this.xStats = xStats;
    this.yStats = yStats;
    this.sumOfProductsOfDeltas = sumOfProductsOfDeltas;
  }

  /** Returns the number of pairs in the dataset. */
  public long count() {
    return xStats.count();
  }

  /** Returns the statistics on the {@code x} values alone. */
  public Stats xStats() {
    return xStats;
  }

  }

  @Override
  public String toString() {
    return "Optional.absent()";
  }

  private Object readResolve() {
    return INSTANCE;
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

  public SortedMultiset<E> tailMultiset(E lowerBound, BoundType boundType) {
    return Multisets.unmodifiableSortedMultiset(delegate().tailMultiset(lowerBound, boundType));
  }

  @GwtIncompatible private static final long serialVersionUID = 0;

    return ordering.hashCode() ^ 957692532; // meaningless
  }

  @Override
  public String toString() {
    return ordering + ".nullsFirst()";
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

    }

    @Test
    @DisplayName("Interaction verification with mock")
    void interactionVerification() {
        FileEntry mock = mock(FileEntry.class);
        when(mock.length()).thenReturn(42L);
        long len = mock.length();
        assertEquals(42L, len);
        verify(mock, times(1)).length();
        verifyNoMoreInteractions(mock);
    }

    int writeDataWireFormat(final byte[] dst, final int dstIndex) {
        if (dst.length - dstIndex < pipeDataLen) {
            if (LogStream.level >= 3) {
                log.println("TransTransactNamedPipe data too long for buffer");
            }
            return 0;
        }
        System.arraycopy(pipeData, pipeDataOff, dst, dstIndex, pipeDataLen);
        return pipeDataLen;
    }

    @Override

        keyTail.nextSibling = node;
        node.previousSibling = keyTail;
        keyList.tail = node;
      }
    } else { // non-empty list, insert before nextSibling
      /*
       * requireNonNull is safe as long as callers pass a nextSibling that (a) has the same key and
       * (b) is present in the multimap. (And they do, except maybe in case of concurrent
       * modification, in which case all bets are off.)
       */

    return rankMap.hashCode();
  }

  @Override
  public String toString() {
    return "Ordering.explicit(" + rankMap.keySet() + ")";
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

    private String newInput;

    /**
     * Constructor for ProtwordsItem.
     * @param id the unique identifier for this item
     * @param input the protected word input
     */
    public ProtwordsItem(final long id, final String input) {
        this.id = id;
        this.input = input;

        if (id == 0) {
            // create
            newInput = input;
        }
    }

    /**

    /** User who created this configuration */
    @Size(max = 1000)
    public String createdBy;

    /** Timestamp when this configuration was created */
    @ValidateTypeFailure
    public Long createdTime;

    /**
     * Initializes the form with default values for creating a new data configuration.
     */
    public void initialize() {
        crudMode = CrudMode.CREATE;
        boost = 1.0f;