afterRanInterruptiblySuccess(uncheckedCastNullableTToT(result));
    } else {
      afterRanInterruptiblyFailure(error);
    }
  }

  abstract boolean isDone();

  abstract T runInterruptibly() throws Exception;

  abstract void afterRanInterruptiblySuccess(T result);

  abstract void afterRanInterruptiblyFailure(Throwable error);

  final void interruptTask() {}

  abstract String toPendingString();

          }

          @Override
          void afterRanInterruptiblySuccess(String result) {
            taskResult.set(result);
          }

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