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.
If it keeps saying the user name "hibernate" not authenticated, then perhaps you haven't been setting the user name. Check the properties/config file, and use the debugger to check that when you attempt to connect it is using the correct values, remember you can have properties as well as xml config, with the latter overriding properties, so make sure that isn't happening.