Hibernate Mapped Domain Classes Not Working

Grails 3.3.3
annotated Java classes in Sources:main/java
grails-app/conf/hibernate/hibernate.cfg.xml

```

```

def person = new Person(name: "Tester")
person.save()

It's not woking with hibernate.cfg.xml
--No signature of method: ks.nms.test.Person.save() is applicable for argument types: ()
why ???

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### Steps to Reproduce

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### Expected Behaviour

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### Actual Behaviour

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### Environment Information

- **Operating System**: TODO
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### Example Application

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Start with the annotated Java Person class, grails-app/conf/hibernate/hibernate.cfg.xml, and the person.save() call shown in the report. Reproduce the behavior with the stated Grails version and determine the missing configuration or integration detail; done requires a complete reproduction and a confirmed resolution.

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