/**
         * Sets the nature of repositories to query when resolving the version range.
         * If {@code null} is provided, defaults to {@link Nature#RELEASE_OR_SNAPSHOT}.
         *
         * @param nature the repository nature, or {@code null} to use the default
         * @return this builder, never {@code null}
         */
        public VersionResolverRequestBuilder nature(Nature nature) {

                        wantedNature = Metadata.Nature.RELEASE_OR_SNAPSHOT;
                    } else {
                        wantedNature = Metadata.Nature.RELEASE;
                    }
                } else {
                    wantedNature = Metadata.Nature.valueOf(natureString.toUpperCase(Locale.ROOT));
                }

                    artifact.getGroupId(), artifact.getArtifactId(), MAVEN_METADATA_XML, Metadata.Nature.RELEASE);
        } else if (LATEST.equals(version)) {
            metadata = new DefaultMetadata(
                    artifact.getGroupId(),
                    artifact.getArtifactId(),
                    MAVEN_METADATA_XML,
                    Metadata.Nature.RELEASE_OR_SNAPSHOT);
        } else if (version.endsWith(SNAPSHOT)) {

        for (String pluginGroup : candidates.keySet()) {
            org.eclipse.aether.metadata.Metadata metadata =
                    new DefaultMetadata(pluginGroup, "maven-metadata.xml", DefaultMetadata.Nature.RELEASE_OR_SNAPSHOT);

            requests.add(new MetadataRequest(metadata, null, REPOSITORY_CONTEXT).setTrace(trace));

            for (RemoteRepository repository : request.getRepositories()) {

        String[] emptyArray = crawlerContext.removeSitemaps();
        assertNotNull(emptyArray);
        assertEquals(0, emptyArray.length);
    }

    /**
     * Test thread-local nature of sitemaps
     */
    public void test_sitemaps_threadLocal() throws Exception {
        final String[] thread1Sitemaps = new String[] { "http://thread1.com/sitemap.xml" };

        org.eclipse.aether.metadata.Metadata metadata = new DefaultMetadata(
                request.getGroupId(),
                request.getArtifactId(),
                "maven-metadata.xml",
                DefaultMetadata.Nature.RELEASE_OR_SNAPSHOT);

        List<MetadataRequest> requests = new ArrayList<>();

        requests.add(new MetadataRequest(metadata, null, REPOSITORY_CONTEXT).setTrace(trace));

@SuppressWarnings("serial") // we're overriding default serialization
// TODO(kevinb): I think we should push everything down to "BaseImmutableCollection" or something,
// just to do everything we can to emphasize the "practically an interface" nature of this class.
public abstract class ImmutableCollection<E> extends AbstractCollection<E> implements Serializable {
  /*
   * We expect SIZED (and SUBSIZED, if applicable) to be added by the spliterator factory methods.

        (ParameterizedType) new TypeCapture<Entry<String, int[][]>>() {}.capture();
    ParameterizedType ourType =
        Types.newParameterizedTypeWithOwner(Map.class, Entry.class, String.class, int[][].class);

    new EqualsTester()
        .addEqualityGroup(jvmType, ourType)
        .addEqualityGroup(new TypeCapture<Entry<String, String>>() {}.capture())
        .addEqualityGroup(new TypeCapture<Map<String, Integer>>() {}.capture())

Once a native speaker comes, reviews the PR, and approves it, the GitHub Action will come and remove the `awaiting-review` label, and add the `approved-1` label.

This way, we can notice when there are new translations ready, because they have the `approved-1` label.

## Merge Translation PRs

  static <V extends @Nullable Object, X extends Exception> V getChecked(
      Future<V> future, Class<X> exceptionClass) throws X {
    return getChecked(bestGetCheckedTypeValidator(), future, exceptionClass);
  }

  /** Implementation of {@link Futures#getChecked(Future, Class)}. */
  @CanIgnoreReturnValue
  @VisibleForTesting
  @ParametricNullness
  static <V extends @Nullable Object, X extends Exception> V getChecked(