I have a many to one relationship between 2 classes A and B(a->B). I want to use annotations unfortunately there are many classes to be converted in my project( hibernate + spring integrated ). I ended up changing only Class B to annotations and class A will have the old hbm mapping file itself..

While doing so i get an exception creating sessionFactory "An association from the table A refers to an unmapped class: B"

Is it not possible to use annotation and hbm configuration mixed?