private WebApiUtil() {
    }

    public static void setObject(final String name, final Object value) {
        LaRequestUtil.getOptionalRequest().ifPresent(req -> req.setAttribute(name, value));
    }

    @SuppressWarnings("unchecked")
    public static <T> T getObject(final String name) {
        return LaRequestUtil.getOptionalRequest().map(req -> (T) req.getAttribute(name)).orElse(null);

    def "invokes method on first delegate that has a property with closure value"() {
        def obj1 = Mock(DynamicObject)
        def obj2 = Mock(DynamicObject)
        def obj3 = Mock(DynamicObject)
        obj.setObjects(obj1, obj2, obj3)

        when:
        def result = obj.invokeMethod("m", ["value"] as Object[])

        then:
        result == "result"

        and:

    }

    def "get property returns result from first delegate that has the property"() {
        def obj1 = Mock(DynamicObject)
        def obj2 = Mock(DynamicObject)
        def obj3 = Mock(DynamicObject)
        obj.setObjects(obj1, obj2, obj3)

        when:
        def result = obj.getProperty("p")

        then:
        result == 12

        and:
        1 * obj1.tryGetProperty("p") >> DynamicInvokeResult.notFound()

    private final Integer buildNumber;

    RemoteSnapshotMetadataGenerator(RepositorySystemSession session, DeployRequest request) {
        timestamp = (Date) ConfigUtils.getObject(session, new Date(), "maven.startTime");
        Object bn = ConfigUtils.getObject(session, null, "maven.buildNumber");
        if (bn instanceof Integer) {
            this.buildNumber = (Integer) bn;
        } else if (bn instanceof String) {

    private final Integer buildNumber;

    RemoteSnapshotMetadataGenerator(RepositorySystemSession session, DeployRequest request) {
        timestamp = (Date) ConfigUtils.getObject(session, new Date(), "maven.startTime");
        Object bn = ConfigUtils.getObject(session, null, "maven.buildNumber");
        if (bn instanceof Integer) {
            this.buildNumber = (Integer) bn;
        } else if (bn instanceof String) {

            addedParent = true;
            delegates[idx++] = parent;
        }
        DynamicObject[] objects = new DynamicObject[idx];
        System.arraycopy(delegates, 0, objects, 0, idx);
        setObjects(objects);

        if (addedParent) {
            idx--;
            objects = new DynamicObject[idx];
            System.arraycopy(delegates, 0, objects, 0, idx);
            setObjectsForUpdate(objects);

    private final Date timestamp;

    LocalSnapshotMetadataGenerator(RepositorySystemSession session, InstallRequest request) {
        timestamp = (Date) ConfigUtils.getObject(session, new Date(), "maven.startTime");

        snapshots = new LinkedHashMap<>();
    }

    @Override
    public Collection<? extends Metadata> prepare(Collection<? extends Artifact> artifacts) {

    private static final DynamicObject[] NONE = new DynamicObject[0];

    private DynamicObject[] objects = NONE;
    private DynamicObject[] updateObjects = NONE;

    protected void setObjects(DynamicObject... objects) {
        this.objects = objects;
        updateObjects = objects;
    }

    protected void setObjectsForUpdate(DynamicObject... objects) {
        this.updateObjects = objects;
    }

    private final Date timestamp;

    LocalSnapshotMetadataGenerator(RepositorySystemSession session, InstallRequest request) {
        timestamp = (Date) ConfigUtils.getObject(session, new Date(), "maven.startTime");

        snapshots = new LinkedHashMap<>();
    }

    @Override
    public Collection<? extends Metadata> prepare(Collection<? extends Artifact> artifacts) {

        versions = new LinkedHashMap<>();
        processedVersions = new LinkedHashMap<>();
        timestamp = (Date) ConfigUtils.getObject(session, new Date(), "maven.startTime");

        /*
         * NOTE: This should be considered a quirk to support interop with Maven's legacy ArtifactDeployer which