/** We haven't yet computed or have already returned the element. */
    NOT_READY,

    /** We have reached the end of the data and are finished. */
    DONE,

    /** We've suffered an exception and are kaput. */
    FAILED,
  }

  @CheckForNull private T next;

  /**
   * Returns the next element. <b>Note:</b> the implementation must call {@link #endOfData()} when

?ok?tir???us&ay?t&asuk?o??????k&aso!.&a&d&awihsik?eki??k&a&noyot?s&akaayahihc?oihsagih???oadat?uziak??m&ayas!akaso??odak??r&a&bustam?wihsak??ediijuf??t&akarih?i&k?us???wag&ayen?odoyihsagih???e&son?tawanojihs??honim?i&akas?h&cugirom?s&ayabadnot?i&a&kat?t??n??oyimusihsagih???k&a&rabi?sim??ustakat??muzi?r&ijat?otamuk???nan&ak?n&ah?es???o&ay?n&a&ganihcawak?simuzi?tak??eba?ikibah?oyot??t&anim?iad?omamihs??uhc??ust&oimuzi?tes????ou&kuf!.&a&d&amay?eos??g&no?ok?usak??hiku?k&awayim?uzii??ma&kan?y&asih?im...

    /** We haven't yet computed or have already returned the element. */
    NOT_READY,

    /** We have reached the end of the data and are finished. */
    DONE,

    /** We've suffered an exception and are kaput. */
    FAILED,
  }

  @CheckForNull private T next;

  /**
   * Returns the next element. <b>Note:</b> the implementation must call {@link #endOfData()} when