notify_webhook        publish bucket notifications to webhook endpoints
notify_amqp           publish bucket notifications to AMQP endpoints
notify_kafka          publish bucket notifications to Kafka endpoints
notify_mqtt           publish bucket notifications to MQTT endpoints
notify_nats           publish bucket notifications to NATS endpoints
notify_nsq            publish bucket notifications to NSQ endpoints

	// Trace Publisher uses nonblocking publish and hence does not wait for slow subscribers.
	// Use buffered channel to take care of burst sends or slow w.Write()
	err = globalTrace.SubscribeJSON(traceOpts.TraceTypes(), out, ctx.Done(), func(entry madmin.TraceInfo) bool {
		return shouldTrace(entry, traceOpts)
	}, &wg)
	if err != nil {
		return grid.NewRemoteErr(err)
	}

  // propagate to the input. Cancellation propagation is fundamentally racy so this is fine.
  //
  // Future versions of the JMM may revise safe construction semantics in such a way that we can
  // safely publish these objects and we won't need this whole discussion.
  // TODO(user,lukes): consider adding volatile to all these fields since in current known JVMs

		if globalTrace.NumSubscribers(madmin.TraceBatch) > 0 {
			globalTrace.Publish(batchJobTrace(d, job, startTime, duration, info, attempts, err))
			return
		}
		switch d {
		case batchJobMetricReplication:
			if globalTrace.NumSubscribers(madmin.TraceBatchReplication) > 0 {
				globalTrace.Publish(batchJobTrace(d, job, startTime, duration, info, attempts, err))
			}
		case batchJobMetricKeyRotation:

    // Changes after are not
    list.set(0, 4);

    assertEquals(ImmutableList.of(3), first);
  }

  @J2ktIncompatible // Arrays.asList(...).subList() doesn't implement RandomAccess in J2KT.
  @GwtIncompatible // Arrays.asList(...).subList() doesn't implement RandomAccess in GWT
  public void testPartitionRandomAccess() {
    Iterator<Integer> source = asList(1, 2, 3).iterator();

    // Changes after are not
    list.set(0, 4);

    assertEquals(ImmutableList.of(3), first);
  }

  @J2ktIncompatible // Arrays.asList(...).subList() doesn't implement RandomAccess in J2KT.
  @GwtIncompatible // Arrays.asList(...).subList() doesn't implement RandomAccess in GWT
  public void testPartitionRandomAccess() {
    Iterator<Integer> source = asList(1, 2, 3).iterator();

      synchronized (mutex) {
        return delegate().set(index, element);
      }
    }

    @Override
    public List<E> subList(int fromIndex, int toIndex) {
      synchronized (mutex) {
        return list(delegate().subList(fromIndex, toIndex), mutex);
      }
    }

    @Override
    public boolean equals(@Nullable Object o) {
      if (o == this) {
        return true;

      synchronized (mutex) {
        delegate().sort(c);
      }
    }

    @Override
    public List<E> subList(int fromIndex, int toIndex) {
      synchronized (mutex) {
        return list(delegate().subList(fromIndex, toIndex), mutex);
      }
    }

    @Override
    public boolean equals(@Nullable Object o) {
      if (o == this) {
        return true;

      return this;
    } else if (fromIndex == toIndex) {
      return emptyMap(comparator());
    } else {
      return new ImmutableSortedMap<>(
          keySet.getSubSet(fromIndex, toIndex), valueList.subList(fromIndex, toIndex));
    }
  }

  /**
   * This method returns a {@code ImmutableSortedMap}, consisting of the entries whose keys are less
   * than {@code toKey}.
   *

      return this;
    } else if (fromIndex == toIndex) {
      return emptyMap(comparator());
    } else {
      return new ImmutableSortedMap<>(
          keySet.getSubSet(fromIndex, toIndex), valueList.subList(fromIndex, toIndex));
    }
  }

  /**
   * This method returns a {@code ImmutableSortedMap}, consisting of the entries whose keys are less
   * than {@code toKey}.
   *