}
@Test(expected = PreloadException.class)
public void exceptionsArePropagated() throws PreloadException {
preloader.tasks.put(PRELOAD_STRING_KEY, new TestPreloadCallable(null));
PreloaderService service = new ConcurrentPreloaderService(new TestExecutorService(),
Arrays.<Preloader>asList(preloader));
service.preload(null, null).getData(PRELOAD_STRING_KEY);
}