Add Hibernate 7 batches 2-6, batch 7, and batch 8: mapping styles, JPA annotations, natural IDs, @Immutable, stored procedures, in-memory test databases, JNDI mocking, proxies, associations, temporal mapping, named queries, HQL, Criteria API, EntityManager bootstrapping, Ehcache 3 L2 cache configuration, HikariCP connection pooling, Hibernate Validator CDI integration, aggregate functions, sorting, pagination, interceptors, and Hibernate Search 8 (Hibernate 7.4.5.Final + Spring Boot 4.1.1 + JDK 25)

docs/output/testdb-jcache-classpath-pollution.txt

@@ -0,0 +1,17 @@
+The failure as it actually appeared in a full 'mvn -B test' run of this repository,
+before hibernate.cache.use_second_level_cache was pinned to false in application.yml.
+It is order-dependent: running the two classes on their own passes.
+
+[ERROR]   ImmutableEntityTest.nativeSqlUpdate_onImmutableEntity_alwaysWorks:184 » Rollback Error while committing the transaction [Unable to perform afterTransactionCompletion callback: Cache[com.ank
+
+[ERROR] Tests run: 140, Failures: 0, Errors: 1, Skipped: 0
+
+Why every Spring context in the project had a second-level cache at all:
+$ mvn -o -B test -Dtest=JCacheOnClasspathAutoEnablesL2Test
+second-level cache enabled = true
+region factory            = org.hibernate.cache.jcache.internal.JCacheRegionFactory
+explicitly configured?    = true
+
+Nothing in src/main/resources/application.yml mentions caching:
+$ grep -ic cache src/main/resources/application.yml
+0