Begin forwarded message:
> -------- Пересылаемое сообщение--------
> 17.07.2014, 19:20, "Roman Leventov" <leven...@ya.ru>:
>
> Map.compute() Javadoc has the following paragraph:
> --------
> The default implementation is equivalent to performing the following steps
> for this map, then returning the current value or null if absent:
>
> V oldValue = map.get(key);
> V newValue = remappingFunction.apply(key, oldValue);
> if (oldValue != null ) {
> if (newValue != null)
> map.put(key, newValue);
> else
> map.remove(key);
> } else {
> if (newValue != null)
> map.put(key, newValue);
> else
> return null;
> }
> --------
>
> But this code don't correspond neither verbal description of the behaviour
> nor the actual default implementation in java.util.Map. If the oldValue is
> null and newValue is null, map should still remove the key, not to just
> `return null;`
>
