Is Reflection allowed within EJBs?

I am wondering, which portions of reflection are allowed to be used within EJBs (EJB3.x), which ones are discouraged to be used and which ones are forbidden.

I searched the EJB core specification without finding real hints on that.

I personally believe, that avoiding the use of reflection outside frameworks is good programming style, but the question remains, which portions are allowed by standard?

Thanks in advance!