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HIbernate Mapping problem

 
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Hello

Can someone help me with this.
I have a table Users and another one roles (mapped) - one role can be done by several users

Thsi is my Users Entity


An my Roles entity



When i use spring hibernate i want to define user details with roles (1 or 2) but i receive a null field in my users table

userId=[null] username=[man] password=[123] enabled=[true]

What's wrong please??

Thanks
 
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