* Creates an OptionalEntity from a nullable entity.
     *
     * @param <T> the type of the entity
     * @param entity the entity (can be null)
     * @return the OptionalEntity
     */
    public static <T> OptionalEntity<T> ofNullable(final T entity) {
        return OptionalEntity.ofNullable(entity, () -> {});
    }

    this.collectionGenerator = collectionGenerator;
  }

  @Override
  public TestSubjectGenerator<? extends Iterable<E>> getInnerGenerator() {
    return collectionGenerator;
  }

  @Override
  public Iterator<E> get() {
    return collectionGenerator.createTestSubject().iterator();
  }

    @Override
    public String getName() {
        return netName;
    }

    @Override
    public int getType() {
        /* 0x80000000 means hidden but SmbFile.isHidden() checks for $ at end
         */
        switch (type & 0xFFFF) {
        case 1:
            return SmbFile.TYPE_PRINTER;
        case 3:
            return SmbFile.TYPE_NAMED_PIPE;
        }
        return SmbFile.TYPE_SHARE;
    }

    @Override

        return path.toFile();
    }

    /**
     * Gets the file of this source.
     *
     * @return The underlying file, never {@code null}.
     * @since 4.0.0
     */
    public Path getPath() {
        return path;
    }

    @Override
    public String toString() {
        return getLocation();
    }

    @Override
    public int hashCode() {
        return hashCode;
    }

      assertThat(e).matchesPredicate { it is CallStart || it is Canceled }
    } else {
      eventSequence.forEach loop@{
        when (e.closes(it)) {
          null -> return // no open event
          true -> return // found open event
          false -> return@loop // this is not the open event so continue
        }
      }
      fail<Any>("event $e without matching start event")
    }
  }

    @Override
    public UserInfoDbm asDBMeta() {
        return UserInfoDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "user_info";
    }

    @Override
    public boolean hasSpecifiedColumn() {
        return _specification != null;
    }

    @Override
    public ConditionQuery localCQ() {
        return doGetConditionQuery();
    }

    @Override
    public GroupDbm asDBMeta() {
        return GroupDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "group";
    }

    @Override
    public boolean hasSpecifiedColumn() {
        return _specification != null;
    }

    @Override
    public ConditionQuery localCQ() {
        return doGetConditionQuery();
    }

		objLayer := newObjectLayerFn()
		if objLayer == nil {
			return
		}

		r = objLayer.Health(GlobalContext, HealthOptions{})
		return
	}
	return cachevalue.NewFromFunc(1*time.Minute,
		cachevalue.Opts{ReturnLastGood: true},
		loadHealth,
	)
}

func getDiffStats(initialStats, currentStats madmin.DiskIOStats) madmin.DiskIOStats {
	return madmin.DiskIOStats{

     * @param cause the original exception that triggered reconnection
     * @return a future that completes with the reconnected handle info or fails
     */
    public CompletableFuture<HandleInfo> reconnectHandle(String path, Exception cause) {
        HandleInfo info = handleManager.getHandleForReconnect(path);

        if (info == null) {

	if err != nil {
		if isErrObjectNotFound(err) {
			return nil, ObjectInfo{}, errConfigNotFound
		}

		return nil, ObjectInfo{}, err
	}
	defer r.Close()

	buf, err := io.ReadAll(r)
	if err != nil {
		return nil, ObjectInfo{}, err
	}
	if len(buf) == 0 {
		return nil, ObjectInfo{}, errConfigNotFound
	}
	return buf, r.ObjInfo, nil
}