![java - PESSIMISTIC_WRITE locking not working with Spring JPA Repository and Oracle 12c - Stack Overflow java - PESSIMISTIC_WRITE locking not working with Spring JPA Repository and Oracle 12c - Stack Overflow](https://i.stack.imgur.com/hs29Q.png)
java - PESSIMISTIC_WRITE locking not working with Spring JPA Repository and Oracle 12c - Stack Overflow
![6.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.4.1.RELEASE documentation 6.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.4.1.RELEASE documentation](https://terasolunaorg.github.io/guideline/5.4.1.RELEASE/en/_images/Pessimistic-lock-timeout.png)
6.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.4.1.RELEASE documentation
![6.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.2.1.RELEASE documentation 6.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.2.1.RELEASE documentation](https://terasolunaorg.github.io/guideline/5.2.1.RELEASE/en/_images/Optimistic-lock-flow.png)
6.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.2.1.RELEASE documentation
![6.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.2.1.RELEASE documentation 6.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.2.1.RELEASE documentation](https://terasolunaorg.github.io/guideline/5.2.1.RELEASE/en/_images/ExclusionControl-problem4.png)
6.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.2.1.RELEASE documentation
![6.3. Database Access (JPA) — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.2.0.RELEASE documentation 6.3. Database Access (JPA) — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.2.0.RELEASE documentation](https://terasolunaorg.github.io/guideline/5.2.0.RELEASE/en/_images/dataaccess_jpa_mapping.png)
6.3. Database Access (JPA) — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.2.0.RELEASE documentation
![6.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.2.1.RELEASE documentation 6.4. Exclusive Control — TERASOLUNA Server Framework for Java (5.x) Development Guideline 5.2.1.RELEASE documentation](https://terasolunaorg.github.io/guideline/5.2.1.RELEASE/en/_images/ExclusionControl-problem1.png)