*
 * @param <K> the most general key type this builder will be able to create caches for. This is
 *     normally {@code Object} unless it is constrained by using a method like {@link
 *     #removalListener}. Cache keys may not be null.
 * @param <V> the most general value type this builder will be able to create caches for. This is
 *     normally {@code Object} unless it is constrained by using a method like {@link

   * override methods (probably called "unsafeDoForward" and "unsafeDoBackward") with the same
   * signatures as the methods below, rather than overriding the same doForward and doBackward
   * methods as implementations of normal converters do?
   *
   * But no matter what we do, it's worth remembering that the resulting code is going to be unsound
   * in the presence of LegacyConverter, at least in the case of users who view the converter as a

  private final transient ImmutableSet<V> emptySet;

  /**
   * An instance created in {@link #readObject} to be returned from {@link #readResolve}. This field
   * is used only by those methods, and it is never set in a "normal" instance.
   *
   * <p>For more background, see {@code ConcurrentHashMultiset.deserializationReplacement}.
   */
  private transient @Nullable ImmutableSetMultimap<?, ?> deserializationReplacement;

   *         <li>UNSET, meaning "null pointer"
   *         <li>one plus an index into the keys, values, and entries arrays
   *       </ul>
   *   <li>another java.util.Map delegate implementation. In most modern JDKs, normal java.util hash
   *       collections intelligently fall back to a binary search tree if hash table collisions are
   *       detected. Rather than going to all the trouble of reimplementing this ourselves, we

            Clock clock = getClock(step.project);
            switch (step.name) {
                case PLAN:
                    // Planning steps should be executed out of normal execution
                    throw new IllegalStateException();
                case SETUP:
                    attachToThread(step);

    "number_of_replicas": 0,
    "auto_expand_replicas": "0-1"
  },
  "analysis" : {
    "tokenizer" : {
      "fess_japanese_normal" : {
        "type" : "kuromoji_tokenizer",
        "mode" : "normal",
        "discard_punctuation" : "false"
      },
      "fess_korean_normal": {
        "type": "seunjeon_tokenizer",
        "index_eojeol": false,
        "user_words": ["덕후", "버카충", "낄끼빠빠" ]
      }
    },

    "number_of_replicas": 0,
    "auto_expand_replicas": "0-1"
  },
  "analysis" : {
    "tokenizer" : {
      "fess_japanese_normal" : {
        "type" : "fess_japanese_tokenizer",
        "mode" : "normal",
        "discard_punctuation" : "false"
      },
      "fess_korean_normal": {
        "type": "fess_korean_tokenizer",
        "decompound_mode": "mixed",
        "user_dict_path": "${fess.dictionary.path}ko/nori.txt"

          return true;
        }
        return false;
      }

      @Override
      public boolean removeAll(Collection<?> c) {
        /*
         * We can't inherit the normal implementation (which calls
         * Sets.removeAllImpl(Set, *Collection*)) because, under some
         * circumstances, it attempts to call columnKeySet().iterator().remove,
         * which is unsupported.
         */

   * override methods (probably called "unsafeDoForward" and "unsafeDoBackward") with the same
   * signatures as the methods below, rather than overriding the same doForward and doBackward
   * methods as implementations of normal converters do?
   *
   * But no matter what we do, it's worth remembering that the resulting code is going to be unsound
   * in the presence of LegacyConverter, at least in the case of users who view the converter as a

  private final transient ImmutableSet<V> emptySet;

  /**
   * An instance created in {@link #readObject} to be returned from {@link #readResolve}. This field
   * is used only by those methods, and it is never set in a "normal" instance.
   *
   * <p>For more background, see {@code ConcurrentHashMultiset.deserializationReplacement}.
   */
  private transient @Nullable ImmutableSetMultimap<?, ?> deserializationReplacement;