*/
    ModelTransformerContext initialize(ModelBuilderRequest request, ModelProblemCollector problems);

    /**
     * The immutable transformerContext, can be used after the buildplan is finished.
     *
     * @return the immutable transformerContext
     */
    ModelTransformerContext build();

     */
    public Set<MavenProject> getUnfinishedProjects() {
        Set<MavenProject> unfinished = new HashSet<>(projectBuilds.getProjects());
        unfinished.removeAll(finishedProjects);
        return unfinished;
    }

    /**
     * @return set of projects that have been successfully processed by the build.
     */

        // X depends only on B and C
        assertEquals(2, dependenciesX.size());

        List<MavenProject> activeDependenciesC = graph.getActiveDependencies(ProjectDependencyGraphStub.C);
        // A already finished
        assertEquals(0, activeDependenciesC.size());

        List<MavenProject> activeDependenciesX = graph.getActiveDependencies(ProjectDependencyGraphStub.X);
        // waiting for C

                    rootSession, projectSegment, reactorContext, taskSegment, muxer, duplicateArtifactIds);
            service.submit(cb);
        }

        // for each finished project
        for (int i = 0; i < analyzer.getNumberOfBuilds(); i++) {
            try {
                ProjectSegment projectBuild = service.take().get();

        return Collections.emptyList();
    }

    @Override
    public Artifact transformArtifact(Artifact artifact) {
        return artifact;
    }

    @Override
    public Collection<? extends Metadata> finish(Collection<? extends Artifact> artifacts) {
        LinkedHashMap<String, PluginsMetadata> plugins = new LinkedHashMap<>();
        for (Artifact artifact : artifacts) {

 *
 */
@Deprecated
public interface ResolutionListener {
    String ROLE = ResolutionListener.class.getName();

    int TEST_ARTIFACT = 1;

    int PROCESS_CHILDREN = 2;

    int FINISH_PROCESSING_CHILDREN = 3;

    int INCLUDE_ARTIFACT = 4;

    int OMIT_FOR_NEARER = 5;

    int UPDATE_SCOPE = 6;

    @Deprecated
    int MANAGE_ARTIFACT = 7;

    int OMIT_FOR_CYCLE = 8;

                artifact = artifact.setVersion(snapshotMetadata.getExpandedVersion(artifact));
            }
        }

        return artifact;
    }

    @Override
    public Collection<? extends Metadata> finish(Collection<? extends Artifact> artifacts) {
        return Collections.emptyList();
    }

 without limitation  the rights to  use, copy, modify,  merge, publish,
 distribute,  sublicense, and/or sell  copies of  the Software,  and to
 permit persons to whom the Software  is furnished to do so, subject to
 the following conditions:

 The  above  copyright  notice  and  this permission  notice  shall  be
 included in all copies or substantial portions of the Software.

        return Collections.emptyList();
    }

    @Override
    public Artifact transformArtifact(Artifact artifact) {
        return artifact;
    }

    @Override
    public Collection<? extends Metadata> finish(Collection<? extends Artifact> artifacts) {
        return snapshots.values();
    }

        return Collections.emptyList();
    }

    @Override
    public Artifact transformArtifact(Artifact artifact) {
        return artifact;
    }

    @Override
    public Collection<? extends Metadata> finish(Collection<? extends Artifact> artifacts) {
        for (Artifact artifact : artifacts) {
            Object key = VersionsMetadata.getKey(artifact);
            if (processedVersions.get(key) == null) {