The "netbeans-se" package should have been called "netbeans-javase", since NetBeans is about more than just Java. For this reason, I've just uploaded a "netbeans-javase" package to AUR.
The "netbeans-se" package was orphaned by its original maintainer, so I adopted it temporarily. Please don't screw this up and remove the wrong one! The "netbeans-se" package needs deleting.