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);

        while (iterator.hasNext()) {
            RemoteRepository remoteRepository = iterator.next();
            if (remoteRepository.getId().equals(id)) {
                iterator.remove();
            }
        }
    }

    @Override
    public ModelResolver newCopy() {
        return new DefaultModelResolver(this);
    }

    @Override

    List<org.apache.maven.artifact.repository.ArtifactRepository> toArtifactRepositories(
            List<RemoteRepository> repositories);

    org.apache.maven.artifact.repository.ArtifactRepository toArtifactRepository(RemoteRepository repository);

    MavenSession getMavenSession();

    }

    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) {

    private final RepositorySystemSession session;

    private final RequestTrace trace;

    private final String context = "project";

    private List<RemoteRepository> repositories;

    private List<RemoteRepository> pomRepositories;

    private final List<RemoteRepository> externalRepositories;

    private final RepositorySystem resolver;

    private final RemoteRepositoryManager remoteRepositoryManager;

     * @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(

            throws TransferFailedException {
        File file =
                new File(localRepo.getBasedir(), localRepo.pathOfLocalRepositoryMetadata(metadata, remoteRepository));

        try {
            wagonManager.getArtifactMetadataFromDeploymentRepository(
                    metadata, remoteRepository, file, ArtifactRepositoryPolicy.CHECKSUM_POLICY_WARN);

        private final LocalRepository localRepo;

        private final List<RemoteRepository> repositories;

        private final DependencyFilter filter;

        private final int hashCode;

        public CacheKey(
                Plugin plugin,
                DependencyFilter extensionFilter,
                List<RemoteRepository> repositories,
                RepositorySystemSession session) {

        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,