@Nonnull
    static ToolchainsBuilderRequest build(
            @Nonnull Session session, @Nullable Source globalToolchainsSource, @Nullable Source userToolchainsSource) {
        return builder()
                .session(nonNull(session, "session cannot be null"))
                .globalToolchainsSource(globalToolchainsSource)
                .userToolchainsSource(userToolchainsSource)
                .build();

                Dependency.Builder builder,
                Dependency target,
                Dependency source,
                boolean sourceDominant,
                Map<Object, Object> context) {
            // optional flag is not managed
        }

        @Override
        protected void mergeDependency_Exclusions(
                Dependency.Builder builder,
                Dependency target,

 * is meant for exclusive consumption by the model builder and is opaque to the cache implementation. The cache key is
 * formed by a combination of group id, artifact id, version and tag. The first three components generally refer to the
 * identity of a model. The tag allows for further classification of the associated data on the sole discretion of the
 * model builder.
 *
 */
public interface ModelCache {

        return builder()
                .session(nonNull(session, "session cannot be null"))
                .source(nonNull(source, "source cannot be null"))
                .build();
    }

    @Nonnull
    static ProjectBuilderRequest build(@Nonnull Session session, @Nonnull Path path) {
        return builder()
                .session(nonNull(session, "session cannot be null"))

    /**
     * Updates the context class loader such that the container will search the project realm when the model builder
     * injects the lifecycle bindings from the packaging in the next step. The context class loader is to be reset by
     * the project builder when the project is fully assembled.
     *
     * @param project The project whose class realm should be selected, must not be {@code null}.
     */

    void testCompleteWiring() {
        SettingsBuilder builder = new DefaultSettingsBuilder();
        assertNotNull(builder);

        SettingsBuilderRequest request = SettingsBuilderRequest.builder()
                .session(session)
                .userSettingsSource(Source.fromPath(getSettings("settings-simple")))
                .build();

        SettingsBuilderResult result = builder.build(request);
        assertNotNull(result);

import org.apache.maven.plugin.PluginManagerException;
import org.apache.maven.plugin.PluginResolutionException;
import org.apache.maven.plugin.version.PluginVersionResolutionException;

/**
 * Processes events from the model builder while building the effective model for a {@link MavenProject} instance.
 *
 */
public class DefaultModelBuildingListener implements ModelBuildingListener {

    private final MavenProject project;

            @Nonnull Session session,
            @Nullable Source globalSettingsSource,
            @Nullable Source projectSettingsSource,
            @Nullable Source userSettingsSource) {
        return builder()
                .session(nonNull(session, "session cannot be null"))
                .globalSettingsSource(globalSettingsSource)
                .projectSettingsSource(projectSettingsSource)

    }

    private static final ExtensionDescriptorBuilder BUILDER = new ExtensionDescriptorBuilder();

    public static CoreExtensionEntry discoverFrom(ClassRealm loader) {
        Set<String> artifacts = new LinkedHashSet<>();
        Set<String> packages = new LinkedHashSet<>();

        try {
            Enumeration<URL> urls = loader.getResources(BUILDER.getExtensionDescriptorLocation());

import org.apache.maven.lifecycle.internal.TaskSegment;
import org.apache.maven.lifecycle.internal.builder.Builder;
import org.apache.maven.project.MavenProject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Builds the full lifecycle in weave-mode (phase by phase as opposed to project-by-project).
 * <p>
 * This builder uses a number of threads equal to the minimum of the degree of concurrency (which is the thread count