@Override
    public boolean equals(@Nullable Object other) {
      return other instanceof NumberOrdering;
    }

    private static final long serialVersionUID = 0;
  }

  /*
   * Now we have monster tests that create hundreds of Orderings using different
   * combinations of methods, then checks compare(), binarySearch() and so
   * forth on each one.
   */

    @Override
    public boolean equals(@Nullable Object other) {
      return other instanceof NumberOrdering;
    }

    private static final long serialVersionUID = 0;
  }

  /*
   * Now we have monster tests that create hundreds of Orderings using different
   * combinations of methods, then checks compare(), binarySearch() and so
   * forth on each one.
   */