future.set(1);
    assertEquals(1, future.get(-1, SECONDS).intValue());
  }

  @J2ktIncompatible
  @GwtIncompatible // threads
  public void testOverflowTimeout() throws Exception {
    // First, sanity check that naive multiplication would really overflow to a negative number:
    long nanosPerSecond = NANOSECONDS.convert(1, SECONDS);
    assertThat(nanosPerSecond * Long.MAX_VALUE).isLessThan(0L);

  static String toStringImpl(Map<?, ?> map) {
    StringBuilder sb = Collections2.newStringBuilderForCollection(map.size()).append('{');
    boolean first = true;
    for (Entry<?, ?> entry : map.entrySet()) {
      if (!first) {
        sb.append(", ");
      }
      first = false;
      sb.append(entry.getKey()).append('=').append(entry.getValue());
    }
    return sb.append('}').toString();
  }

  static String toStringImpl(Map<?, ?> map) {
    StringBuilder sb = Collections2.newStringBuilderForCollection(map.size()).append('{');
    boolean first = true;
    for (Entry<?, ?> entry : map.entrySet()) {
      if (!first) {
        sb.append(", ");
      }
      first = false;
      sb.append(entry.getKey()).append('=').append(entry.getValue());
    }
    return sb.append('}').toString();
  }

The order of each tag metadata dictionary also defines the order shown in the docs UI.

For example, even though `users` would go after `items` in alphabetical order, it is shown before them, because we added their metadata as the first dictionary in the list.

## OpenAPI URL { #openapi-url }

By default, the OpenAPI schema is served at `/openapi.json`.

But you can configure it with the parameter `openapi_url`.

// returned for the requested path.
//
// FIXME: It currently only lists `minio_` prefixed metrics.
func (h *metricsV3Server) listMetrics(path string) http.Handler {
	// First collect all matching MetricsGroup's
	matchingMG := make(map[collectorPath]*MetricsGroup)
	for _, collPath := range h.metricsData.collectorPaths {
		if collPath.isDescendantOf(path) {

		}
	}
	// Read until next line.
	in, err := r.buf.ReadBytes('\n')
	dst = append(dst, in...)
	return dst, err
}

// jsonSplitSize is the size of each block.
// Blocks will read this much and find the first following newline.
// 128KB appears to be a very reasonable default.
const jsonSplitSize = 128 << 10

// startReaders will read the header if needed and spin up a parser
// and a number of workers based on GOMAXPROCS.

	json := jsoniter.ConfigCompatibleWithStandardLibrary
	var doc PolicyDoc
	err := json.Unmarshal(data, &doc)
	if err != nil {
		err2 := json.Unmarshal(data, &doc.Policy)
		if err2 != nil {
			// Just return the first error.
			return err
		}
		d.Policy = doc.Policy
		return nil
	}
	*d = doc
	return nil
}

// key options
type options struct {
	ttl int64 // expiry in seconds
}

)

func (p *poolMeta) Decommission(idx int, pi poolSpaceInfo) error {
	// Return an error when there is decommission on going - the user needs
	// to explicitly cancel it first in order to restart decommissioning again.
	if p.Pools[idx].Decommission != nil &&
		!p.Pools[idx].Decommission.Complete &&
		!p.Pools[idx].Decommission.Failed &&
		!p.Pools[idx].Decommission.Canceled {

		t.Errorf("Should not raise any error, but got %v", err)
	}

	if result.Age.Int64 != 18 {
		t.Errorf("should update age to 18")
	}

	var result2 ScannerValuerStruct
	if err := DB.First(&result2, result.ID).Error; err != nil {
		t.Errorf("got error %v when query with %v", err, result.ID)
	}

	AssertObjEqual(t, result2, result, "ID", "CreatedAt", "UpdatedAt", "Name", "Gender", "Age")
}

	if embeddedRelations == nil {
		return nil
	}
	names := make([]string, 0, len(embeddedRelations.Relations)+len(embeddedRelations.EmbeddedRelations))
	for _, relation := range embeddedRelations.Relations {
		// skip first struct name
		names = append(names, strings.Join(relation.Field.EmbeddedBindNames[1:], "."))
	}
	for _, relations := range embeddedRelations.EmbeddedRelations {
		names = append(names, embeddedValues(relations)...)
	}