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6.3. Database Access (JPA) — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.3.1.RELEASE documentation
Isolation support for JPA with Hibernate EntityManager 4 [SPR-11942] · Issue #16559 · spring-projects/spring-framework · GitHub
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java - PESSIMISTIC_WRITE locking not working with Spring JPA Repository and Oracle 12c - Stack Overflow
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