// default does nothing
    }

    @Override
    public void sessionStarted(ExecutionEvent event) {
        // default does nothing
    }

    @Override
    public void sessionEnded(ExecutionEvent event) {
        // default does nothing
    }

    @Override
    public void projectSkipped(ExecutionEvent event) {
        // default does nothing
    }

    @Override

    }

    @Override
    public void onEvent(Object event) {
        if (event instanceof ExecutionEvent executionEvent) {
            if (executionEvent.getType() == ExecutionEvent.Type.SessionEnded) {
                usedTypes.clear();
            }
        }
    }

    @Override
    public Optional<Type> lookup(String id) {
        return Optional.of(require(id));
    }

    @Override

    }

    @Override
    public void onEvent(Object event) {
        if (event instanceof ExecutionEvent executionEvent) {
            if (executionEvent.getType() == ExecutionEvent.Type.SessionEnded) {
                allHandlers.clear();
            }
        }
    }

    public ArtifactHandler getArtifactHandler(String type) {
        requireNonNull(type, "null type");

    }

    @Override
    public void onEvent(Object event) {
        if (event instanceof ExecutionEvent executionEvent) {
            if (executionEvent.getType() == ExecutionEvent.Type.SessionEnded) {
                allHandlers.clear();
            }
        }
    }

    @Override
    public ArtifactHandler getArtifactHandler(String id) {
        return allHandlers.computeIfAbsent(id, k -> {

        } catch (Exception e) {
            session.getResult().addException(e);
        } finally {
            eventCatapult.fire(ExecutionEvent.Type.SessionEnded, session, null);
        }
    }

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

        MavenProject rootProject = session.getTopLevelProject();

                validationPluginExcludes(repositorySystemSession);
            } else if (executionEvent.getType() == ExecutionEvent.Type.SessionEnded) {
                reportSessionCollectedValidationIssues(executionEvent.getSession());
            }
        }
    }

    private List<?> validationPluginExcludes(RepositorySystemSession session) {

         * @param roles The roles.
         */
        public SamlUser(final String nameId, final String sessionIndex, final String nameIdFormat, final String nameidNameQualifier,
                final String nameidSPNameQualifier, final String[] groups, final String[] roles) {
            this.nameId = nameId;
            this.sessionIndex = sessionIndex;
            this.nameIdFormat = nameIdFormat;

        CountDownLatch latch = new CountDownLatch(sessionCount);

        for (int i = 0; i < sessionCount; i++) {
            final int sessionIndex = i;
            executor.submit(() -> {
                try {
                    String sessionId = "concurrent-session-" + sessionIndex;
                    byte[] salt = preauthService.generatePreauthSalt();