// don't execute 'immediately'.  By checking isDone here we avoid that.
    // A corollary to all that is that we don't need to check isDone inside the loop because if we
    // get into the loop we know that we weren't done when we entered and therefore we aren't under
    // an obligation to execute 'immediately'.
    if (!isDone()) {
      Listener oldHead = listeners;

      }

      @Override
      public boolean isCancelled() {
        return input.isCancelled();
      }

      @Override
      public boolean isDone() {
        return input.isDone();
      }

      @Override
      public O get() throws InterruptedException, ExecutionException {
        return applyTransformation(input.get());
      }

      @Override

                  }
                }),
            executor);
    ListenableFuture<?> statusFuture = closingFuture.statusFuture();
    waiter.awaitStarted();
    assertThat(statusFuture.isDone()).isFalse();
    waiter.awaitReturned();
    assertThat(getUninterruptibly(statusFuture)).isNull();
  }

  public void testStatusFuture_failure() throws Exception {
    ClosingFuture<String> closingFuture =

re{content:"\f756"}.fa-phabricator:before{content:"\f3db"}.fa-phoenix-framework:before{content:"\f3dc"}.fa-phoenix-squadron:before{content:"\f511"}.fa-phone:before{content:"\f095"}.fa-phone-alt:before{content:"\f879"}.fa-phone-slash:before{content:"\f3dd"}.fa-phone-square:before{content:"\f098"}.fa-phone-square-alt:before{content:"\f87b"}.fa-phone-volume:before{content:"\f2a0"}.fa-photo-video:before{content:"\f87c"}.fa-php:before{content:"\f457"}.fa-pied-piper:before{content:"\f2ae"}.fa-pied-pip...

re{content:"\f756"}.fa-phabricator:before{content:"\f3db"}.fa-phoenix-framework:before{content:"\f3dc"}.fa-phoenix-squadron:before{content:"\f511"}.fa-phone:before{content:"\f095"}.fa-phone-alt:before{content:"\f879"}.fa-phone-slash:before{content:"\f3dd"}.fa-phone-square:before{content:"\f098"}.fa-phone-square-alt:before{content:"\f87b"}.fa-phone-volume:before{content:"\f2a0"}.fa-photo-video:before{content:"\f87c"}.fa-php:before{content:"\f457"}.fa-pied-piper:before{content:"\f2ae"}.fa-pied-pip...

                  }
                }),
            executor);
    ListenableFuture<?> statusFuture = closingFuture.statusFuture();
    waiter.awaitStarted();
    assertThat(statusFuture.isDone()).isFalse();
    waiter.awaitReturned();
    assertThat(getUninterruptibly(statusFuture)).isNull();
  }

  public void testStatusFuture_failure() throws Exception {
    ClosingFuture<String> closingFuture =

                this.fileLocator.updateType(response.getFileType());
                info = response;
                fileSize = response.getDataSize();

                // this is so damn unreliable, needs another race-prone query if required
                haveAttributes = false;

                // This seems to be the only way to obtain a reliable (with respect to locking) file size here