if (relocation.target == SENTINEL) {
                    String message = "The artifact " + original + " has been banned from resolution: "
                            + (relocation.global ? "User global ban" : "User project ban");
                    LOGGER.debug(message);
                    throw new ArtifactDescriptorException(artifactDescriptorResult, message);
                }
                Artifact result = new RelocatedArtifact(

        }
        return null;
    }

    public static class CycleDetectedException extends Exception {
        private final List<String> cycle;

        CycleDetectedException(String message, List<String> cycle) {
            super(message);
            this.cycle = cycle;
        }

        public List<String> getCycle() {
            return cycle;
        }

        @Override
        public String getMessage() {

@Experimental
public class DependencyResolverException extends MavenException {

    private static final long serialVersionUID = 1101171569179057614L;

    public DependencyResolverException(String message, Throwable cause) {
        super(message, cause);
    }

/**
 * Signals an internal error in Maven itself, e.g. a programming bug.
 *
 */
public class InternalErrorException extends MavenExecutionException {

    public InternalErrorException(String message, Throwable cause) {
        super(message, cause);
    }

/**
 * @since 4.0.0
 */
@Experimental
@Consumer
public class TransportProviderException extends MavenException {
    public TransportProviderException(String message, Throwable cause) {
        super(message, cause);
    }

 *
 */
public class CyclicDependencyException extends ArtifactResolutionException {
    private Artifact artifact;

    public CyclicDependencyException(String message, Artifact artifact) {
        super(message, artifact);
        this.artifact = artifact;
    }

    public Artifact getArtifact() {
        return artifact;
    }

    private String downloadUrl;

    protected ArtifactNotFoundException(
            String message, Artifact artifact, List<ArtifactRepository> remoteRepositories) {
        super(message, artifact, remoteRepositories);
    }

    public ArtifactNotFoundException(String message, Artifact artifact) {
        this(
                message,
                artifact.getGroupId(),
                artifact.getArtifactId(),

    /**
     * Creates a new problem with the specified message and exception.
     * Either {@code message} or {@code exception} is required
     *
     * @param message The message describing the problem, may be {@code null}.
     * @param severity The severity level of the problem, may be {@code null} to default to
     *            {@link org.apache.maven.building.Problem.Severity#ERROR}.

    private final String repositoryId;

    public InvalidRepositoryException(String message, String repositoryId, MalformedURLException cause) {
        super(message, cause);
        this.repositoryId = repositoryId;
    }

    protected InvalidRepositoryException(String message, String repositoryId, ComponentLookupException cause) {
        super(message, cause);
        this.repositoryId = repositoryId;
    }

    @Deprecated

 * Currently, this modification would create compatibility problems for existing plugins.
 */
public class DuplicateArtifactAttachmentException extends RuntimeException {

    private static final String DEFAULT_MESSAGE = "Duplicate artifact attachment detected.";

    private Artifact artifact;

    private final MavenProject project;

    public DuplicateArtifactAttachmentException(MavenProject project, Artifact artifact) {