@PersistenceContext not injected in target bean when bean is intercepted

Say you have this bean :

@MyInterceptorBinding
public class MyServiceBean implements MyService {

@PersistenceContext
protected EntityManager entityManager;

@Inject @Any
private Event<MyEvent> myEvent;

public Object persist(Object obj)

{ entityManager.persist(obj); myEvent.fire(new MyEvent()); return obj; }

}

Where @MyInterceptorBinding is a simple interceptor binding with a trivial interceptor implementation :

@MyInterceptorBinding @Interceptor
public class MyInterceptor {

@AroundInvoke
public Object doInvoke(InvocationContext context) {
Object result = null;

try

{ return context.proceed(); }

catch (Exception e)

{ throw new RuntimeException("error", e); }

}

The MyEvent field of the bean is correctly injected, but the entityManager is null.
Note that if injecting @PersistenceContext EntityManager entityManager in the interceptor works fine.

When the bean is not intercepted, its entityManager field is correctly injected.