problem getting configuration in hibernate 3.0

[subbarao dachepalli]

Hi all

I am new hibernate.I tried to do some simple program.
But i got null pointer exception.

my code is :
Configuration cfg = new Configuration().addClass(Contact.class);
System.out.println("-----c-"+cfg);
cfg.configure("/hibernate.cfg.xml");
SessionFactory sessionFactory = cfg.buildSessionFactory();
session =sessionFactory.openSession();

I am not able to get that println.(I added that println to know where exactly the null pointer exception is throwing).

can any body tell me where iam going wrong
Thanks in advamce