PluginContainer target, 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) {

        // one by one, and try to find a matching prefix.
        if (result == null && build != null) {
            result = resolveFromProject(request, build.getPlugins());
            if (result == null && management != null) {
                result = resolveFromProject(request, management.getPlugins());
            }
        }

        if (result == null) {
            throw new NoPluginFoundForPrefixException(

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

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

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

        return result;
    }

                    plugin.setConfiguration(new Xpp3Dom(configuration));
                }
                extensionPlugins.add(plugin);
            }

            for (Plugin plugin : build.getPlugins()) {
                if (plugin.isExtensions()) {
                    extensionPlugins.add(plugin);
                }
            }
        }

        if (extensionPlugins.isEmpty()) {

    }

    public boolean merge( Metadata sourceMetadata )
    {
        boolean changed = false;

        for ( Plugin plugin : sourceMetadata.getPlugins() )
        {
            boolean found = false;

            for ( Plugin preExisting : getPlugins() )
            {
                if ( java.util.Objects.equals( preExisting.getPrefix(), plugin.getPrefix() ) )
                {
                    found = true;

        Plugin pluginInPom = findPlugin(plugin, project.getBuildPlugins());

        if (pluginInPom == null && project.getPluginManagement() != null) {
            pluginInPom = findPlugin(plugin, project.getPluginManagement().getPlugins());
        }

        if (pluginInPom != null) {
            if (plugin.getVersion() == null) {
                plugin.setVersion(pluginInPom.getVersion());
            }

        Plugin plugin = new Plugin();
        plugin.setGroupId("org.apache.maven.test.MavenExecutionPlan");
        plugin.setArtifactId("stub-plugin-" + phaseName);
        descriptor.setPlugin(plugin);
        descriptor.setArtifactId("artifact." + phaseName);
        mojoDescriptor.setPluginDescriptor(descriptor);
        mojoDescriptor.setThreadSafe(threadSafe);
        return mojoDescriptor;
    }

            }
        }

        private void visit(BuildBase build) {
            if (build != null) {
                String org, val;
                // Plugins
                for (Plugin plugin : build.getPlugins()) {
                    visit(plugin);
                }
                // PluginManagement
                visit(build.getPluginManagement());
                // DefaultGoal

                        false);
            }

            Build build = project.getModel().getDelegate().getBuild();
            if (build != null) {
                for (Plugin plugin : build.getPlugins()) {
                    addEdge(
                            projectMap,
                            vertexMap,
                            project,
                            projectVertex,

        this.requiredJavaVersion = requiredJavaVersion;
    }

    public String getRequiredJavaVersion() {
        return requiredJavaVersion;
    }

    public void setPlugin(Plugin plugin) {
        this.plugin = plugin;
    }

    public Plugin getPlugin() {
        return plugin;
    }

    public Artifact getPluginArtifact() {
        return pluginArtifact;
    }