import org.eclipse.sisu.PreDestroy;

import static java.util.Objects.requireNonNull;

/**
 * Maven internal component that bridges container "shut down" to {@link RepositorySystem#shutdown()}.
 *
 * @since 3.9.0
 */
@Named
@EagerSingleton
final class ResolverLifecycle {
    private final Provider<RepositorySystem> repositorySystemProvider;

    @Inject

     * {@code org.eclipse.aether.util.repository.ChainedLocalRepositoryManager}.
     * Default value: <code>null</code>, no chained LRM is used.
     *
     * @since 3.9.0
     */
    @Config
    public static final String MAVEN_REPO_LOCAL_TAIL = "maven.repo.local.tail";

    /**

     */
    private static final String FAMILY_ZOS = "z/os";

    /**
     * OS family that can be tested for. {@value}
     */
    private static final String FAMILY_OS390 = "os/390";

    /**
     * OS family that can be tested for. {@value}
     */
    private static final String FAMILY_OS400 = "os/400";

    /**
     * OpenJDK is reported to call MacOS X "Darwin"
     *

import static java.util.Objects.requireNonNull;

/**
 * A class building reverse tree using {@link CollectStepData} trace data provided in {@link RepositoryEvent}
 * events fired during collection.
 *
 * @since 3.9.0
 */
class ReverseTreeRepositoryListener extends AbstractRepositoryListener {
    @Override
    public void artifactResolved(RepositoryEvent event) {
        requireNonNull(event, "event cannot be null");