toolchain = new ToolchainModel();
        toolchain.setType("TYPE");
        toolchain.setProvides(props);
        PersistedToolchains globalResult = new PersistedToolchains();
        globalResult.setToolchains(Collections.singletonList(toolchain));

        ToolchainsBuildingRequest request = new DefaultToolchainsBuildingRequest();
        request.setUserToolchainsSource(

                new DefaultModelPathTranslator(new DefaultPathTranslator()),
                new DefaultModelUrlNormalizer(new DefaultUrlNormalizer()),
                new DefaultSuperPomProvider(modelProcessor),
                new DefaultInheritanceAssembler(),
                new DefaultProfileSelector(),
                new DefaultProfileInjector(),
                new DefaultPluginManagementInjector(),

                new DefaultModelPathTranslator(new DefaultPathTranslator()),
                new DefaultModelUrlNormalizer(new DefaultUrlNormalizer()),
                new DefaultSuperPomProvider(modelProcessor),
                new DefaultInheritanceAssembler(),
                new DefaultProfileSelector(),
                new DefaultProfileInjector(),
                new DefaultPluginManagementInjector(),

        assertEquals(
                createSet(new Object[] {a.artifact, b.artifact, c.artifact, d.artifact}),
                res.getArtifacts(),
                "Check artifact list");

        ArtifactFilter filter = new ExclusionSetFilter(new String[] {"b"});
        res = collect(a, filter);
        assertEquals(createSet(new Object[] {a.artifact, c.artifact}), res.getArtifacts(), "Check artifact list");
    }

                throw new InvalidVersionSpecificationException(
                        "Only fully-qualified sets allowed in multiple set scenario: " + spec);
            } else {
                version = new DefaultArtifactVersion(process);
                restrictions.add(Restriction.EVERYTHING);
            }
        }

        cached = new VersionRange(version, restrictions);

            boolean allowStatic) {
        List<T> result = new ArrayList<>();
        while (cls != null) {
            for (T element : extractor.apply(cls)) {
                if (element.isAnnotationPresent(annotationType)) {
                    if (!allowStatic && Modifier.isStatic(element.getModifiers())) {
                        throw new DIException(

            if (lrm != null && lrm.getRepository().getBasedir().equals(new File(repository.getBasedir()))) {
                return session;
            }
            newSession = new DefaultRepositorySystemSession(session);
        } else {
            newSession = new DefaultRepositorySystemSession(h -> false); // no close handle used
        }

            List<MetadataRequest> metadataReqs =
                    new ArrayList<>(request.getRepositories().size());

            metadataReqs.add(new MetadataRequest(metadata, null, request.getRequestContext()));

            for (RemoteRepository repository : request.getRepositories()) {
                MetadataRequest metadataRequest =
                        new MetadataRequest(metadata, repository, request.getRequestContext());

    public static final File USER_MAVEN_CONFIGURATION_HOME = new File(USER_HOME, ".m2");

    public static final File DEFAULT_USER_SETTINGS_FILE = new File(USER_MAVEN_CONFIGURATION_HOME, "settings.xml");

    public static final File DEFAULT_PROJECT_SETTINGS_FILE = new File(".mvn", "settings.xml");

    public static final File DEFAULT_GLOBAL_SETTINGS_FILE = new File(System.getProperty("maven.conf"), "settings.xml");

                : null;
        if (executionConfiguration == null) {
            executionConfiguration = new XmlNodeImpl("configuration");
        }

        XmlNode defaultConfiguration = getMojoConfiguration(mojoDescriptor);

        List<XmlNode> children = new ArrayList<>();
        if (mojoDescriptor.getParameters() != null) {
            for (Parameter parameter : mojoDescriptor.getParameters()) {