if (valueReference.isLoading()) {
              return waitForLoadingValue(e, key, valueReference);
            }
          }
        }

        // at this point e is either null or expired;
        return lockedGetOrLoad(key, hash, loader);
      } catch (ExecutionException ee) {
        Throwable cause = ee.getCause();
        if (cause instanceof Error) {

it, busily painting them red.  Alice thought this a very curious
thing, and she went nearer to watch them, and just as she came up
to them she heard one of them say, `Look out now, Five!  Don't go
splashing paint over me like that!'

  `I couldn't help it,' said Five, in a sulky tone; `Seven jogged
my elbow.'

  On which Seven looked up and said, `That's right, Five!  Always
lay the blame on others!'

            if (valueReference.isLoading()) {
              return waitForLoadingValue(e, key, valueReference);
            }
          }
        }

        // at this point e is either null or expired;
        return lockedGetOrLoad(key, hash, loader);
      } catch (ExecutionException ee) {
        Throwable cause = ee.getCause();
        if (cause instanceof Error) {

it, busily painting them red.  Alice thought this a very curious
thing, and she went nearer to watch them, and just as she came up
to them she heard one of them say, `Look out now, Five!  Don't go
splashing paint over me like that!'

  `I couldn't help it,' said Five, in a sulky tone; `Seven jogged
my elbow.'

  On which Seven looked up and said, `That's right, Five!  Always
lay the blame on others!'