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Add Hibernate 7 batches 2-5: mapping styles, JPA annotations, natural IDs, @Immutable, stored procedures, in-memory test databases, JNDI mocking, proxies, associations, temporal mapping and named queries (Hibernate 7.4.5.Final + Spring Boot 4.1.1 + JDK 25)

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asmhatre
2026-09-06 10:30:19 +05:30
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docs/output/association-multiplebag-and-cartesian.txt
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Fix #2 (two queries): 2 queries fired, books=4, awards=3
Cartesian product: 4 books x 3 awards for 1 author -> raw SQL join rows = 12, distinct entities returned = 1
MultipleBagFetchException reproduction -- wrapper class: java.lang.IllegalArgumentException
MultipleBagFetchException reproduction -- root cause class: org.hibernate.loader.MultipleBagFetchException
MultipleBagFetchException reproduction -- verbatim message: cannot simultaneously fetch multiple bags: [com.ankurm.hibernatedemo.association.BagAuthorList.awards, com.ankurm.hibernatedemo.association.BagAuthorList.books]
Fix #1 (Set instead of List): 1 distinct authors returned, 1 queries fired