This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
There is no password set for the database. that is why I have not given the password. And After I did the changes to the persistance .xml as indicated by James Still I am getting the exception? I did the both the changes. But still it gives the same problem.
The Exception is
Just to check whether I am using proper driver and url, I tried jdbc program with connection and manager, It works perfectly fine. I don't understand where the problem is?