if (tasks.isEmpty()
                && (rootProject.getDefaultGoal() != null
                        && !rootProject.getDefaultGoal().isEmpty())) {
            tasks = Stream.of(rootProject.getDefaultGoal().split("\\s+"))
                    .filter(g -> !g.isEmpty())
                    .collect(Collectors.toList());
        }

                    visit(plugin);
                }
                // PluginManagement
                visit(build.getPluginManagement());
                // DefaultGoal
                org = build.getDefaultGoal();
                val = interpolate(org);
                if (org != val) {
                    build.setDefaultGoal(val);
                }
                // Resources

        return executionRoot;
    }

    public void setExecutionRoot(boolean executionRoot) {
        this.executionRoot = executionRoot;
    }

    public String getDefaultGoal() {
        return getBuild() != null ? getBuild().getDefaultGoal() : null;
    }

    public Plugin getPlugin(String pluginKey) {
        org.apache.maven.api.model.Plugin plugin =

    protected void mergeBuildBase_DefaultGoal(
            BuildBase target, BuildBase source, boolean sourceDominant, Map<Object, Object> context) {
        String src = source.getDefaultGoal();
        if (src != null) {
            if (sourceDominant || target.getDefaultGoal() == null) {
                target.setDefaultGoal(src);
                target.setLocation("defaultGoal", source.getLocation("defaultGoal"));
            }
        }