[hibernate-issues] [Hibernate-JIRA] Created: (HHH-6829) PooledLoOptimizer.generate() should be synchronized

[Manuel Dominguez Sarmiento (JIRA)]

PooledLoOptimizer.generate() should be synchronized
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                 Key: HHH-6829
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6829
             Project: Hibernate Core
          Issue Type: Bug
          Components: core
    Affects Versions: 3.6.8
            Reporter: Manuel Dominguez Sarmiento
            Priority: Critical


We recently switched to this ID generation optimizer in our highly concurrent production platform, and began getting random id / PK collision errors very often.

Checking the code, it's pretty obvious that the problem lies with generate() not being synchronized. All other optimizers (PooledOptimizer, LegacyHiLoAlgorithmOptimizer, HiLoOptimizer, etc.) are synchronized - PooledLoOptimizer should be as well.

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