This week's giveaway is in the Spring forum.
We're giving away four copies of REST with Spring (video course) and have Eugen Paraschiv on-line!
See this thread for details.
The moose likes Spring and the fly likes nullpointer with @Autowired AuthenticationManager Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of REST with Spring (video course) this week in the Spring forum!
JavaRanch » Java Forums » Frameworks » Spring
Bookmark "nullpointer with @Autowired AuthenticationManager" Watch "nullpointer with @Autowired AuthenticationManager" New topic

nullpointer with @Autowired AuthenticationManager

Christopher Whu
Ranch Hand

Joined: Sep 03, 2008
Posts: 80
This is making me crazy - am trying to integrate a custom Auth bean and i am getting this a null pointer error when i reference my autowired auth manager.

the null pointer is thrown at:
Authentication result = authenticationManager.authenticate(request);

my bean

my app context:

The bean must see AM in my context because if i change the alias of the AuthenticationManager in my context the app wont compile. please advise....
Bill Gorder

Joined: Mar 07, 2010
Posts: 1682

I don't see the problem either. I know this sounds strange but did you c+p any of the stuff in the code below? If you did delete those pieces and re-type it out. I have had weird stuff like this happen to me when I have copied stuff into eclipse from a different place. It looks exactly the same but re-typing it makes it work

[How To Ask Questions][Read before you PM me]
I agree. Here's the link:
subject: nullpointer with @Autowired AuthenticationManager
It's not a secret anymore!