why use the JiwaImportQManager to import XML documents?
Because that's whats provided for us in the standard File Watcher plugin. I'm sure I'm not the only one who takes that as the "best practise" then just customizes around that ideal.
If there's a better way of importing XML documents, it might be an opportunity to tweak the standard File Watcher plugin to show us.
I'll try wrapping that line in a try catch.