Artifact artifact = new DefaultArtifact("ut.simple:artifact:1.0");

        ArtifactRequest artifactRequest = new ArtifactRequest();
        artifactRequest.setArtifact(artifact);
        artifactRequest.addRepository(newTestRepository());

        ArtifactResult artifactResult = system.resolveArtifact(session, artifactRequest);
        checkArtifactResult(artifactResult, "artifact-1.0.jar");

    public List<ArtifactResult> resolveArtifacts(
            RepositorySystemSession session, Collection<? extends ArtifactRequest> requests)
            throws ArtifactResolutionException {
        List<ArtifactResult> results = new ArrayList<>();

        for (ArtifactRequest request : requests) {
            ArtifactResult result = new ArtifactResult(request);
            results.add(result);

            } else if (data instanceof ArtifactDescriptorRequest) {
                artifactDescriptorRequest = (ArtifactDescriptorRequest) data;
            } else if (data instanceof ArtifactRequest) {
                artifactRequest = (ArtifactRequest) data;
            } else if (data instanceof Plugin) {
                plugin = (Plugin) data;
            }
            trace = trace.getParent();
        }

import org.eclipse.aether.collection.CollectRequest;
import org.eclipse.aether.collection.CollectStepData;
import org.eclipse.aether.resolution.ArtifactDescriptorRequest;
import org.eclipse.aether.resolution.ArtifactRequest;
import org.eclipse.aether.resolution.DependencyRequest;

/**
 * Helper class to manage {@link RequestTrace} for better error logging.
 *
 * @since 3.9.9

        }

        if (!artifact.isResolved()) {
            ArtifactResult result;

            try {
                ArtifactRequest artifactRequest = new ArtifactRequest();
                artifactRequest.setArtifact(RepositoryUtils.toArtifact(artifact));
                artifactRequest.setRepositories(RepositoryUtils.toRepos(remoteRepositories));

            throws UnresolvableModelException {
        Artifact pomArtifact = new DefaultArtifact(groupId, artifactId, "", "pom", version);

        try {
            ArtifactRequest request = new ArtifactRequest(pomArtifact, repositories, context);
            request.setTrace(trace);
            pomArtifact = resolver.resolveArtifact(session, request).getArtifact();
        } catch (ArtifactResolutionException e) {

                throw new ArtifactDescriptorException(result);
            }

            ArtifactResult resolveResult;
            try {
                ArtifactRequest resolveRequest =
                        new ArtifactRequest(pomArtifact, request.getRepositories(), request.getRequestContext());
                resolveRequest.setTrace(trace);