return eventType;
    }

    @Override
    public Session getSession() {
        return session;
    }

    @Override
    public Optional<Project> getProject() {
        return Optional.ofNullable(session.getProject(delegate.getProject()));
    }

    @Override
    public Optional<MojoExecution> getMojoExecution() {

        File pom0Basedir = pom0.getParentFile();

        File pom1 = new File(pom0Basedir, "p1/pom.xml");

        // load everything...
        MavenProject project0 = getProject(pom0);
        MavenProject project1 = getProject(pom1);

        assertEquals(pom0Basedir, project1.getParent().getBasedir());
    }

            throw e;
        }
    }

    protected MavenProject getProject(File pom) throws Exception {
        ProjectBuildingRequest configuration = new DefaultProjectBuildingRequest();
        configuration.setLocalRepository(getLocalRepository());
        initRepoSession(configuration);

        return projectBuilder.build(pom, configuration).getProject();
    }

    @Override
    public Type getType() {
        return type;
    }

    @Override
    public MavenSession getSession() {
        return session;
    }

    @Override
    public MavenProject getProject() {
        return session.getCurrentProject();
    }

    @Override
    public MojoExecution getMojoExecution() {
        return mojoExecution;
    }

    @Override
    public Exception getException() {

    // test a build where projects use different versions of the same plugin

    @Test
    void testThatPluginDependencyThatHasSystemScopeIsResolved() throws Exception {
        MavenSession session = createMavenSession(getProject("project-contributing-system-scope-plugin-dep"));
        MavenProject project = session.getCurrentProject();
        Plugin plugin = project.getPlugin("org.apache.maven.its.plugins:maven-it-plugin");

        Maven maven = getContainer().lookup(Maven.class);
        MavenExecutionRequest request =
                createMavenExecutionRequest(getProject("simple")).setGoals(asList("validate"));

        MavenExecutionResult result = maven.execute(request);
        assertNotNull(result);

        Class<?> wsrClass = wsrClassCatcher.wsrClassRef.get();

        setProject(request.getProject());
        setResolveDependencies(request.isResolveDependencies());
        setValidationLevel(request.getValidationLevel());
        setResolveVersionRanges(request.isResolveVersionRanges());
        setRepositoryMerging(request.getRepositoryMerging());
    }

    @Override
    public MavenProject getProject() {
        return project;
    }

        ProjectBuildingRequest request = injectSession(toRequest(configuration));

        try {
            return projectBuilder.build(pom, request).getProject();
        } catch (ProjectBuildingException e) {
            throw transformError(e);
        }
    }

    // This is used by the SITE plugin.
    @Override

            MavenExecutionRequest request, ProjectBuildingException exception) {
        return exception.getResults().stream()
                .map(ProjectBuildingResult::getProject)
                .filter(Objects::nonNull)
                .filter(project -> request.getPom().equals(project.getFile()))
                .findFirst()
                .map(requestPomProject -> {

                }

                @Nonnull
                @Override
                public Optional<Project> getProject() {
                    return Optional.ofNullable(session.getProject(res.getProject()));
                }

                @Nonnull
                @Override
                public Collection<BuilderProblem> getProblems() {