So before anyone thinks he is referring to Java on the enterprise in general; he is not.

Java EE 6 is the current Java enterprise solution.

J2EE is the old, e.g. 1.4 or 1.5. Java EE 6 is far better, and technologies like JPA and JTA are quite powerful. There's also a lot less boilerplate code than before. As another poster said, Java EE 6 rocks for enterprise development, particularly with large teams.