Had the same problem. Found solution under:
Here's what it says in the general FAQ:
Q : I can't see the XDoclet/Packaging configurations in my Project properties ?
A : There are two conditions needed to view these two items in the properties page:
* You must be in the Java perspective
* You must use the Package Explorer View.
If one of these conditions is missing, you won't be able to access the configurations.
That works great, thanks