System Error for Users and Security, java.lang.NullPointerException

Question

Hello everyone,

When I want to do administration on the user profiles for Jira and Confluence I got the following error:

A system error has occurred — our apologies!

Cause:

java.lang.NullPointerException
    at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:187)

Stack Trace:[hide]

java.lang.NullPointerException

(....)

Has someone an idea why this happens ?

I read about that indexing might be the problem, but when I check the index, it shows 100%, for me it means that everything is fine with indexing.

Any other solutions ?

Thank you

Best regards
Seraina

Seraina · Answer

@Nic Brough -Adaptavist-hank you. I have found out, that the user directories were not working properly.

This means (for user facing the same problem in the future):

Enable external directory by enabling external user management on Jira.

Follow this step by step:

https://confluence.atlassian.com/display/CONF210/Delegate+user+management+to+use+JIRA+logins?_ga=2.218683673.1897144652.1554102947-1950230685.1542965051#DelegateusermanagementtouseJIRAlogins-StepEight:ActivatingExternalUserManagement

Thank you.

Nic Brough -Adaptavist- · Answer

Ah, ok.  This is something that can happen when something changes in Crowd and Confluence falls over (I'm not an expert on the internals, I can't start on what the root problem might be)

Try:

Clearing the caches (Admin -> caches -> flush all)

Re-indexing (100% indexed does not mean it's healthy, just that there is no indexing in progress.  Admin -> Indexing, re-index all, recommended when users are not highly active, as their searches and reporting might fail)

You might also want to remove and re-connect the user directory, but I'd try that last, and after a full backup of both systems.

Seraina · Answer

I am using Remote JIRA Directory with Type Atlassian Crowd.