private Artifact artifact;

    public SnapshotArtifactRepositoryMetadata(Artifact artifact) {
        super(createMetadata(artifact, null));
        this.artifact = artifact;
    }

    public SnapshotArtifactRepositoryMetadata(Artifact artifact, Snapshot snapshot) {
        super(createMetadata(artifact, createVersioning(snapshot)));
        this.artifact = artifact;
    }

    @Override

    //
    /**
     *
     * @param artifact an artifact
     * @return found artifact
     * @since 3.0-alpha-3
     */
    Artifact find(Artifact artifact);

    /**
     * Finds the versions of the specified artifact that are available in this repository.
     *
     * @param artifact The artifact whose available versions should be determined, must not be {@code null}.

import java.util.Objects;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.ArtifactUtils;
import org.apache.maven.artifact.metadata.ResolutionGroup;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.repository.ArtifactRepositoryPolicy;

/**
 * DefaultMavenMetadataCache
 */
@Named
@Singleton

 */
package org.apache.maven.artifact.resolver;

import javax.inject.Inject;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;

import org.apache.maven.artifact.AbstractArtifactComponentTestCase;
import org.apache.maven.artifact.Artifact;

    public ResolutionGroup(
            Artifact pomArtifact, Set<Artifact> artifacts, List<ArtifactRepository> resolutionRepositories) {
        this(pomArtifact, null, artifacts, null, resolutionRepositories);
    }

    public ResolutionGroup(
            Artifact pomArtifact,
            Artifact relocatedArtifact,
            Set<Artifact> artifacts,
            Map<String, Artifact> managedVersions,

public class ArtifactRepositoryMetadata extends AbstractRepositoryMetadata {
    private Artifact artifact;

    public ArtifactRepositoryMetadata(Artifact artifact) {
        this(artifact, null);
    }

    public ArtifactRepositoryMetadata(Artifact artifact, Versioning versioning) {
        super(createMetadata(artifact, versioning));
        this.artifact = artifact;
    }

    @Override
    public boolean storedInGroupDirectory() {

            boolean optional);

    Artifact createBuildArtifact(String groupId, String artifactId, String version, String packaging);

    Artifact createProjectArtifact(String groupId, String artifactId, String version);

    Artifact createParentArtifact(String groupId, String artifactId, String version);

    Artifact createPluginArtifact(String groupId, String artifactId, VersionRange versionRange);

    /**
     * Retrieves the file system path associated with a specific artifact.
     *
     * @param artifact The {@link Artifact} whose path is to be retrieved.
     * @return The {@link Path} to the artifact, or {@code null} if unavailable.
     */
    @Nullable
    Path getPath(@Nonnull Artifact artifact);

    /**
     * Returns a mapping of artifact coordinates to their corresponding resolution results.
     *

        this(message, cause, null);
    }

    public ArtifactMetadataRetrievalException(String message, Throwable cause, Artifact artifact) {
        super(message, cause);
        this.artifact = artifact;
    }

    public Artifact getArtifact() {
        return artifact;
    }

import java.util.List;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.deployer.ArtifactDeploymentException;
import org.apache.maven.artifact.installer.ArtifactInstallationException;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.repository.RepositoryRequest;
import org.apache.maven.artifact.resolver.ArtifactNotFoundException;