public boolean isWarnEnabled() {
        return false;
    }

    public void warn(String msg) {}

    public void warn(String format, Object arg) {}

    public void warn(String format, Object... arguments) {}

    public void warn(String format, Object arg1, Object arg2) {}

    public void warn(String msg, Throwable t) {}

    public boolean isWarnEnabled(Marker marker) {

    protected final int numberOfInputDocs;
    protected final boolean hasError;
    protected final List<Throwable> errors = new ArrayList<>();
    protected final long took;

    protected SuggestIndexResponse(final int numberOfSuggestDocs, final int numberOfInputDocs, final List<Throwable> errors,
            final long took) {
        this.numberOfSuggestDocs = numberOfSuggestDocs;

  // & this future completes. Released when the future releases the reference to the running state
  private @Nullable Set<Throwable> seenExceptions = null;
  private int remaining;

  AggregateFutureState(int remainingFutures) {
    this.remaining = remainingFutures;
  }

  final Set<Throwable> getOrInitSeenExceptions() {
    if (seenExceptions == null) {
      seenExceptions = newHashSet();

    }

    public void reject(final Throwable t) {
        final ArrayList<Consumer<Throwable>> executeCallbacks;
        synchronized (Deferred.this) {
            if (response != null || error != null) {
                return;
            }
            error = t;

            executeCallbacks = new ArrayList<>(errorCallbacks.size());
            Consumer<Throwable> callback;

    }

    public ModelParserException(String message, Throwable cause) {
        this(message, -1, -1, cause);
    }

    public ModelParserException(String message, int lineNumber, int columnNumber, Throwable cause) {
        super(message, cause);
        this.lineNumber = lineNumber;
        this.columnNumber = columnNumber;
    }

    public ModelParserException(Throwable cause) {
        this(null, cause);
    }

  /**
   * Fails this future with the given Throwable if {@link #allMustSucceed} is true. Also, logs the
   * throwable if it is an {@link Error} or if {@link #allMustSucceed} is {@code true}, the
   * throwable did not cause this future to fail, and it is the first time we've seen that
   * particular Throwable.
   */
  private void handleException(Throwable throwable) {
    checkNotNull(throwable);

    if (allMustSucceed) {

  @Override
  public boolean set(@ParametricNullness V value) {
    return super.set(value);
  }

  @CanIgnoreReturnValue
  @Override
  public boolean setException(Throwable throwable) {
    return super.setException(throwable);
  }

  @CanIgnoreReturnValue
  @Override
  public boolean setFuture(ListenableFuture<? extends V> future) {
    return super.setFuture(future);
  }

          reason: String,
        ) {
          webSocket.close(1000, null)
          latch.countDown()
        }

        override fun onFailure(
          webSocket: WebSocket,
          t: Throwable,
          response: Response?,
        ) {
          t.printStackTrace(System.out)
          latch.countDown()
        }
      },
    )

            break;
        }
    }

    protected void processDefault(final Object... objs) {
    }

    protected void processSystemError(final Object... objs) {
        final Throwable t = (Throwable) objs[0];
        if (logger.isErrorEnabled()) {
            logger.error("System Error.", t);
        }
    }

    protected void processNoRule(final Object... objs) {

    protected boolean setException(Throwable throwable) {
      boolean result = sync.setException(checkNotNull(throwable));
      if (result) {
        executionList.execute();
      }
      return result;
    }

    /**
     * Following the contract of {@link AbstractQueuedSynchronizer} we create a private subclass to
     * hold the synchronizer. This synchronizer is used to implement the blocking and waiting calls