/**
 * Partial identification of an {@link Artifact} in a Maven repository.
 * Each {@code ArtifactCoordinates} instance is basically a pointer to a file in the Maven repository,
 * except that the exact version may not be known yet.
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
public interface ArtifactCoordinates {
    /**
     * {@return the group identifier of the artifact}.
     */
    @Nonnull

                + getVersion();
    }

    /**
     * {@return the group identifier of the artifact}.
     *
     * @see ArtifactCoordinates#getGroupId()
     */
    @Nonnull
    String getGroupId();

    /**
     * {@return the identifier of the artifact}.
     *
     * @see ArtifactCoordinates#getArtifactId()
     */
    @Nonnull
    String getArtifactId();

    /**
     * {@return the version of the artifact}.

class RequestImplementationTest {

    @Test
    void testArtifactResolverRequestEquality() {
        Session session = mock(Session.class);
        ArtifactCoordinates coords1 = mock(ArtifactCoordinates.class);
        ArtifactCoordinates coords2 = mock(ArtifactCoordinates.class);
        RemoteRepository repo1 = mock(RemoteRepository.class);
        RemoteRepository repo2 = mock(RemoteRepository.class);

    @Nonnull
    ArtifactCoordinates getArtifactCoordinates();

    @Nonnull
    static VersionResolverRequest build(@Nonnull Session session, @Nonnull ArtifactCoordinates artifactCoordinates) {
        return builder()
                .session(requireNonNull(session, "session cannot be null"))
                .artifactCoordinates(requireNonNull(artifactCoordinates, "artifactCoordinates cannot be null"))
                .build();

         *
         * @param artifactCoordinates the artifact coordinates, must not be {@code null}
         * @return this builder, never {@code null}
         */
        public VersionResolverRequestBuilder artifactCoordinates(ArtifactCoordinates artifactCoordinates) {
            this.artifactCoordinates = artifactCoordinates;
            return this;
        }

        /**

    @Nonnull
    Collection<? extends ArtifactCoordinates> getCoordinates();

    @Nonnull
    static ArtifactResolverRequestBuilder builder() {
        return new ArtifactResolverRequestBuilder();
    }

    @Nonnull
    static ArtifactResolverRequest build(
            @Nonnull Session session, @Nonnull Collection<? extends ArtifactCoordinates> coordinates) {
        return builder()

     * @return dependency coordinates for the given artifact
     *
     * @see DependencyCoordinatesFactory#create(Session, ArtifactCoordinates)
     */
    @Nonnull
    DependencyCoordinates createDependencyCoordinates(@Nonnull ArtifactCoordinates coordinates);

    /**
     * Shortcut for {@code getService(DependencyFactory.class).create(...)}.
     *
     * @param dependency dependency for which to get the coordinates

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

import java.util.Objects;

import org.apache.maven.api.ArtifactCoordinates;
import org.apache.maven.api.Session;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Immutable;
import org.apache.maven.api.annotations.Nonnull;

 *
 * <p>{@link org.apache.maven.api.ArtifactCoordinates} instances are used to locate artifacts in a repository.
 * Each instance identifies an artifact or version range of artifacts in the Maven repository system.</p>
 *
 * <p>{@link org.apache.maven.api.Artifact} instances represent artifacts in the repository.
 * They are created when <dfn>resolving</dfn> an {@code ArtifactCoordinates} object. Resolving is the process

 */
package org.apache.maven.api.services;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Objects;

import org.apache.maven.api.ArtifactCoordinates;
import org.apache.maven.api.Dependency;
import org.apache.maven.api.Exclusion;
import org.apache.maven.api.Session;
import org.apache.maven.api.annotations.Experimental;