private Artifact originatingArtifact;

    private List<Artifact> artifacts;

    private List<ArtifactRepository> remoteRepositories;

    public UnresolvedArtifacts(
            Artifact originatingArtifact, List<Artifact> artifacts, List<ArtifactRepository> remoteRepositories) {
        this.originatingArtifact = originatingArtifact;

        this.artifacts = artifacts;

        this.remoteRepositories = remoteRepositories;

        @Nonnull
        public ArtifactInstallerRequestBuilder artifacts(@Nullable Collection<ProducedArtifact> artifacts) {
            this.artifacts = artifacts != null ? artifacts : Collections.emptyList();
            return this;
        }

        @Nonnull
        public ArtifactInstallerRequest build() {
            return new DefaultArtifactInstallerRequest(session, trace, artifacts);
        }

    interface ArtifactsSetWithResult extends Set<Artifact> {
        DependencyResolutionResult getResult();
    }

    /**
     * CacheRecord
     */
    class CacheRecord {

        private final Set<Artifact> artifacts;

        private final LifecycleExecutionException exception;

        CacheRecord(Set<Artifact> artifacts) {
            this.artifacts = artifacts;
            this.exception = null;
        }

        private final ExtensionDescriptor descriptor;

        private final List<Artifact> artifacts;

        CacheRecord(ClassRealm realm, ExtensionDescriptor descriptor, List<Artifact> artifacts) {
            this.realm = realm;
            this.descriptor = descriptor;
            this.artifacts = artifacts;
        }

        public ClassRealm getRealm() {
            return realm;
        }

        Artifact artifact2 = mock(Artifact.class);
        when(artifact2.getFile()).thenReturn(null);
        when(artifact2.getGroupId()).thenReturn("group1");
        when(artifact2.getArtifactId()).thenReturn("artifact2");
        when(artifact2.getExtension()).thenReturn("ext");
        when(artifact2.getClassifier()).thenReturn("classifier1");
        when(artifact2.getVersion()).thenReturn("1");
        artifacts.add(artifact2);

        return this;
    }

    public void addArtifact(Artifact artifact) {
        if (artifacts == null) {
            artifacts = new LinkedHashSet<>();
        }

        artifacts.add(artifact);
    }

    public Set<Artifact> getArtifacts() {
        return artifacts;
    }

    public void addRequestedArtifact(Artifact artifact) {
        if (requestedArtifacts == null) {

        Set<Artifact> artifacts = new LinkedHashSet<>(4);
        artifacts.add(new DefaultArtifact("g", "a1", "v", "compile", "jar", "", null));
        artifacts.add(new DefaultArtifact("g", "a2", "v", "compile", "jar", "", null));
        artifacts.add(new DefaultArtifact("g", "a3", "v", "compile", "jar", "", null));
        artifacts.add(new DefaultArtifact("g", "a4", "v", "compile", "jar", "", null));

    public CoreExtensionEntry(
            ClassRealm realm,
            Collection<String> artifacts,
            Collection<String> packages,
            String key,
            XmlNode configuration) {
        this.realm = realm;
        this.artifacts = Collections.unmodifiableSet(new HashSet<>(artifacts));
        this.packages = Collections.unmodifiableSet(new HashSet<>(packages));
        this.key = key;

    public ResolutionGroup(
            Artifact pomArtifact, Set<Artifact> artifacts, List<ArtifactRepository> resolutionRepositories) {
        super(pomArtifact, artifacts, resolutionRepositories);
    }

    public ResolutionGroup(
            Artifact pomArtifact,
            Artifact relocatedArtifact,
            Set<Artifact> artifacts,
            Map<String, Artifact> managedVersions,

     * @param resolvedArtifacts   artifacts that could be resolved
     * @param missingArtifacts    artifacts that could not be resolved
     * @param remoteRepositories  remote repositories where the missing artifacts were not found
     */
    public MultipleArtifactsNotFoundException(
            Artifact originatingArtifact,
            List<Artifact> resolvedArtifacts,