* Gets the class realm exposing the Maven 4 API. This is basically a restricted view on the Maven core realm.
     *
     * @return The class realm exposing the Maven API, never {@code null}.
     */
    ClassRealm getMaven4ApiRealm();

    /**
     * Creates a new class realm for the specified project and its build extensions.
     *
     * @param model The model of the project for which to create a realm, must not be {@code null}.

                }
            }
        }
    }

    @Override
    public ClassRealm getMavenApiRealm() {
        return mavenApiRealm;
    }

    @Override
    public ClassRealm getMaven4ApiRealm() {
        return maven4ApiRealm;
    }

    /**
     * Creates a new class realm with the specified parent and imports.
     *

        if (projectRealm != null) {
            foreignImports.put("", projectRealm);
        } else {
            foreignImports.put(
                    "", v4api ? classRealmManager.getMaven4ApiRealm() : classRealmManager.getMavenApiRealm());
        }

        if (parent != null && imports != null) {
            for (String parentImport : imports) {
                foreignImports.put(parentImport, parent);