Set<Artifact> dependencies = new HashSet<>();

        if ("g".equals(artifact.getArtifactId())) {
            Artifact a = null;
            try {
                a = factory.createBuildArtifact("org.apache.maven", "h", "1.0", "jar");
                dependencies.add(a);
            } catch (Exception e) {
                throw new ArtifactMetadataRetrievalException("Error retrieving metadata", e, a);
            }

        Set<Artifact> dependencies = new HashSet<>();

        if ("g".equals(artifact.getArtifactId())) {
            Artifact a = null;
            try {
                a = factory.createBuildArtifact("org.apache.maven", "h", "1.0", "jar");
                dependencies.add(a);
            } catch (Exception e) {
                throw new ArtifactMetadataRetrievalException("Error retrieving metadata", e, a);
            }

    }

    public Artifact createArtifact(String groupId, String artifactId, String version, String packaging) {
        return artifactFactory.createBuildArtifact(groupId, artifactId, version, packaging);
    }

    public Artifact createArtifactWithClassifier(
            String groupId, String artifactId, String version, String type, String classifier) {

    }

    protected Artifact createArtifact(String groupId, String artifactId, String version, String type) throws Exception {
        Artifact a = artifactFactory.createBuildArtifact(groupId, artifactId, version, type);

        return a;
    }

    protected void deleteLocalArtifact(Artifact artifact) throws Exception {
        deleteArtifact(artifact, localRepository());
    }

        File testData = getTestFile(directory);
        FileUtils.deleteDirectory(testData);
        testData.mkdirs();

        Artifact artifact = artifactFactory.createBuildArtifact("test", "test", version, type);
        artifact.setFile(new File(
                testData,
                "test-" + version + "." + artifact.getArtifactHandler().getExtension()));

            VersionRange versionRange,
            String type,
            String classifier,
            String scope,
            String inheritedScope,
            boolean optional);

    Artifact createBuildArtifact(String groupId, String artifactId, String version, String packaging);

    Artifact createProjectArtifact(String groupId, String artifactId, String version);

            String inheritedScope,
            boolean optional) {
        return createArtifact(groupId, artifactId, versionRange, type, classifier, scope, inheritedScope, optional);
    }

    public Artifact createBuildArtifact(String groupId, String artifactId, String version, String packaging) {
        return createArtifact(groupId, artifactId, version, null, packaging, null, null);
    }