.setShowErrors(true)
                .setPluginGroups(Arrays.asList("org.apache.maven.plugins"))
                .setLocalRepository(getLocalRepository())
                .setRemoteRepositories(getRemoteRepositories())
                .setPluginArtifactRepositories(getPluginArtifactRepositories())
                .setGoals(Arrays.asList("package"));

        if (pom != null) {

            return artifacts;
        }

        public Map<String, Artifact> getManagedVersions() {
            return managedVersions;
        }

        public List<ArtifactRepository> getRemoteRepositories() {
            return remoteRepositories;
        }

        public boolean isStale() {
            File pomFile = pomArtifact.getFile();
            if (pomFile != null) {

        // as well as its dependencies.

        if (request.isResolveRoot() /* && rootArtifact.getFile() == null */) {
            try {
                resolve(rootArtifact, request.getRemoteRepositories(), session);
            } catch (ArtifactResolutionException e) {
                result.addErrorArtifactException(e);
                return result;
            } catch (ArtifactNotFoundException e) {

            }

            @Override
            public List<ArtifactVersion> retrieveAvailableVersions(MetadataResolutionRequest request) {
                return retrieveAvailableVersions(
                        request.getArtifact(), request.getLocalRepository(), request.getRemoteRepositories());
            }
        };

        artifact.setFile(localFile);

        if (!localFile.exists()) {
            if (request.getRemoteRepositories().isEmpty()) {
                throw new IOException(localFile + " does not exist and no remote repositories are configured");
            }

            ArtifactRepository remoteRepo = request.getRemoteRepositories().get(0);

            File remoteFile = new File(remoteRepo.getBasedir(), remoteRepo.pathOf(artifact));

                .setShowErrors(true)
                .setPluginGroups(Arrays.asList("org.apache.maven.plugins"))
                .setLocalRepository(getLocalRepository())
                .setRemoteRepositories(getRemoteRepositories())
                .setPluginArtifactRepositories(getPluginArtifactRepositories())
                .setGoals(Arrays.asList("package"));

        if (pom != null) {

        ResolutionNode root = new ResolutionNode(originatingArtifact, repositoryRequest.getRemoteRepositories());

        try {
            root.addDependencies(artifacts, repositoryRequest.getRemoteRepositories(), filter);
        } catch (CyclicDependencyException e) {
            result.addCircularDependencyException(e);

            return result;

        for (ArtifactRepository repo : getRemoteRepositories()) {
            if (repo.getId() != null && repo.getId().equals(repository.getId())) {
                return this;
            }
        }

        getRemoteRepositories().add(repository);

        return this;
    }

    @Override
    public List<ArtifactRepository> getRemoteRepositories() {
        if (remoteRepositories == null) {

        }

        ResolutionGroup cached = cache.get(
                artifact,
                request.isResolveManagedVersions(),
                request.getLocalRepository(),
                request.getRemoteRepositories());

        if (cached != null
                // if the POM has no file, we cached a missing artifact, only return the cached data if no update forced

        }

        public List<ArtifactVersion> retrieveAvailableVersions(MetadataResolutionRequest request)
                throws ArtifactMetadataRetrievalException {
            return retrieveAvailableVersions(
                    request.getArtifact(), request.getLocalRepository(), request.getRemoteRepositories());
        }
    }