.installationToolchainsSource(installationToolchainsFile)
                .userToolchainsSource(userToolchainsSource)
                .build();
    }

    @Nonnull
    static ToolchainsBuilderRequest build(
            @Nonnull ProtoSession session,
            @Nullable Path installationToolchainsFile,
            @Nullable Path userToolchainsPath) {
        return builder()

        ClassRealm projectRealm;

        List<Plugin> extensionPlugins = new ArrayList<>();

        Build build = model.getBuild();

        if (build != null) {
            for (Extension extension : build.getExtensions()) {
                Plugin plugin = new Plugin();
                plugin.setGroupId(extension.getGroupId());

    <toolchains-maven-plugin.version>4.5.0</toolchains-maven-plugin.version>
    <truth.version>1.4.5</truth.version>
    <project.build.outputTimestamp>2025-01-02T00:00:00Z</project.build.outputTimestamp>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <!--
    Some tests need reflective access to the internals of these packages. It is only the

    <toolchains-maven-plugin.version>4.5.0</toolchains-maven-plugin.version>
    <truth.version>1.4.5</truth.version>
    <project.build.outputTimestamp>2025-01-02T00:00:00Z</project.build.outputTimestamp>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <!--
    Some tests need reflective access to the internals of these packages. It is only the

    void assembleModelInheritance(Model child, Model parent);

    void assembleBuildInheritance(Build childBuild, Build parentBuild, boolean handleAsInheritance);

    void copyModel(Model dest, Model source);

    <properties>
        <codehaus.groupId>org.codehaus.mojo</codehaus.groupId>
    </properties>

    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>${codehaus.groupId}</groupId>
                    <artifactId>build-helper-maven-plugin</artifactId>
                    <version>3.2.0</version>
                    <executions>

     * more values and build again.
     *
     * <p><b>Performance note:</b> the returned array is backed by the same array as the builder, so
     * no data is copied as part of this step, but this may occupy more memory than strictly
     * necessary. To copy the data to a right-sized backing array, use {@code .build().trimmed()}.
     */
    public ImmutableLongArray build() {

     * more values and build again.
     *
     * <p><b>Performance note:</b> the returned array is backed by the same array as the builder, so
     * no data is copied as part of this step, but this may occupy more memory than strictly
     * necessary. To copy the data to a right-sized backing array, use {@code .build().trimmed()}.
     */
    public ImmutableIntArray build() {

            for (Artifact main : mains) {
                result.remove(main);
                if (deployBuildPom) {
                    // Add the main POM as a build POM with "build" classifier
                    result.add(new DefaultArtifact(
                            main.getGroupId(),
                            main.getArtifactId(),
                            BUILD_POM_CLASSIFIER,

     * artifacts that haven't been build yet.
     *
     * @param projects The projects whose dependencies should be resolved, may be {@code null}.
     * @param scopes   The dependency scopes that should be resolved, may be {@code null}.
     * @param session  The current build session, must not be {@code null}.