Hi Mihai,
I think that in the extended persistence context then you need to commit the changes, manually
what do you mean by "manually" ? Consider the following scenario:
Given a CMT stateful session bean with extended pesistence context and two business methods m1, m2.
m1 reads data (using find or JPQL queries) and manipulates them with transaction attribute never.
m2 uses transaction attribute Requires_New.
If the client first calls m1 and afterwards m2 the changes from m1 will be commited by the end of m2.