// just carry-on as-is
        if (recessive.getPlugins() != null && !recessive.getPlugins().isEmpty()) {
            metadata = metadata.withPlugins(new ArrayList<>(recessive.getPlugins()));
        }

        artifacts.clear();
    }

    private String getKey(String classifier, String extension) {

        Model.Builder builder = Model.newBuilder(model);

        Build build = model.getBuild();
        if (build != null) {
            List<Plugin> plugins = build.getPlugins();
            Map<Object, Plugin> normalized = new LinkedHashMap<>(plugins.size() * 2);

            for (Plugin plugin : plugins) {
                Object key = plugin.getKey();

                PluginContainer source,
                boolean sourceDominant,
                Map<Object, Object> context) {
            List<Plugin> src = source.getPlugins();
            if (!src.isEmpty()) {
                List<Plugin> tgt = target.getPlugins();

                Map<Object, Plugin> merged = new LinkedHashMap<>((src.size() + tgt.size()) * 2);

                for (Plugin element : tgt) {

                PluginContainer source,
                boolean sourceDominant,
                Map<Object, Object> context) {
            List<Plugin> src = source.getPlugins();
            if (!src.isEmpty()) {
                List<Plugin> tgt = target.getPlugins();
                Map<Object, Plugin> master = new LinkedHashMap<>(src.size() * 2);

                for (Plugin element : src) {

        }

        if (model != null) {
            Build build = model.getBuild();
            if (build != null) {
                for (Plugin plugin : build.getPlugins()) {
                    if (groupId.equals(plugin.getGroupId()) && artifactId.equals(plugin.getArtifactId())) {
                        return plugin;
                    }
                }

        }

        PluginManagement pluginManagement = project.getPluginManagement();
        if (pluginManagement != null) {
            for (Plugin plugin : pluginManagement.getPlugins()) {
                if (plugin.getVersion() == null) {
                    plugin.setVersion(versions.get(plugin.getKey()));
                    if (plugin.getVersion() == null) {

        if (type == null) {
            return Optional.empty();
        }
        return Optional.of(new DefaultPackaging(id, type, getPlugins(lifecycleMapping)));
    }

    private Map<String, PluginContainer> getPlugins(LifecycleMapping lifecycleMapping) {
        Map<String, PluginContainer> lfs = new HashMap<>();
        lifecycleMapping.getLifecycles().forEach((id, lifecycle) -> {

        addPluginMapping(goalPrefix, artifactId, artifactId);
    }

    public void addPluginMapping(String goalPrefix, String artifactId, String name) {
        List<Plugin> plugins = getMetadata().getPlugins();
        boolean found = false;
        for (Iterator<Plugin> i = plugins.iterator(); i.hasNext() && !found; ) {
            Plugin plugin = i.next();
            if (plugin.getPrefix().equals(goalPrefix)) {

        final PluginDescriptor descriptor = new PluginDescriptor();
        descriptor.setGroupId(plugin.getGroupId());
        descriptor.setArtifactId(plugin.getArtifactId());
        descriptor.setPlugin(plugin);
        descriptor.setVersion(plugin.getVersion());
        final MojoDescriptor mojoDescriptor = new MojoDescriptor();
        mojoDescriptor.setPluginDescriptor(descriptor);
        return mojoDescriptor;
    }

            Build build = request.getPom().getBuild();

            result = resolveFromProject(request, build.getPlugins());

            if (result == null && build.getPluginManagement() != null) {
                result = resolveFromProject(request, build.getPluginManagement().getPlugins());
            }
        }

        return result;
    }