* @throws SettingsBuilderException if the effective settings could not be built
     */
    @Nonnull
    default SettingsBuilderResult build(
            @Nonnull Session session, @Nonnull Source installationSettingsSource, @Nonnull Source userSettingsSource) {
        return build(session, installationSettingsSource, null, userSettingsSource);
    }

    /**
     * Builds the effective settings of the specified settings paths.
     *

     *            null}.
     * @param session The repository session to use for resolving the plugin's main artifact, must not be {@code null}.
     * @return The plugin descriptor, never {@code null}.
     */
    PluginDescriptor getPluginDescriptor(
            Plugin plugin, List<RemoteRepository> repositories, RepositorySystemSession session)

        @Override
        public void afterSessionStart(MavenSession session) {
            session.getUserProperties().setProperty("injected", "bar");
        }
    }

    public static class InjectReactorDependency extends AbstractMavenLifecycleParticipant {
        @Override
        public void afterProjectsRead(MavenSession session) {
            injectReactorDependency(session.getProjects(), "module-a", "module-b");
        }

            }
            this.session = session;
            this.modelBuilderSession = modelBuilder.newSession();
            // Save the ModelBuilderSession for later retrieval by the DefaultConsumerPomBuilder.
            // Use replace(key, null, value) to make sure the *main* session, i.e. the one used
            // to load the projects, is stored. This is to avoid the session being overwritten

    /**
     * Returns the count of access results for the given session ID.
     *
     * @param sessionId the session ID
     * @return the count of access results
     */
    int getCount(String sessionId);

    /**
     * Deletes access results for the given session ID.
     *
     * @param sessionId the session ID
     */
    void delete(String sessionId);

    /**
     * Deletes all access results.
     */

    InstallRequest remapInstallArtifacts(RepositorySystemSession session, InstallRequest request);

    DeployRequest remapDeployArtifacts(RepositorySystemSession session, DeployRequest request);

    void injectTransformedArtifacts(RepositorySystemSession session, MavenProject currentProject) throws IOException;

    void transform(MavenProject project, RepositorySystemSession session, ModelSource src, Path tgt)

        return null;
    }

    @Override
    public MojoDescriptor getMojoDescriptor(
            Plugin plugin, String goal, List<RemoteRepository> repositories, RepositorySystemSession session) {
        return MojoExecutorStub.createMojoDescriptor(plugin);
    }

    @Override
    public ClassRealm getPluginRealm(MavenSession session, PluginDescriptor pluginDescriptor) {

    /**
     * Gets the currently active session.
     *
     * @return The currently active session or {@code null} if none.
     */
    MavenSession getSession();

    /**
     * Gets the currently active repository session.
     *
     * @return The currently active repository session or {@code null} if none.
     */
    RepositorySystemSession getRepositorySession();

    }

    private RepositorySystemSession createMockSession(Map<String, Object> configProperties) {
        RepositorySystemSession session = Mockito.mock(RepositorySystemSession.class);
        when(session.getConfigProperties()).thenReturn(configProperties);
        return session;
    }

    private DeployRequest createDeployRequestWithConsumerPom() {
        DeployRequest request = new DeployRequest();

        RepositorySystemSession session = rss(c);

        ArtifactRepository repository = repositorySystem.buildArtifactRepository(repo);

        if (session != null) {
            repositorySystem.injectMirror(session, Arrays.asList(repository));
            repositorySystem.injectProxy(session, Arrays.asList(repository));
            repositorySystem.injectAuthentication(session, Arrays.asList(repository));
        }