Great! Thank you very much. When I get back to the office in a week then I'll upgrade. Upgrading won't be a big problem.

Resolving this as a duplicate of JRA-13655

Hi Hendrik,

Thanks for logging this.

This issue was really being caused by a number of duplicate language files being present. This is how the internationalised message is being resolved:

1. Check for a message file with the name of the webaction and the user's locale: AttachFile_en_UK.properties
2. If not found check for the default locale: AttachFile_da_DK.properties
3. If not found check for the parent class of the web-action: JiraWebActionSupport_en_UK.properties
4. If not found check for the parent class of the web-action with the default locale: JiraWebActionSupport_da_DK.properties

The problem is that there is still a stale AttachFile_da_DK.properties file around in JIRA 3.11 but no AttachFile_en_UK.properties. This means that the lookup in step 1 above fails, but step 2 succeeds, which is why the message is being shown in Danish.

This issue has been fixed in JIRA 3.12. Please upgrade to JIRA 3.12.x or remove the AttachFile*.properties language bundles (follow the instructions for translating JIRA). If upgrading to JIRA 3.12.x is a huge problem for you, let us know and we'll make a patch available.

Cheers,
Andreas

Hi,

I have tried to produce same environment from the user. However, I do not able to produce the exact error which attachment (locale_bug.PNG) display on this issue.

I found that JIRA does not pick up language configure in user profile or general configuration, when startup JIRA with -Duser.language=da -Duser.country=DK. See screenshot

Cheers,
Eddie