCELLED:
        f.cancel(false);
        break;
      case FAILED:
        f.setException(new Exception());
        break;
    }
    return f;
  }

                                "Failed to determine activation for profile " + profile.getId() + ": " + e.getMessage())
                        .setLocation(profile.getLocation(""))
                        .setException(e));
                return false;
            }
        }
        return isActive;
    }

    private boolean isActiveByDefault(Profile profile) {

    long r = 0;
    List<Facade<Integer>> list = new ArrayList<>(reps);
    for (int i = 0; i < reps; i++) {
      Facade<Integer> localFuture = impl.newFacade();
      list.add(localFuture);
      localFuture.setException(exception);
    }
    for (int i = 0; i < reps; i++) {
      Facade<Integer> facade = list.get(i);
      try {
        facade.get();
        r++;
      } catch (ExecutionException e) {
        r += 2;