#fixed code
                               @SuppressWarnings("unchecked")
   protected void createBean(AbstractClassBean<?> bean, Set<AbstractBean<?, ?>> beans)
   {
      beans.add(bean);
      manager.getResolver().addInjectionPoints(bean.getInjectionPoints());
      for (AnnotatedMethod<Object> producerMethod : bean.getProducerMethods())
      {
         ProducerMethodBean<?> producerMethodBean = createProducerMethodBean(producerMethod, bean, manager);
         beans.add(producerMethodBean);
         manager.getResolver().addInjectionPoints(producerMethodBean.getInjectionPoints());
         registerEvents(producerMethodBean.getInjectionPoints(), beans);
         log.info("Web Bean: " + producerMethodBean);
      }
      for (AnnotatedField<Object> producerField : bean.getProducerFields())
      {
         ProducerFieldBean<?> producerFieldBean = createProducerFieldBean(producerField, bean, manager);
         beans.add(producerFieldBean);
         log.info("Web Bean: " + producerFieldBean);
      }
      for (AnnotatedMethod<Object> initializerMethod : bean.getInitializerMethods())
      {
         for (AnnotatedParameter<Object> parameter : initializerMethod.getAnnotatedParameters(Observable.class))
         {
            registerEvent(parameter, beans);
         }
      }
      for (AnnotatedItem injectionPoint : bean.getInjectionPoints())
      {
         if ( injectionPoint.isAnnotationPresent(Observable.class) )  
         {
            registerEvent(injectionPoint, beans);
         }
         if ( injectionPoint.isAnnotationPresent(Obtainable.class) )  
         {
            InstanceBean<Object, Field> instanceBean = createInstanceBean(injectionPoint, manager);
            beans.add(instanceBean);
            log.info("Web Bean: " + instanceBean);
         }
      }
      for (AnnotatedMethod<Object> observerMethod : bean.getObserverMethods())
      {
         ObserverImpl<?> observer = createObserver(observerMethod, bean, manager);
         if (observerMethod.getAnnotatedParameters(Observes.class).size() == 1)
         {
            registerObserver(observer, observerMethod.getAnnotatedParameters(Observes.class).get(0).getType(), observerMethod.getAnnotatedParameters(Observes.class).get(0).getBindingTypesAsArray());
         }
         else
         {
            throw new DefinitionException("Observer method can only have one parameter annotated @Observes " + observer);
         }
         
      }
      log.info("Web Bean: " + bean);
   }
#vulnerable code 
                               @SuppressWarnings("unchecked")
   protected void createBean(AbstractClassBean<?> bean, Set<AbstractBean<?, ?>> beans)
   {
      beans.add(bean);
      manager.getResolver().addInjectionPoints(bean.getInjectionPoints());
      for (AnnotatedMethod<Object> producerMethod : bean.getProducerMethods())
      {
         ProducerMethodBean<?> producerMethodBean = createProducerMethodBean(producerMethod, bean, manager);
         beans.add(producerMethodBean);
         manager.getResolver().addInjectionPoints(producerMethodBean.getInjectionPoints());
         for (AnnotatedItem injectionPoint : producerMethodBean.getInjectionPoints())
         {
            if ( injectionPoint.isAnnotationPresent(Observable.class) )
            {
               EventBean<Object, Method> eventBean = createEventBean(injectionPoint, manager);
               beans.add(eventBean);
               log.info("Web Bean: " + eventBean);
            }
         }
         log.info("Web Bean: " + producerMethodBean);
      }
      for (AnnotatedField<Object> producerField : bean.getProducerFields())
      {
         ProducerFieldBean<?> producerFieldBean = createProducerFieldBean(producerField, bean, manager);
         beans.add(producerFieldBean);
         log.info("Web Bean: " + producerFieldBean);
      }
      for (AnnotatedItem injectionPoint : bean.getInjectionPoints())
      {
         if ( injectionPoint.isAnnotationPresent(Observable.class) )  
         {
            EventBean<Object, Field> eventBean = createEventBean(injectionPoint, manager);
            beans.add(eventBean);
            log.info("Web Bean: " + eventBean);
         }
         if ( injectionPoint.isAnnotationPresent(Obtainable.class) )  
         {
            InstanceBean<Object, Field> instanceBean = createInstanceBean(injectionPoint, manager);
            beans.add(instanceBean);
            log.info("Web Bean: " + instanceBean);
         }
      }
      for (AnnotatedMethod<Object> observerMethod : bean.getObserverMethods())
      {
         ObserverImpl<?> observer = createObserver(observerMethod, bean, manager);
         if (observerMethod.getAnnotatedParameters(Observes.class).size() == 1)
         {
            registerObserver(observer, observerMethod.getAnnotatedParameters(Observes.class).get(0).getType(), observerMethod.getAnnotatedParameters(Observes.class).get(0).getBindingTypesAsArray());
         }
         else
         {
            throw new DefinitionException("Observer method can only have one parameter annotated @Observes " + observer);
         }
         
      }
      log.info("Web Bean: " + bean);
   } 
                            #location 11 
                            #vulnerability type NULL_DEREFERENCE