HIbernate 5: generator class=“sequence” not working

Question

I have following mapping:

Answer 1

You have two options:

1. You set the hibernate.id.new_generator_mappings configuration property to false and switch back to the old identifier generators

2. You change the mapping as follows, from this:

   
       MY_SEQUENCE
   
   

   to:

   
       none
       1
       MY_SEQUENCE