String toPendingString() {
            return "";
          }

          @Override
          void afterRanInterruptiblySuccess(@Nullable Void result) {}

          @Override
          void afterRanInterruptiblyFailure(Throwable error) {}
        };
    Thread runner = new Thread(task);
    runner.start();
    isInterruptibleRegistered.await();

          String toPendingString() {
            return "";
          }

          @Override
          void afterRanInterruptiblySuccess(@Nullable Void result) {}

          @Override
          void afterRanInterruptiblyFailure(Throwable error) {}
        };
    Thread runner = new Thread(task);
    runner.start();
    isInterruptibleRegistered.await();

        if (error == null) {
          // The cast is safe because of the `run` and `error` checks.
          afterRanInterruptiblySuccess(uncheckedCastNullableTToT(result));
        } else {
          afterRanInterruptiblyFailure(error);
        }
      }
    }
  }

  private void waitForInterrupt(Thread currentThread) {
    /*
     * If someone called cancel(true), it is possible that the interrupted bit hasn't been set yet.

       * pendingToString().)
       */
      CombinedFuture.this.task = null;

      setValue(result);
    }

    @Override
    final void afterRanInterruptiblyFailure(Throwable error) {
      // See afterRanInterruptiblySuccess.
      CombinedFuture.this.task = null;

      if (error instanceof ExecutionException) {
        /*