versionIndex.put(version, workspace.getRepository());
            }
        }

        for (MetadataResult metadataResult : metadataResults) {
            result.addException(metadataResult.getException());

            ArtifactRepository repository = metadataResult.getRequest().getRepository();
            if (repository == null) {
                repository = session.getLocalRepository();
            }

            assertEquals(1, ((Collection) result.getProblems()).size());
            result.getProblems().forEach(p -> {
                assertTrue(expectedException.isInstance(p.getException()));
                assertTrue(p.getException().getMessage().contains(partOfMessage));
            });
        }
    }

    @Test
    void testProcessPackagingAttribute() throws ProjectBuildingException {

                        .flatMap(r -> r.getProblems().stream())
                        .filter(p -> p.getException() instanceof CycleDetectedException)
                        .findAny()
                        .orElse(null);
                if (cycle != null) {
                    final CycleDetectedException cde = (CycleDetectedException) cycle.getException();
                    throw new ProjectBuildingException(
                            null,

          });
      executor.execute(
          new Runnable() {
            @Override
            public void run() {
              future.setException(new IllegalArgumentException("failure"));
              if (!future.isDone()) {
                errorMessage.set("SetException call exited before future was complete.");
              }
            }
          });
      executor.execute(
          new Runnable() {

          });
      executor.execute(
          new Runnable() {
            @Override
            public void run() {
              future.setException(new IllegalArgumentException("failure"));
              if (!future.isDone()) {
                errorMessage.set("SetException call exited before future was complete.");
              }
            }
          });
      executor.execute(
          new Runnable() {