@SuppressWarnings("unchecked") // The natural-ordered empty set supports all types.
      RegularImmutableSortedSet<E> result =
          (RegularImmutableSortedSet<E>) RegularImmutableSortedSet.NATURAL_EMPTY_SET;
      return result;
    } else {
      return new RegularImmutableSortedSet<>(ImmutableList.of(), comparator);
    }
  }

  /**
   * Returns the empty immutable sorted set.
   *

  // indicated by updateRevision.
  optional int32 updatedReplicas = 5;

  // currentRevision, if not empty, indicates the version of the StatefulSet used to generate Pods in the
  // sequence [0,currentReplicas).
  optional string currentRevision = 6;

  // updateRevision, if not empty, indicates the version of the StatefulSet used to generate Pods in the sequence
  // [replicas-updatedReplicas,replicas)

     * @param parent The parent model, may be <code>null</code>.
     * @param childDirectory The directory defined in child model, may be <code>null</code>.
     * @return The path adjustment, can be empty but never <code>null</code>.
     */
    private String getChildPathAdjustment(Model child, Model parent, String childDirectory) {
        String adjustment = "";

        if (parent != null) {

	if err != nil {
		return ErrInvalidRetentionDate
	}

	*rDate = RetentionDate{retDate}
	return nil
}

// MarshalXML encodes expiration date if it is non-zero and encodes
// empty string otherwise
func (rDate RetentionDate) MarshalXML(e *xml.Encoder, startElement xml.StartElement) error {
	if rDate.IsZero() {
		return nil
	}
	return e.EncodeElement(amztime.ISO8601Format(rDate.Time), startElement)

      }
    requestBody = "".toRequestBody(null)
    requestBody = "".toRequestBody("".toMediaTypeOrNull())
    requestBody = ByteString.EMPTY.toRequestBody(null)
    requestBody = ByteString.EMPTY.toRequestBody("".toMediaTypeOrNull())
    requestBody = byteArrayOf(0, 1).toRequestBody(null, 0, 2)
    requestBody = byteArrayOf(0, 1).toRequestBody("".toMediaTypeOrNull(), 0, 2)

    return new MutableClassToInstanceMap<>(new HashMap<Class<? extends @NonNull B>, B>());
  }

  /**
   * Returns a new {@code MutableClassToInstanceMap} instance backed by a given empty {@code
   * backingMap}. The caller surrenders control of the backing map, and thus should not allow any
   * direct references to it to remain accessible.
   */

  // once unless the tape is persistent) and produces the gradient of the target
  // tensors with respect to the source tensors. The output gradients are used
  // if not empty and not null. The result is populated with one tensor per
  // target element.
  absl::Status ComputeGradient(
      AbstractContext* ctx, absl::Span<AbstractTensorHandle* const> targets,

const (
	dotdotComponent = ".."
	dotComponent    = "."
)

func hasBadHost(host string) error {
	if globalIsCICD && strings.TrimSpace(host) == "" {
		// under CI/CD test setups ignore empty hosts as invalid hosts
		return nil
	}
	_, err := xnet.ParseHost(host)
	return err
}

// Check if the incoming path has bad path components,
// such as ".." and "."

			}
		}
		// Hadoop makes the max-keys=2 listing call just to find if the directory is empty or not, or in the case
		// of an object to check for object existence. For versioned buckets, MinIO's non-recursive
		// call will report top level prefixes in deleted state, whereas spark/hadoop interpret this as non-empty
		// and throw a 404 exception. This is especially a problem for spark jobs overwriting the same partition

    characters it escapes. Previously we weren’t percent-encoding commas,
    parens, and other characters.
 *  Fix: Relax `FormEncodingBuilder` to support building empty forms.
 *  Fix: Timeouts throw `SocketTimeoutException`, not `InterruptedIOException`.
 *  Fix: Change `MockWebServer` to use the same logic as OkHttp when determining
    whether an HTTP request permits a body.