From what I can tell, this was caused by this change: https://github.com/hibernate/hibernate-orm/commit/b8674563d27611c09ed50086b2b4534031f07204#diff-59b8d24e6179e8fa85722b3e4641de0cR104
... which is a copy/paste of this other change (hence JCache being incorrectly mentioned) : https://github.com/hibernate/hibernate-orm/pull/2197/files#diff-2efaab9a5a67058baa5429e533d718ceR238
... which was supposed to solve this problem: HHH-11953 Closed
... which is a legitimate issue, but I wonder if such a fix with such impact on users has its place in a minor release.

Note that this ticket can very probably be considered a duplicate of HHH-12531 Open .