private static final ImmutableSet<Cell<Character, Integer, String>> CELLS =
      ImmutableSet.of(
          immutableCell('a', 1, "foo"), immutableCell('b', 1, "bar"), immutableCell('a', 2, "baz"));

  private static final ImmutableSet<Character> ROW_SPACE = ImmutableSet.of('a', 'b');

  private static final ImmutableSet<Integer> COLUMN_SPACE = ImmutableSet.of(1, 2);

 *
 * @see RestResourcesPlugin
 */
public class CopyRestTestsTask extends DefaultTask {
    private static final String REST_TEST_PREFIX = "rest-api-spec/test";
    private final ListProperty<String> includeCore;
    private final ListProperty<String> includeXpack;
    private Map<String, String> substitutions;
    private final DirectoryProperty outputResourceDir;

    private FileCollection coreConfig;
    private FileCollection xpackConfig;

  private static final long ONE_BYTE_ROUNDTRIPPABLE_CHARACTERS = 0x007f - 0x0000 + 1;

  // 128
  private static final long EXPECTED_ONE_BYTE_ROUNDTRIPPABLE_COUNT =
      ONE_BYTE_ROUNDTRIPPABLE_CHARACTERS;

  // 1920 [chars 0x0080 to 0x07FF]
  private static final long TWO_BYTE_ROUNDTRIPPABLE_CHARACTERS = 0x07FF - 0x0080 + 1;

  // 18,304
  private static final long EXPECTED_TWO_BYTE_ROUNDTRIPPABLE_COUNT =

 */
class SnippetsTask extends DefaultTask {
    private static final String SCHAR = /(?:\\\/|[^\/])/
    private static final String SUBSTITUTION = /s\/($SCHAR+)\/($SCHAR*)\//
    private static final String CATCH = /catch:\s*((?:\/[^\/]+\/)|[^ \]]+)/
    private static final String SKIP_REGEX = /skip:([^\]]+)/
    private static final String SETUP = /setup:([^ \]]+)/
    private static final String TEARDOWN = /teardown:([^ \]]+)/

    private static final String VALID_UUID_STRING = "00112233-4455-6677-8899-AABBCCDDEEFF";
    private static final String VALID_UUID_STRING_LOWERCASE = "00112233-4455-6677-8899-aabbccddeeff";

    // Corresponding values for the valid UUID string
    private static final int TIME_LOW = 0x00112233;
    private static final short TIME_MID = (short) 0x4455;
    private static final short TIME_HI_AND_VERSION = (short) 0x6677;

         */
        public Field(final Terms termFacet) {
            final String encodedField = termFacet.getName().substring(Constants.FACET_FIELD_PREFIX.length());
            name = new String(BaseEncoding.base64().decode(encodedField), StandardCharsets.UTF_8);
            for (final Terms.Bucket tfEntry : termFacet.getBuckets()) {

            ScoreFunctionCall<ScoreFunctionCreator<DuplicateHostCQ>> functionsLambda,
            final ConditionOptionCall<FunctionScoreQueryBuilder> opLambda) {
        DuplicateHostCQ cq = new DuplicateHostCQ();
        queryLambda.callback(cq);
        final Collection<FilterFunctionBuilder> list = new ArrayList<>();
        if (functionsLambda != null) {

    public void functionScore(OperatorCall<FailureUrlCQ> queryLambda, ScoreFunctionCall<ScoreFunctionCreator<FailureUrlCQ>> functionsLambda,
            final ConditionOptionCall<FunctionScoreQueryBuilder> opLambda) {
        FailureUrlCQ cq = new FailureUrlCQ();
        queryLambda.callback(cq);
        final Collection<FilterFunctionBuilder> list = new ArrayList<>();
        if (functionsLambda != null) {

   * the corresponding methods of the full wrapped collection.
   */
  @WeakOuter
  class WrappedCollection extends AbstractCollection<V> {
    @ParametricNullness final K key;
    Collection<V> delegate;
    final @Nullable WrappedCollection ancestor;
    final @Nullable Collection<V> ancestorDelegate;

    WrappedCollection(
        @ParametricNullness K key, Collection<V> delegate, @Nullable WrappedCollection ancestor) {

     */
    public String execute() {
        try {
            final long count = ComponentUtil.getThumbnailManager().purge(getExpiry());
            return "Deleted " + count + " thumbnail files.";
        } catch (final Exception e) {
            logger.error("Failed to purge thumbnails.", e);
            return e.getMessage();
        }
    }

    /**