import org.apache.maven.model.building.ModelProblemUtils;
import org.apache.maven.model.resolution.UnresolvableModelException;
import org.codehaus.plexus.util.StringUtils;
import org.eclipse.aether.RepositoryEvent;
import org.eclipse.aether.RepositoryEvent.EventType;
import org.eclipse.aether.RepositoryException;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.RequestTrace;
import org.eclipse.aether.artifact.Artifact;

    @Override
    public void artifactDeployed(RepositoryEvent event) {
        dispatcher.onEvent(event);
        delegate.artifactDeployed(event);
    }

    @Override
    public void artifactDeploying(RepositoryEvent event) {
        dispatcher.onEvent(event);
        delegate.artifactDeploying(event);
    }

    @Override
    public void artifactDescriptorInvalid(RepositoryEvent event) {
        dispatcher.onEvent(event);

    }

    public void artifactDeployed(RepositoryEvent event) {
        println("artifactDeployed", event.getArtifact() + " to " + event.getRepository());
    }

    public void artifactDeploying(RepositoryEvent event) {
        println("artifactDeploying", event.getArtifact() + " to " + event.getRepository());
    }

    public void artifactDescriptorInvalid(RepositoryEvent event) {
        println(

import java.util.Map;
import java.util.Objects;

import org.apache.maven.artifact.repository.metadata.Versioning;
import org.apache.maven.metadata.v4.MetadataStaxReader;
import org.eclipse.aether.RepositoryEvent;
import org.eclipse.aether.RepositoryEvent.EventType;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.RequestTrace;
import org.eclipse.aether.SyncContext;
import org.eclipse.aether.impl.MetadataResolver;

    @Override
    public void artifactInstalling(RepositoryEvent event) {
        logger.info("Installing {} to {}", event.getArtifact().getFile(), event.getFile());
    }

    @Override
    public void metadataInstalling(RepositoryEvent event) {
        logger.debug("Installing {} to {}", event.getMetadata(), event.getFile());
    }

    @Override
    public void metadataResolved(RepositoryEvent event) {

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository.internal;

import java.lang.reflect.Field;

import org.eclipse.aether.RepositoryEvent;
import org.eclipse.aether.RepositoryEvent.EventType;
import org.eclipse.aether.artifact.DefaultArtifact;
import org.eclipse.aether.impl.ArtifactDescriptorReader;
import org.eclipse.aether.impl.RepositoryEventDispatcher;

/**
 * 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");

import org.apache.maven.artifact.repository.metadata.Versioning;
import org.apache.maven.metadata.v4.MetadataStaxReader;
import org.eclipse.aether.RepositoryCache;
import org.eclipse.aether.RepositoryEvent;
import org.eclipse.aether.RepositoryEvent.EventType;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.RequestTrace;
import org.eclipse.aether.SyncContext;
import org.eclipse.aether.artifact.Artifact;

     * @see org.apache.maven.project.DependencyResolutionRequest
     * @see org.apache.maven.project.DependencyResolutionResult
     * @see org.apache.maven.execution.ExecutionEvent
     * @see org.eclipse.aether.RepositoryEvent
     */
    void onEvent(Object event) throws Exception;

    /**
     * Notifies the spy of Maven's termination, allowing it to free any resources allocated by it.
     */
    void close() throws Exception;