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

There are two way

• Make sure that db column is not allowed null
• User Wrapper classes for the primitive type variable like private int var; can be initialized as private Integer var;