}

    @Override
    public String getBaseVersion() {
        return artifact.getBaseVersion();
    }

    @Override
    public Object getKey() {
        return "project " + artifact.getGroupId() + ":" + artifact.getArtifactId();
    }

    @Override
    public void merge(ArtifactMetadata metadata) {
        ProjectArtifactMetadata m = (ProjectArtifactMetadata) metadata;

            String message = (++counter) + ") " + artifact.getId();

            buffer.append(constructMissingArtifactMessage(
                    message,
                    "  ",
                    artifact.getGroupId(),
                    artifact.getArtifactId(),
                    artifact.getVersion(),
                    artifact.getType(),
                    artifact.getClassifier(),

    String SCOPE_PROVIDED = "provided";

    String SCOPE_SYSTEM = "system";

    String SCOPE_IMPORT = "import"; // Used to import dependencyManagement dependencies

    String getGroupId();

    String getArtifactId();

    String getVersion();

    void setVersion(String version);

    String getScope();

    String getType();

    String getClassifier();

    /**
     * Whether this metadata should be stored alongside the group.
     *
     * @return whether this metadata should be stored alongside the group
     */
    boolean storedInGroupDirectory();

    String getGroupId();

    String getArtifactId();

    String getBaseVersion();

    Object getKey();

    /**
     * Get the filename of this metadata on the local repository.
     *

                .version("1.0.0");
        ExtendedPluginDescriptor descriptor = builder.build();
        assertEquals("additional", descriptor.getAdditionalField());
        assertEquals("org.apache.maven", descriptor.getGroupId());
    }

    }

    public String getBaseMessage() {
        return baseMessage;
    }

    public String getArtifactId() {
        return artifactId;
    }

    public String getGroupId() {
        return groupId;
    }

    public String getType() {
        return type;
    }

    public String getVersion() {
        return version;
    }

    public String getArtifactKey() {

    public boolean storedInGroupDirectory() {
        return true;
    }

    @Override
    public boolean storedInArtifactVersionDirectory() {
        return false;
    }

    @Override
    public String getGroupId() {
        return groupId;
    }

    @Override
    public String getArtifactId() {
        return null;
    }

    @Override
    public String getBaseVersion() {
        return null;
    }

    public List<String> findVersions(Artifact artifact) {
        return Collections.emptyList();
    }

    @Override
    public Model findModel(Artifact artifact) {
        if (GROUP_ID.equals(artifact.getGroupId())
                && ARTIFACT_ID.equals(artifact.getArtifactId())
                && VERSION.equals(artifact.getVersion())) {
            Model m = new Model();
            m.setArtifactId(ARTIFACT_ID);

        mainArtifact = mainArtifact.setFile(source);
        request.addArtifact(mainArtifact);

        String versionKey = artifact.getGroupId() + ':' + artifact.getArtifactId();
        String snapshotKey = null;
        if (artifact.isSnapshot()) {
            snapshotKey = versionKey + ':' + artifact.getBaseVersion();

        @Override
        public boolean storedInGroupDirectory() {
            return metadata.getArtifactId().isEmpty();
        }

        @Override
        public String getGroupId() {
            return nullify(metadata.getGroupId());
        }

        @Override
        public String getArtifactId() {
            return nullify(metadata.getArtifactId());
        }

        @Override