AbstractValueAdaptingCache#toStoreValue should throw an exception if the value is null and allowNulls is false [SPR-15173] #19739
Description
Stéphane Nicoll opened SPR-15173 and commented
If a Cache is configured to not allow null values, toStoreValue can still return null instead of throwing an exception. This leads to a non informative exception message if the underlying cache provider tries to store the value down the road.
Affects: 4.3.5
Issue Links:
- DATAREDIS-606 RedisCache Tests in Spring Data Redis 2.0.x builds fail testing null values
- AbstractValueAdaptingCache does not allow for flexible null value serialization [SPR-15693] #20252 AbstractValueAdaptingCache does not allow for flexible null value serialization