Injections not working for certain bean methods

@RequestScoped
@Named
public class Foo implements Map<String, ResourceBundle>, Serializable
{
   @Inject
   BeanManager beanManager;

   public int size()
   {
      // TODO Auto-generated method stub
      return 0;
   }

   public boolean isEmpty()
   {
      // TODO Auto-generated method stub
      return false;
   }

   public boolean containsKey(Object key)
   {
      // TODO Auto-generated method stub
      return false;
   }

   public boolean containsValue(Object value)
   {
      // TODO Auto-generated method stub
      return false;
   }

   public ResourceBundle get(Object key)
   {
      if (beanManager == null)
      {
         throw new NullPointerException();
      }
      return null;
   }

   public ResourceBundle put(String key, ResourceBundle value)
   {
      // TODO Auto-generated method stub
      return null;
   }

   public ResourceBundle remove(Object key)
   {
      // TODO Auto-generated method stub
      return null;
   }

   public void putAll(Map<? extends String, ? extends ResourceBundle> m)
   {
      // TODO Auto-generated method stub

   }

   public void clear()
   {
      // TODO Auto-generated method stub

   }

   public Set<String> keySet()
   {
      // TODO Auto-generated method stub
      return null;
   }

   public Collection<ResourceBundle> values()
   {
      // TODO Auto-generated method stub
      return null;
   }

   public Set<java.util.Map.Entry<String, ResourceBundle>> entrySet()
   {
      // TODO Auto-generated method stub
      return null;
   }

}

@RunWith(Arquillian.class)
public class StrangeTest
{
   @Inject
   Foo foo;

   @Deployment
   public static Archive<?> deploy()
   {
      return ShrinkWrap.create(BeanArchive.class).addClass(Foo.class);
   }

   @Test
   public void testAccess()
   {
      Assert.assertNull(foo.get("bleh"));
   }
   
}