Hi
Just passed the JPA certification (1Z0-898) today with 100%. This was made possible by the great enthuware mock exams.
This is a summary of what I did to prepare for the exam. I have more or less worked with hibernate for about 3 years (but not in great detail). I basically did two things to prepare; read Pro JPA 2 by Mike Keith very thoroughly and do the mock exams from enthuware.
The JPA textbook is very well written and covers everything needed for the exam. However, I cannot thank the developers of the enthuware mock exams enough. This is the fourth time I am using their product, and it really makes a difference. For others taking the exam, make sure to buy both the book and the mock exams, and make sure to read thoroughly through all the feedback on the mock exams. It's worth it.
Thanks.
Regards,
Andreas