if i am wrong then i will not post any more question now !
but i don't think it is un-important.because something was missing in hibernate.properties that's why new features comes into picture.
see my another question : Dirty Checking not Achieving ?
as i have posted the notes that from the documents i was not able to achieve while something wrong has been written in
doc(net also).
but i have tried from my end and found the solution..but no one has posted the correct answer.