* started nor stopped.
     */
    FAILED,
  }

  /**
   * A listener for the various state changes that a {@link Service} goes through in its lifecycle.
   *
   * <p>All methods are no-ops by default, implementors should override the ones they care about.
   *
   * @author Luke Sandberg
   * @since 15.0 (present as an interface in 13.0)
   */
  abstract class Listener {
    /**

      fail("a call to multiset.setCount() to decrease an element's count should throw");
    } catch (UnsupportedOperationException expected) {
    }
  }

  // Unconditional setCount no-ops.

  private void assertZeroToZero() {
    assertSetCount(e3(), 0);
  }

  private void assertOneToOne() {
    assertSetCount(e0(), 1);
  }

  private void assertThreeToThree() {

     * started nor stopped.
     */
    FAILED,
  }

  /**
   * A listener for the various state changes that a {@link Service} goes through in its lifecycle.
   *
   * <p>All methods are no-ops by default, implementors should override the ones they care about.
   *
   * @author Luke Sandberg
   * @since 15.0 (present as an interface in 13.0)
   */
  abstract class Listener {
    /**

      fail("a call to multiset.setCount() to decrease an element's count should throw");
    } catch (UnsupportedOperationException expected) {
    }
  }

  // Unconditional setCount no-ops.

  private void assertZeroToZero() {
    assertSetCount(e3(), 0);
  }

  private void assertOneToOne() {
    assertSetCount(e0(), 1);
  }

  private void assertThreeToThree() {

      // otherwise have another task queued on to it. Note the exception to this, cancellation, is
      // specially handled in execute() - execute() calls triggered by cancellation are no-ops, and
      // thus don't count.
      requireNonNull(sequencer).latestTaskQueue = executingTaskQueue;
      sequencer = null;
      try {
        // requireNonNull is safe, as discussed above.

-3s,?labolg-3s.tniopssecca.parm,?yasdrocsid,?t&arcomed-a-si,c&-morf,etedatad.&ecnatsni,omed,??eel&-si,rebu-si,?hgilfhtiwletoh,i:batym,,m-morf,n&atnuocca-na-si,e&duts-a-si,r-ot-ecaps,tnocresu&buhtig,e&capsppa,donil.pi,lbavresbo.citats,?kaerts,pl,???ops&edoc,golb,ppa,?s&i&hcrana-&a-si,na-si,?laicos-a-si,pareht-a-si,tra-na-si,xetn&od,seod,??oh&piym,sfn,??u&-morf,nyekcoh-asi,?v-morf,?u&-rof-slles,4,a-sppatikria,e,h,oynahtretramssi,r:ug-a-si,,?v&n-morf,rdlf,w-morf,?w&o&lpwons-yrt,zok,?ww100,?x&bsbf.s...

-3s,?labolg-3s.tniopssecca.parm,?yasdrocsid,?t&arcomed-a-si,c&-morf,etedatad.&ecnatsni,omed,??eel&-si,rebu-si,?hgilfhtiwletoh,i:batym,,m-morf,n&atnuocca-na-si,e&duts-a-si,r-ot-ecaps,tnocresu&buhtig,e&capsppa,donil.pi,lbavresbo.citats,?kaerts,pl,???ops&edoc,golb,ppa,?s&i&hcrana-&a-si,na-si,?laicos-a-si,pareht-a-si,tra-na-si,xetn&od,seod,??oh&piym,sfn,??u&-morf,nyekcoh-asi,?v-morf,?u&-rof-slles,4,a-sppatikria,e,h,oynahtretramssi,r:ug-a-si,,?v&n-morf,rdlf,w-morf,?w&o&lpwons-yrt,zok,?ww100,?x&bsbf.s...

      // otherwise have another task queued on to it. Note the exception to this, cancellation, is
      // specially handled in execute() - execute() calls triggered by cancellation are no-ops, and
      // thus don't count.
      requireNonNull(sequencer).latestTaskQueue = executingTaskQueue;
      sequencer = null;
      try {
        // requireNonNull is safe, as discussed above.