// ----------------------------------------------------------------------

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        if (getGroupId() != null) {
            sb.append(getGroupId());
            sb.append(':');
        }
        appendArtifactTypeClassifierString(sb);
        sb.append(':');
        if (getBaseVersionInternal() != null) {

        return project.getArtifact().getFile();
    }

    /** {@inheritDoc} */
    @Override
    public String getGroupId() {
        return artifact.getGroupId();
    }

    /** {@inheritDoc} */
    @Override
    public String getArtifactId() {
        return artifact.getArtifactId();
    }

    /** {@inheritDoc} */
    @Override

     */
    @Test
    public void testArtifactMap() throws Exception {
        assertEquals(
                "g0",
                ((Artifact) ReflectionValueExtractor.evaluate("project.artifactMap(g0:a0:c0)", project)).getGroupId());
        assertEquals(
                "a1",
                ((Artifact) ReflectionValueExtractor.evaluate("project.artifactMap(g1:a1:c1)", project))
                        .getArtifactId());
        assertEquals(

    }

    @Override
    public Artifact createDependencyArtifact(Dependency dependency) {
        Artifact artifact = new DefaultArtifact(
                dependency.getGroupId(),
                dependency.getArtifactId(),
                dependency.getVersion(),
                dependency.getScope(),
                dependency.getType(),
                dependency.getClassifier(),

                }
            } else {
                return model;
            }
        }
    }

    private boolean withinSameGav(Artifact a1, Artifact a2) {
        return Objects.equals(a1.getGroupId(), a2.getGroupId())
                && Objects.equals(a1.getArtifactId(), a2.getArtifactId())
                && Objects.equals(a1.getVersion(), a2.getVersion());
    }

    protected AbstractArtifactResolutionException(
            String message, Artifact artifact, List<ArtifactRepository> remoteRepositories, Throwable t) {
        this(
                message,
                artifact.getGroupId(),
                artifact.getArtifactId(),
                artifact.getVersion(),
                artifact.getType(),
                artifact.getClassifier(),
                remoteRepositories,

        Map<String, ArtifactRepository> versionIndex = new HashMap<>();

        Metadata metadata = new DefaultMetadata(
                request.getArtifact().getGroupId(),
                request.getArtifact().getArtifactId(),
                MAVEN_METADATA_XML,
                wantedNature);

        List<MetadataRequest> metadataRequests =

    //
    // ----------------------------------------------------------------------

    public PluginDescriptor() {}

    public PluginDescriptor(PluginDescriptor original) {
        this.setGroupId(original.getGroupId());
        this.setArtifactId(original.getArtifactId());
        this.setVersion(original.getVersion());
        this.setGoalPrefix(original.getGoalPrefix());

        @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

                String str = ownerMojo != null ? " The " + ownerMojo.getId() : "A";
                String msg = str + " mojo is already being executed "
                        + "on the project " + session.getCurrentProject().getGroupId()
                        + ":" + session.getCurrentProject().getArtifactId() + ". "
                        + "This mojo execution will be blocked "
                        + "until the mojo is done.";