How to listen to WikiPageEvent.PAGE_DELETED

Hello!

In the tree application for my JSPWiki I listen to WikiPageEvents. This is necessary because of update the tree nodes. In my listener method I  get all kinds of WikiPageEvents but I never got a WikiPageEvent.PAGE_DELETED or a WikiPageEvent.PAGE_DELETE_REQUEST when  a Page  was deleted. Also for WikiPageRenameEvent when a page was renamed.  Is it necessary to listen for a special WikiEvent to get this events.

Thanks!