// current design.
type erasureSets struct {
	sets []*erasureObjects

	// Reference format.
	format *formatErasureV3

	// erasureDisks mutex to lock erasureDisks.
	erasureDisksMu sync.RWMutex

	// Re-ordered list of disks per set.
	erasureDisks [][]StorageAPI

	// Distributed locker clients.
	erasureLockers setsDsyncLockers

	// Distributed lock owner (constant per running instance).
	erasureLockOwner string

 * @author George van den Driessche
 */
// TODO: Descriptive assertion messages, with hints as to probable fixes.
// TODO: Add another constructor parameter indicating whether the class under test is ordered, and
// check the order if so.
// TODO: Refactor to share code with SetTestBuilder etc.
@GwtCompatible
@NullMarked
public abstract class MapInterfaceTest<K extends @Nullable Object, V extends @Nullable Object>

    } catch (UnknownHostException impossible) {
      throw new AssertionError(impossible);
    }
  }

  /**
   * Returns an address from a <b>little-endian ordered</b> byte array (the opposite of what {@link
   * InetAddress#getByAddress} expects).
   *
   * <p>IPv4 address byte array must be 4 bytes long and IPv6 byte array must be 16 bytes long.
   *

  private static MediaType addKnownType(MediaType mediaType) {
    knownTypes.put(mediaType, mediaType);
    return mediaType;
  }

  /*
   * The following constants are grouped by their type and ordered alphabetically by the constant
   * name within that type. The constant name should be a sensible identifier that is closest to the
   * "common name" of the media. This is often, but not necessarily the same as the subtype.
   *

  private static MediaType addKnownType(MediaType mediaType) {
    knownTypes.put(mediaType, mediaType);
    return mediaType;
  }

  /*
   * The following constants are grouped by their type and ordered alphabetically by the constant
   * name within that type. The constant name should be a sensible identifier that is closest to the
   * "common name" of the media. This is often, but not necessarily the same as the subtype.
   *

unhappy at the number of executions the Queen had ordered.

  They very soon came upon a Gryphon, lying fast asleep in the
sun.  (IF you don't know what a Gryphon is, look at the picture.)
`Up, lazy thing!' said the Queen, `and take this young lady to
see the Mock Turtle, and to hear his history.  I must go back and
see after some executions I have ordered'; and she walked off,

    } catch (UnknownHostException impossible) {
      throw new AssertionError(impossible);
    }
  }

  /**
   * Returns an address from a <b>little-endian ordered</b> byte array (the opposite of what {@link
   * InetAddress#getByAddress} expects).
   *
   * <p>IPv4 address byte array must be 4 bytes long and IPv6 byte array must be 16 bytes long.
   *

        result.add(queryNamesAndValues[i]!!)
      }
      return result.unmodifiable()
    }

  /**
   * Returns all values for the query parameter `name` ordered by their appearance in this
   * URL. For example this returns `["banana"]` for `queryParameterValue("b")` on
   * `http://host/?a=apple&b=banana`.
   *

apply to operands of <i>ordered</i> types.
These terms and the result of the comparisons are defined as follows:
</p>

<ul>
	<li>
	Boolean types are comparable.
	Two boolean values are equal if they are either both
	<code>true</code> or both <code>false</code>.
	</li>

	<li>
	Integer types are comparable and ordered.
	Two integer values are compared in the usual way.

    /**
     * A queue of elements currently in the map, ordered by write time. Elements are added to the
     * tail of the queue on write.
     */
    @GuardedBy("this")
    final Queue<ReferenceEntry<K, V>> writeQueue;

    /**
     * A queue of elements currently in the map, ordered by access time. Elements are added to the