Hibernate :: null ID Generated

If you have a composite key in a specific table and if you are trying to insert data into that table using table references, you may get an error 

null ID Generated

To avoid this, we have to use the ID class generated for that table like this.

IDClass idClassObj = new IDClass([Arguments list]);
tableClassObj.setId(idClassObj);

That is all.

Hope this helps you.

Thank you for this SOF answer