return getMavenSession().getSettings().getDelegate();
    }

    @Nonnull
    @Override
    public Collection<ToolchainModel> getToolchains() {
        return getMavenSession().getRequest().getToolchains().values().stream()
                .flatMap(Collection::stream)
                .map(org.apache.maven.toolchain.model.ToolchainModel::getDelegate)
                .toList();
    }

    @Nonnull

                .servers(request.getServers().stream().map(Server::getDelegate).collect(Collectors.toList()))
                .mirrors(request.getMirrors().stream().map(Mirror::getDelegate).collect(Collectors.toList()))
                .profiles(request.getProfiles().stream()
                        .map(Profile::getDelegate)

            XmlNode pomConfiguration = null;

            if (pluginExecution != null) {
                pomConfiguration = pluginExecution.getDelegate().getConfiguration();
            } else if (allowPluginLevelConfig) {
                pomConfiguration = plugin.getDelegate().getConfiguration();
            }

            XmlNode mojoConfiguration = mojoExecution.getConfiguration() != null

    List<V> getListDelegate() {
      return (List<V>) getDelegate();
    }

    @Override
    public boolean addAll(int index, Collection<? extends V> c) {
      if (c.isEmpty()) {
        return false;
      }
      int oldSize = size(); // calls refreshIfEmpty
      boolean changed = getListDelegate().addAll(index, c);
      if (changed) {
        int newSize = getDelegate().size();
        totalSize += newSize - oldSize;

    }

    public BaseObject(Object delegate, ChildrenTracking parent) {
        this.delegate = requireNonNull(delegate, "delegate cannot be null");
        this.childrenTracking = parent;
    }

    public Object getDelegate() {
        return delegate;
    }

    public void update(Object newDelegate) {
        if (delegate != newDelegate) {
            if (childrenTracking != null) {

    }

    public BaseObject(Object delegate, ChildrenTracking parent) {
        this.delegate = requireNonNull(delegate, "delegate cannot be null");
        this.childrenTracking = parent;
    }

    public Object getDelegate() {
        return delegate;
    }

    public void update(Object newDelegate) {
        if (delegate != newDelegate) {
            if (childrenTracking != null) {

        // Convert through DefaultSourceRoot to ensure targetPath is preserved
        DefaultSourceRoot sourceRootFromResource =
                new DefaultSourceRoot(project.getBaseDirectory(), ProjectScope.MAIN, resourceWithTarget.getDelegate());

        project.addSourceRoot(sourceRootFromResource);

        // Get resources - this creates ConnectedResource instances
        List<Resource> resources = project.getResources();

                            original.getId(),
                            lifecycle.getId());
                }
            }
            if (lifecycle.getDelegate() != null) {
                for (org.apache.maven.api.Lifecycle.Alias alias :
                        lifecycle.getDelegate().aliases()) {
                    Lifecycle original = phaseToLifecycleMap.put(alias.v3Phase(), lifecycle);

    }

    public BaseObject(Object delegate, ChildrenTracking parent) {
        this.delegate = requireNonNull(delegate, "delegate cannot be null");
        this.childrenTracking = parent;
    }

    public Object getDelegate() {
        return delegate;
    }

    public void update(Object newDelegate) {
        if (delegate != newDelegate) {
            if (childrenTracking != null) {

        Objects.requireNonNull(toolchains, "toolchains cannot be null");

        try (Writer out = output) {
            new MavenToolchainsStaxWriter().write(out, toolchains.getDelegate());
        } catch (XMLStreamException e) {
            throw new IOException("Error writing toolchains", e);
        }
    }