Why do I get a “Null value was assigned to a property of primitive type setter of” error message when using HibernateCriteriaBuilder in Grails

Question

I get the following error when using a primitive attribute in my grails domain object:

Null value was assigned to a property of primitive type setter of MyDomain         


        

Answer 1

Do not use primitives in your Entity classes, use instead their respective wrappers. That will fix this problem.

Out of your Entity classes you can use the != null validation for the rest of your code flow.