* graph construction.
 * <p>
 * Extend this class {@code createXXX()} methods and override to customize, if needed. The contract of this class makes
 * sure that these (potentially overridden) methods are invoked only once, and instance created by those methods are
 * memorized and kept as long as supplier instance is kept open.
 * <p>

        private final Lookup lookup;

        @Inject
        ReactorReaderSpy(Lookup lookup) {
            this.lookup = lookup;
        }

        @Override
        public void init(Context context) throws Exception {}

        @Override
        @SuppressWarnings("checkstyle:MissingSwitchDefault")
        public void onEvent(Object event) throws Exception {
            if (event instanceof ExecutionEvent) {

import org.eclipse.aether.resolution.ArtifactResult;

import static org.apache.maven.internal.impl.Utils.nonNull;

@Named
@Singleton
public class DefaultArtifactResolver implements ArtifactResolver {

    @Override
    public ArtifactResolverResult resolve(ArtifactResolverRequest request)
            throws ArtifactResolverException, IllegalArgumentException {
        nonNull(request, "request");

        this.transformer = transformer;
        this.versionParser = versionParser;
    }

    @Override
    public ModelTransformerContextBuilder newTransformerContextBuilder() {
        return new DefaultModelTransformerContextBuilder(this);
    }

    @Override
    public ModelBuilderResult build(ModelBuilderRequest request) throws ModelBuilderException {

     * </ul>
     * Note: Project properties contains properties injected from profiles, if applicable. Their precedence is
     * {@code profile > project}, hence active profile property may override project property.
     * <p>
     * The caller of this method should decide whether there is a project in scope (hence, a project instance
     * needs to be passed) or not.
     *

            }

            @Override
            public int getValidationLevel() {
                return validationLevel;
            }

            @Override
            public boolean isTwoPhaseBuilding() {
                return twoPhaseBuilding;
            }

            @Override
            public boolean isLocationTracking() {

        this.cache = requireNonNull(cache);
    }

    @Override
    @SuppressWarnings({"unchecked"})
    public <T> T computeIfAbsent(String groupId, String artifactId, String version, String tag, Supplier<T> data) {
        return (T) computeIfAbsent(new GavCacheKey(groupId, artifactId, version, tag), data);
    }

    @Override
    @SuppressWarnings({"unchecked"})

                }

                @Override
                public Path getPath() {
                    return null;
                }

                @Override
                public InputStream openStream() throws IOException {
                    return modelSource.getInputStream();
                }

                @Override
                public String getLocation() {

    @Override
    public Path getPathForLocalArtifact(Session session, LocalRepository local, Artifact artifact) {
        InternalSession s = InternalSession.from(session);
        String path = getManager(s, local).getPathForLocalArtifact(s.toArtifact(artifact));
        return local.getPath().resolve(path);
    }

    @Override
    public Path getPathForRemoteArtifact(

 * constructed instance. To create session out of builder, use {@link SessionBuilder#build()}. For proper closing
 * of sessions, use {@link CloseableSession#close()} method on built instance(s).
 * <p>
 * Extend this class and override methods to customize, if needed.
 *
 * @since 4.0.0
 */
public class MavenSessionBuilderSupplier implements Supplier<SessionBuilder> {
    protected final RepositorySystem repositorySystem;