/**
 * 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");

        if (recordReverseTree) {
            repositoryListener = new ChainedRepositoryListener(repositoryListener, new ReverseTreeRepositoryListener());
        }
        sessionBuilder.setRepositoryListener(repositoryListener);

        // may be overridden
        String resolverDependencyManagerTransitivity = mergedProps.getOrDefault(