assertTrue(updateCheckManager.isUpdateRequired(metadata, remoteRepository, file));

        updateCheckManager.touch(metadata, remoteRepository, file);

        assertFalse(updateCheckManager.isUpdateRequired(metadata, remoteRepository, file));

        assertNotNull(updateCheckManager.readLastUpdated(
                touchFile, updateCheckManager.getMetadataKey(remoteRepository, file)));
    }

    @Test

     * @throws IllegalArgumentException if the list contains null repository entries
     */
    default List<RemoteRepository> validate(List<RemoteRepository> repositories) {
        if (repositories == null) {
            return null;
        }
        HashSet<RemoteRepository> set = new HashSet<>(repositories);
        if (repositories.size() != set.size()) {
            throw new IllegalArgumentException(

            private final List<RemoteRepository> repositories;

            @SuppressWarnings("checkstyle:ParameterNumber")
            DefaultVersionResolverRequest(
                    @Nonnull Session session,
                    @Nullable RequestTrace trace,
                    @Nonnull ArtifactCoordinates artifactCoordinates,
                    @Nullable List<RemoteRepository> repositories) {

            @Nullable
            private final List<RemoteRepository> repositories;

            DefaultArtifactResolverRequest(
                    @Nonnull Session session,
                    @Nullable RequestTrace trace,
                    @Nonnull Collection<? extends ArtifactCoordinates> coordinates,
                    @Nonnull List<RemoteRepository> repositories) {
                super(session, trace);

 * under the License.
 */
package org.apache.maven.api.services;

import java.util.List;
import java.util.Objects;

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

 * under the License.
 */
package org.apache.maven.api.services;

import java.nio.file.Path;
import java.util.List;
import java.util.Objects;
import java.util.Optional;

import org.apache.maven.api.RemoteRepository;
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;

        createArtifact(artifact, remoteRepository());

        return artifact;
    }

    protected void createLocalArtifact(Artifact artifact) throws Exception {
        createArtifact(artifact, localRepository());
    }

    protected void createRemoteArtifact(Artifact artifact) throws Exception {
        createArtifact(artifact, remoteRepository());
    }

    }

    private Versioning filterVersionsByRepositoryType(Versioning versioning, RemoteRepository remoteRepository) {
        if (remoteRepository == null) {
            return versioning;
        }

        Versioning filteredVersions = versioning.clone();

        for (String version : versioning.getVersions()) {
            if (!remoteRepository.getPolicy(ArtifactUtils.isSnapshot(version)).isEnabled()) {

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

import java.nio.file.Path;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Objects;

import org.apache.maven.api.RemoteRepository;
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;

                RepositorySystem repositorySystem,
                List<org.apache.maven.api.RemoteRepository> repositories) {
            super(session, repositorySystem, repositories, null, null, null);
        }

        @Override
        protected Session newSession(
                MavenSession mavenSession, List<org.apache.maven.api.RemoteRepository> repositories) {