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

        ArtifactCoordinates coords2 = mock(ArtifactCoordinates.class);
        RemoteRepository repo1 = mock(RemoteRepository.class);
        RemoteRepository repo2 = mock(RemoteRepository.class);

        List<RemoteRepository> repositories1 = Arrays.asList(repo1, repo2);
        List<RemoteRepository> repositories2 = Arrays.asList(repo1, repo2);

    }

    public static List<RemoteRepository> toRepos(List<ArtifactRepository> repos) {
        return Optional.ofNullable(repos).orElse(Collections.emptyList()).stream()
                .map(RepositoryUtils::toRepo)
                .collect(Collectors.toList());
    }

    public static RemoteRepository toRepo(ArtifactRepository repo) {
        RemoteRepository result = null;
        if (repo != null) {

     * @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);

        return new DefaultArtifact(artifact.getGroupId(), artifact.getArtifactId(), "pom", artifact.getVersion());
    }

    public static RemoteRepository toRemoteRepository(Repository repository) {
        RemoteRepository.Builder builder =
                new RemoteRepository.Builder(repository.getId(), repository.getLayout(), repository.getUrl());
        builder.setSnapshotPolicy(toRepositoryPolicy(repository.getSnapshots()));

        private final List<RemoteRepository> repositories;

        private final Set<String> collect;

        private final Set<String> resolve;

        private boolean aggregating;

        private final int hashCode;

        public CacheKey(
                MavenProject project,
                List<RemoteRepository> repositories,
                Collection<String> scopesToCollect,

            artifactDeployer.deploy(file, artifact, remoteRepository(), localRepository());

            ArtifactRepository remoteRepository = remoteRepository();
            File deployedFile = new File(remoteRepository.getBasedir(), remoteRepository.pathOf(artifact));
            assertTrue(deployedFile.exists(), "Expected " + deployedFile + ".exists() to return true");

                null);
    }

    private List<RemoteRepository> getRemoteRepositories() throws InvalidRepositoryException {
        final File repoDir = new File(getBasedir(), "src/test/remote-repo").getAbsoluteFile();
        final RemoteRepository remoteRepository = new RemoteRepository.Builder(
                        MavenRepositorySystem.DEFAULT_REMOTE_REPO_ID,