}

        @Override
        public int hashCode() {
            return id().hashCode();
        }

        @Override
        public boolean equals(Object obj) {
            return obj != null && getClass() == obj.getClass() && id().equals(((DefaultExtensibleEnum) obj).id());
        }

        @Override
        public String toString() {
            return getClass().getSimpleName() + "[" + id() + "]";

    @Nonnull
    @Override
    public ArtifactCoordinate toCoordinate() {
        return session.createArtifactCoordinate(this);
    }

    @Override
    public boolean equals(Object o) {
        return o instanceof Artifact && Objects.equals(key(), ((Artifact) o).key());
    }

    @Override
    public int hashCode() {
        return key.hashCode();
    }

    @Override
    public String toString() {

            throws ArtifactMetadataRetrievalException {
        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);

        Set<Plugin> plugins;

        // NOTE: The upper-case packaging name is intentional, that's a special hinting mode used for certain tests
        if ("JAR".equals(packaging)) {
            plugins = new LinkedHashSet<>();

            plugins.add(newPlugin("maven-compiler-plugin", "compile", "testCompile"));

    }

    private PluginInfo extractPluginInfo(Artifact artifact) {
        // sanity: jar, no classifier and file exists
        if (artifact != null
                && "jar".equals(artifact.getExtension())
                && "".equals(artifact.getClassifier())
                && artifact.getPath() != null) {
            Path artifactPath = artifact.getPath();
            if (Files.isRegularFile(artifactPath)) {

        if (startWith != null) {
            Xpp3Dom startWithNode = (Xpp3Dom) startWith.getNode();
            for (; filteredIndex < children.size(); filteredIndex++) {
                if (startWithNode.equals(children.get(filteredIndex))) {
                    filteredIndex++;
                    break;
                }
            }
        }
        this.test = test;
        if (reverse) {

                        PluginValidationManager.IssueLocality.EXTERNAL, mavenSession, mojoDescriptor, mojoClass, m));
    }

    private boolean isDeprecated(Parameter parameter) {
        return Objects.equals(
                        org.apache.maven.artifact.repository.ArtifactRepository.class.getName(), parameter.getType())
                && DEPRECATED_CORE_PARAMETERS.containsKey(parameter.getDefaultValue());
    }

                sb.append("] ");
                sb.append(problem.getMessage());
                String loc = Stream.of(
                                problem.getModelId().equals(modelId) ? problem.getModelId() : "",
                                problem.getModelId().equals(modelId) ? problem.getSource() : "",
                                problem.getLineNumber() > 0 ? "line " + problem.getLineNumber() : "",

        boolean unknown = false;
        for (PathType type : types) {
            if (filter.test(type)) {
                if (JavaPathType.CLASSES.equals(type)) {
                    classes = true;
                } else if (JavaPathType.MODULES.equals(type)) {
                    modules = true;
                } else {
                    unknown = true;
                }
                if (selected == null) {

                reverseValue = true;
                propValue = propValue.substring(1);
            }

            // we have a value, so it has to match the system value...
            return reverseValue != propValue.equals(sysValue);
        } else {
            return reverseName != (sysValue != null && !sysValue.isEmpty());
        }
    }

    @Override