Showing results for 
Search instead for 
Did you mean: 
Sign up Log in

Earn badges and make progress

You're on your way to the next level! Join the Kudos program to earn points and save your progress.

Deleted user Avatar
Deleted user

Level 1: Seed

25 / 150 points

Next: Root


1 badge earned


Participate in fun challenges

Challenges come and go, but your rewards stay with you. Do more to earn more!


Gift kudos to your peers

What goes around comes around! Share the love by gifting kudos to your peers.


Rise up in the ranks

Keep earning points to reach the top of the leaderboard. It resets every quarter so you always have a chance!


Come for the products,
stay for the community

The Atlassian Community can help you and your team get more value out of Atlassian products and practices.

Atlassian Community about banner
Community Members
Community Events
Community Groups

Crowd XML backup failed with NPE

We are currently evaluating Atlassian Crowd. When I tried to take a XML backup, a 'java.lang.NullPointerException' occured. (full stack trace: (crowd-error.txt) )

We have only one user in the crowd internal directory and no groups other than default crowd-administrators group. Also, we have one Windows Active DIrectory configured (connector - not delegated authentication).

Could you please help me to find the root cause for this?

3 answers

1 accepted

1 vote
Answer accepted

I tried to reproduce this with Crowd 2.7.1 (in use by you according to your stack trace) but wasn't able to. I used the embedded database and configured Crowd to have the internal directory plus an active directory connector.

Would you please tell me what database you have Crowd connected to, and if possible run the SQL select * from cwd_directory; on your Crowd database? That stack trace seems to indicate that the description for a directory is null, so I'd be interested to see if that is actually the case.

After clarification: Ah yep, Oracle would do the trick, and as you worked out you can fix it by setting a non-empty description. Looks like another occurrence of this old Oracle quirk; CWD-3216 would be appropriate to vote on if you'd like to see this fixed.

We use Oracle 11.2 . Descriptions for both directories were null.

Then I put descriptions for both, and then XML backup worked fine.

I think this is a bug in Crowd application. If description is supposed to be a required field, field validaiton must be done.

Please convert your comment to an answer so I can accept it. :)


Other information:

  • No connected applications.
  • Active Directory connected with cache enabled.
  • This is just a basic instance.
  • Crowd version: 2.7

Suggest an answer

Log in or Sign up to answer

Atlassian Community Events