*
 * @see Nullable
 * @since 4.0.0
 */
@Experimental
@Documented
@Retention(RetentionPolicy.CLASS)
@Target({ElementType.FIELD, ElementType.PARAMETER, ElementType.METHOD})

                (File) null);
    }

    @Override
    public void registerListener(@Nonnull Listener listener) {
        listeners.add(nonNull(listener));
    }

    @Override
    public void unregisterListener(@Nonnull Listener listener) {
        listeners.remove(nonNull(listener));
    }

    @Nonnull
    @Override
    public Collection<Listener> getListeners() {

     */
    @Nonnull
    default SettingsBuilderResult build(
            @Nonnull Session session,
            @Nonnull Source globalSettingsSource,
            @Nonnull Source projectSettingsSource,
            @Nonnull Source userSettingsSource) {
        return build(
                SettingsBuilderRequest.build(session, globalSettingsSource, projectSettingsSource, userSettingsSource));
    }

    /**

        return read(reader, true);
    }

    @Nonnull
    default T read(@Nonnull Reader reader, boolean strict) throws XmlReaderException {
        return read(XmlReaderRequest.builder().reader(reader).strict(strict).build());
    }

    @Nonnull
    T read(@Nonnull XmlReaderRequest request) throws XmlReaderException;

    default void write(@Nonnull T content, @Nonnull Path path) throws XmlWriterException {

        return project;
    }

    @Nonnull
    @Override
    public String getGroupId() {
        return project.getGroupId();
    }

    @Nonnull
    @Override
    public String getArtifactId() {
        return project.getArtifactId();
    }

    @Nonnull
    @Override
    public String getVersion() {
        return project.getVersion();
    }

    @Nonnull
    @Override

     */
    @Nonnull
    Optional<Source> getUserSettingsSource();

    @Nonnull
    static SettingsBuilderRequest build(
            @Nonnull Session session, @Nonnull Source globalSettingsSource, @Nonnull Source userSettingsSource) {
        return build(session, globalSettingsSource, null, userSettingsSource);
    }

    @Nonnull
    static SettingsBuilderRequest build(

          <item index="5" class="java.lang.String" itemvalue="io.reactivex.annotations.NonNull" />
          <item index="6" class="java.lang.String" itemvalue="io.reactivex.rxjava3.annotations.NonNull" />
          <item index="7" class="java.lang.String" itemvalue="jakarta.annotation.Nonnull" />
          <item index="8" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />

        COLLECT,
        FLATTEN,
        RESOLVE
    }

    @Nonnull
    Session getSession();

    @Nonnull
    RequestType getRequestType();

    @Nonnull
    Optional<Project> getProject();

    @Nonnull
    Optional<Artifact> getRootArtifact();

    @Nonnull
    Optional<DependencyCoordinate> getRoot();

    @Nonnull
    Collection<DependencyCoordinate> getDependencies();

    @Nonnull

@Immutable
public interface ArtifactInstallerRequest {

    @Nonnull
    Session getSession();

    @Nonnull
    Collection<Artifact> getArtifacts();

    @Nonnull
    static ArtifactInstallerRequestBuilder builder() {
        return new ArtifactInstallerRequestBuilder();
    }

    @Nonnull
    static ArtifactInstallerRequest build(Session session, Collection<Artifact> artifacts) {
        return builder()

      @Override
      public Iterator<Entry<Class<? extends @NonNull B>, B>> iterator() {
        return new TransformedIterator<
            Entry<Class<? extends @NonNull B>, B>, Entry<Class<? extends @NonNull B>, B>>(
            delegate().iterator()) {
          @Override
          Entry<Class<? extends @NonNull B>, B> transform(
              Entry<Class<? extends @NonNull B>, B> from) {
            return checkedEntry(from);