grails

Anyone run into an NPE on hibernate's OptimisticLockStyle?
I'm on grails 6.2.3 with hibernate5 8.1.1 and hibernate-core 5.6.15.Final, trying to run bootRun
```Caused by: java.lang.NullPointerException: Cannot invoke "org.hibernate.engine.OptimisticLockStyle.isAllOrDirty()" because "this.optimisticLockStyle" is null```

It seems to be the same issue as this old one, except the fix before was just to upgrade to the latest version of hibernate-core that matches grails hibernate5. In this case I'm already on the latest
<https://github.com/grails/grails-core/issues/11882>

It looks like a dependency issue to me, have you tried forging a blank app, see if it runs, and if so using its Gradle `dependencies` section? <https://start.grails.org/>

Discovered that the issue was related to a domain object we had that had a column named `version` that wasn't actually a hibernate version. This worked fine on grails 3 and older hibernate but not after upgrading (currently working through issues with upgrade).
Renaming the variable to `vers` and using a mapping like this fixed it:
```    static mapping = {
        version false
        vers column: 'version'
    }```
