[hibernate-dev] 5.3 - hibernate-ehcache

Given the changes to the second-level cache SPI, I wonder if we want to take that as an opportunity to consider dropping the `hibernate-ehcache` module? There are a few reasons I am considering this... 1. We have the JCache integration in place and users can use Ehcache via that support already. 2. This is really the same discussion we had wrt Spring Cache[1]. IMO the answer should be consistent. We moved hibernate-infinispan for many of these same reasons... 3. A large part of the argument for keeping hibernate-ehcache was that it is already in place and therefore did not require much effort to support/maintain. However, given the new SPI there is actually a pretty big effort to adapt hibernate-ehcache to those new SPIs. So far I am the one doing that - which in and of itself is fine since I am the one who changed the SPIs ;) But it makes me think it is far less of a maintenance effort just to drop it and support just hibernate-ehcache. WDYT? [1] https://github.com/hibernate/hibernate-orm/pull/1639