[rfc][icedtea-web][policyeditor] Fix for NPE when trying to open a file

[Jiri Vanek]

On 03/27/2014 03:45 PM, Andrew Azores wrote:
> Hi,
>
> This workflow:
> 1) Open PolicyEditor with no filepath
> 2) Make changes
> 3) File>Open, without saving first
> 4) Select "Yes" to save changes
>
> Currently results in:
> 5) NPE
>
> due to the file field still being null. With this patch, it is the following:
> 5) File chooser appears for Save As action
> 6) Save file somewhere, or cancel
> 7) If file chooser was not cancelled, a new file chooser appears for the Open action. If it was
> cancelled, return back to the editor, with changes preserved but not saved to file
>
> Thanks,
>
Same conditions as for " Checkbox and codebase list bug fixes" Then ok to push.