How to use

setFailure

method

in

io.netty.util.concurrent.DefaultPromise

@Override
public ChannelPromise setFailure(Throwable cause) {
  super.setFailure(cause);
  return this;
}

  @Override
  public ProgressivePromise<V> setFailure(Throwable cause) {
    super.setFailure(cause);
    return this;
  }
}

protected final Promise<V> setFailureInternal(Throwable cause) {
  super.setFailure(cause);
  return this;
}

private void setFailure0(ChannelGroupException cause) {
  super.setFailure(cause);
}

  @Override
  public ProgressivePromise<V> setFailure(Throwable cause) {
    super.setFailure(cause);
    return this;
  }
}

@Override
public ChannelPromise setFailure(Throwable cause) {
  super.setFailure(cause);
  return this;
}

protected final Promise<V> setFailureInternal(Throwable cause) {
  super.setFailure(cause);
  return this;
}

private void setFailure0(ChannelGroupException cause) {
  super.setFailure(cause);
}

@Override
public ChannelPromise setFailure(Throwable cause) {
  super.setFailure(cause);
  return this;
}

  @Override
  public ProgressivePromise<V> setFailure(Throwable cause) {
    super.setFailure(cause);
    return this;
  }
}

protected final Promise<V> setFailureInternal(Throwable cause) {
  super.setFailure(cause);
  return this;
}

private void setFailure0(ChannelGroupException cause) {
  super.setFailure(cause);
}

/**
 * Create a promise that emits a {@code Boolean} value on completion of the {@code future}
 *
 * @param future the future.
 * @return Promise emitting a {@code Boolean} value. {@literal true} if the {@code future} completed successfully, otherwise
 *         the cause wil be transported.
 */
static Promise<Boolean> toBooleanPromise(Future<?> future) {
  DefaultPromise<Boolean> result = new DefaultPromise<>(GlobalEventExecutor.INSTANCE);
  if (future.isDone() || future.isCancelled()) {
    if (future.isSuccess()) {
      result.setSuccess(true);
    } else {
      result.setFailure(future.cause());
    }
    return result;
  }
  future.addListener((GenericFutureListener<Future<Object>>) f -> {
    if (f.isSuccess()) {
      result.setSuccess(true);
    } else {
      result.setFailure(f.cause());
    }
  });
  return result;
}

  @Override
  public ProgressivePromise<V> setFailure(Throwable cause) {
    super.setFailure(cause);
    return this;
  }
}

protected final Promise<V> setFailureInternal(Throwable cause) {
  super.setFailure(cause);
  return this;
}

  @Override
  public ProgressivePromise<V> setFailure(Throwable cause) {
    super.setFailure(cause);
    return this;
  }
}

@Override
@SuppressWarnings("FutureReturnValueIgnored")
public ChannelPromise setFailure(Throwable cause) {
  // Returned value is deliberately ignored
  super.setFailure(cause);
  return this;
}

@Override
public ChannelPromise setFailure(Throwable cause) {
  super.setFailure(cause);
  return this;
}

  @Override
  public ProgressivePromise<V> setFailure(Throwable cause) {
    super.setFailure(cause);
    return this;
  }
}

@Override
@SuppressWarnings("FutureReturnValueIgnored")
public ChannelPromise setFailure(Throwable cause) {
  // Returned value is deliberately ignored
  super.setFailure(cause);
  return this;
}