Hi everybody,

On a Magnolia 5.0 instance in production, operations like deleting an item 
(dam, website, etc.) don't work anymore. Magnolia shows a red bar at the top, 
saying [quote]An error occurred while executing an action.[/quote] and only 
containing [quote]java.lang.NullPointerException[/quote] as message text.

However, the log suggests that confirmation dialogs cannot be loaded:

[code]2014-04-22 14:48:48,689 ERROR 
fo.magnolia.ui.contentapp.browser.BrowserPresenter: An error occurred while 
executing action [confirmDeleteAsset]
info.magnolia.ui.api.action.ActionExecutionException: 
java.lang.NullPointerException
        at 
info.magnolia.ui.framework.action.ConfirmationAction.execute(ConfirmationAction.java:104)
        at 
info.magnolia.ui.api.action.AbstractActionExecutor.execute(AbstractActionExecutor.java:75)
        at 
info.magnolia.ui.contentapp.browser.BrowserPresenter.executeAction(BrowserPresenter.java:348)
        at 
info.magnolia.ui.contentapp.browser.BrowserPresenter.onActionBarSelection(BrowserPresenter.java:314)
        at 
info.magnolia.ui.contentapp.browser.BrowserViewImpl$1.contextMenuItemClicked(BrowserViewImpl.java:126)
...
Caused by: java.lang.NullPointerException
        at java.text.MessageFormat.applyPattern(MessageFormat.java:436)
        at java.text.MessageFormat.<init>(MessageFormat.java:363)
        at java.text.MessageFormat.format(MessageFormat.java:835)
...[/code]

This problem appears on any account, including superuser. Restarting Magnolia 
does not change anything. There was no recent update of any modules or other 
code change when this started, so what else could have caused it?

I'm aware an upgrade to the latest Magnolia version could solve it, but it's 
always a risk updating a production system.

Cheers,
Cedric

-- 
Context is everything: 
http://forum.magnolia-cms.com/forum/thread.html?threadId=3964c815-e9e0-4a08-a0ee-61113eb5ed10


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