I see that I cannot do a lookup of cdi BeanManager in wildfly 9.0.2. Here how I do the lookup and the injection in a simple servlet sample:

import javax.enterprise.inject.spi.BeanManager;

....

@Inject

private BeanManager beanManager;

......

protected void doGet(HttpServletRequest request, HttpServletResponse response)

            throws ServletException, IOException {

           try {

               InitialContext.doLookup("java:comp/BeanManager");

               System.out.println(beanManager);

            } catch (NamingException e) {

                  e.printStackTrace();

            }

}

.....

Either the lookup or the injection no return results. Do I miss something?