private final Joiner joiner;
    private final String keyValueSeparator;

    private MapJoiner(Joiner joiner, String keyValueSeparator) {
      this.joiner = joiner; // only "this" is ever passed, so don't checkNotNull
      this.keyValueSeparator = checkNotNull(keyValueSeparator);
    }

    /**
     * Appends the string representation of each entry of {@code map}, using the previously

    // objects indefinitely.
    private void drainQueue() {
      Reference<? extends L> ref;
      while ((ref = queue.poll()) != null) {
        // We only ever register ArrayReferences with the queue so this is always safe.
        ArrayReference<? extends L> arrayRef = (ArrayReference<? extends L>) ref;

        "language":   "dutch"
      },
      "dutch_override": {
        "type":       "stemmer_override",
        "rules": [
          "fiets=>fiets",
          "bromfiets=>bromfiets",
          "ei=>eier",
          "kind=>kinder"
        ]
      },
      "english_keywords": {
        "type":       "keyword_marker",
        "keywords":   ["hello"]
      },
      "finnish_stop": {

        "language":   "dutch"
      },
      "dutch_override": {
        "type":       "stemmer_override",
        "rules": [
          "fiets=>fiets",
          "bromfiets=>bromfiets",
          "ei=>eier",
          "kind=>kinder"
        ]
      },
      "english_keywords": {
        "type":       "keyword_marker",
        "keywords":   ["hello"]
      },
      "finnish_stop": {

      // unpark even though the thread has already removed itself from the list. But even if we did
      // use a CAS, that race would still exist (it would just be ever so slightly smaller).
      Thread w = thread;
      if (w != null) {
        thread = null;
        LockSupport.unpark(w);
      }
    }
  }

  /*

lBC,KAAM,aAENX,cAAe,SAAUxE,GACxB,IAAIoF,EAAOC,EAIX,SAAMrF,GAAgC,oBAAzBP,EAASN,KAAMa,QAI5BoF,EAAQvG,EAAUmB,KASK,mBADvBqF,EAAO3F,GAAOP,KAAMiG,EAAO,gBAAmBA,EAAM5C,cACf5C,EAAWT,KAAMkG,KAAWxF,IAGlEyF,cAAe,SAAUtF,GACxB,IAAIoC,EAEJ,IAAMA,KAAQpC,EACb,OAAO,EAER,OAAO,GAKRuF,WAAY,SAAU7E,EAAMwD,EAAStD,GACpCH,EAASC,EAAM,CAAEH,MAAO2D,GAAWA,EAAQ3D,OAASK,IAGrDqC,KAAM,SAAUjD,EAAKkD,GACpB,IAAIjB,EAAQpB,EAAI,EAEhB,GAAKmB,EAAahC,IAEjB,IADAiC,EAASjC,EAAIiC,OACLpB,EAAIoB,EAAQpB,IACnB,IAAgD,IAA3CqC,EAAS/D,KAAMa,EAAKa,...

     *
     * All that said, don't forget that everyone should call converter.convert() instead of
     * converter.apply(), anyway. If clients use only converter.convert(), then their nullness
     * checkers are unlikely to ever look at the annotations on this declaration.
     *
     * Historical note: At one point, we'd declared this method as accepting and returning nullable
     * values. For details on that, see earlier revisions of this file.

   * @since 31.0
   */
  @SafeVarargs
  public static <K, V> ImmutableBiMap<K, V> ofEntries(Entry<? extends K, ? extends V>... entries) {
    @SuppressWarnings("unchecked") // we will only ever read these
    Entry<K, V>[] entries2 = (Entry<K, V>[]) entries;
    return RegularImmutableBiMap.fromEntries(entries2);
  }

  /**

    // oldFuture completes.
    Runnable listener =
        () -> {
          if (taskFuture.isDone()) {
            // Since the value of oldFuture can only ever be immediateVoidFuture() or setFuture of a
            // future that eventually came from immediateVoidFuture(), this doesn't leak throwables
            // or completion values.
            newFuture.setFuture(oldFuture);

      // unpark even though the thread has already removed itself from the list. But even if we did
      // use a CAS, that race would still exist (it would just be ever so slightly smaller).
      Thread w = thread;
      if (w != null) {
        thread = null;
        LockSupport.unpark(w);
      }
    }
  }

  /*