merger.mergeModelBase(builder, model, profile);

                if (profile.getBuild() != null) {
                    Build build = model.getBuild() != null ? model.getBuild() : Build.newInstance();
                    Build.Builder bbuilder = Build.newBuilder(build);
                    merger.mergeBuildBase(bbuilder, build, profile.getBuild());
                    builder.build(bbuilder.build());
                }

        private static final String PLUGIN_MANAGEMENT = "plugin-management";

        public Model merge(Model target, Model source) {
            Build targetBuild = target.getBuild();
            if (targetBuild == null) {
                targetBuild = Build.newInstance();
            }

            Map<Object, Object> context =

            cur.getExecutions().forEach(e -> execs.put(e.getId(), e));
            plugin.getExecutions().forEach(e -> {
                int i = 0;
                String id = e.getId();
                while (execs.putIfAbsent(id, e.withId(id)) != null) {
                    id = e.getId() + "-" + (++i);
                }
            });

            if (project.hasLifecyclePhase("test-compile")) {
                return new File(project.getBuild().getTestOutputDirectory());
            }
        } else {
            String type = artifact.getProperty("type", "");
            File outputDirectory = new File(project.getBuild().getOutputDirectory());

            // Check if the project is being built during this session, and if we can expect any output.

        File pom1 = new File(pom0Basedir, "p1/pom.xml");

        getProjectWithDependencies(pom0);
        MavenProject project1 = getProjectWithDependencies(pom1);

        Map pluginMap = project1.getBuild().getPluginsAsMap();
        Plugin compilerPlugin = (Plugin) pluginMap.get("org.apache.maven.plugins:maven-compiler-plugin");

        assertNotNull(compilerPlugin);

    @Override
    public Model expandPluginConfiguration(Model model, ModelBuilderRequest request, ModelProblemCollector problems) {
        Build build = model.getBuild();
        if (build != null) {
            build = build.withPlugins(expandPlugin(build.getPlugins()));
            PluginManagement pluginManagement = build.getPluginManagement();
            if (pluginManagement != null) {

        // Value taken from super model
        // ----------------------------------------------------------------------

        assertEquals("4.0.0", project4.getModelVersion());

        Build build = project4.getBuild();
        List<Plugin> plugins = build.getPlugins();

        Map<String, Integer> validPluginCounts = new HashMap<>();

        String testPluginArtifactId = "maven-compiler-plugin";

    /**
     * ManagementModelMerger
     */
    protected static class ManagementModelMerger extends MavenModelMerger {

        public Model mergeManagedBuildPlugins(Model model) {
            Build build = model.getBuild();
            if (build != null) {
                PluginManagement pluginManagement = build.getPluginManagement();
                if (pluginManagement != null) {

    public Model alignToBaseDirectory(Model model, Path basedir, ModelBuilderRequest request) {
        if (model == null || basedir == null) {
            return model;
        }

        Build build = model.getBuild();
        Build newBuild = null;
        if (build != null) {
            newBuild = Build.newBuilder(build)
                    .directory(alignToBaseDirectory(build.getDirectory(), basedir))

        assertEquals(4, executions.size());
        assertEquals("default-resources", executions.get(0).getId());
        assertEquals("default-testResources", executions.get(1).getId());
        assertEquals("test-1", executions.get(2).getId());
        assertEquals("test-2", executions.get(3).getId());
    }

    @Test
    void testPluginDeclarationsRetainPomOrderAfterInjectionOfDefaultPlugins() throws Exception {