[hibernate-issues] [Hibernate-JIRA] Updated: (HHH-2928) optimizers for enhanced id generators should be synchronized against multi-threaded access

[Maciej Baranowski (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2928?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Maciej Baranowski updated HHH-2928:
-----------------------------------

    Attachment: NoopOptimizerTest.java

Here is a quite simple test case which should help to reproduce the problem. As I mentioned earlier it may be necessary  to add some Thread.sleep() before line:

            return make( lastSourceValue );

in NoopOptimizer.generate() method.



> optimizers for enhanced id generators should be synchronized against multi-threaded access
> ------------------------------------------------------------------------------------------
>
>                 Key: HHH-2928
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2928
>             Project: Hibernate3
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.2.5
>            Reporter: Steve Ebersole
>            Assignee: Steve Ebersole
>             Fix For: 3.2.6, 3.3
>
>         Attachments: NoopOptimizerTest.java
>
>
> Currently the optimizers do not serialize access to their internal state when applying their optimizations.  This only affects the pooled and hilo optimizers.

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