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.
I have a bunch of entities with persistence annotations and all worked well. Now that I need to remove the annotation and instead, use orm.xml to define the mapping. I did that for one of the entities and tried to deploy to JBoss 4.2.0 GA, but got an exception.