Existing code didn't work with hibernate 5.0.11 but worked for 5.0.12. Using INSTANCE in DefaultCacheKeysFactory class instead of static methods makes it possible to work with all hibernate 5.0.x versions. Yes, the reason is version 5.0.11 which is used in some Spring Boot versions by default, DefaultCacheKeysFactory does not have static methods which is used in the codes here.
Existing code didn't work with hibernate 5.0.11 but worked for 5.0.12. Using INSTANCE in DefaultCacheKeysFactory class instead of static methods makes it possible to work with all hibernate 5.0.x versions. Yes, the reason is version 5.0.11 which is used in some Spring Boot versions by default, DefaultCacheKeysFactory does not have static methods which is used in the codes here.