} catch (DataObjectNotFoundException ex) {
return 0;
}
EditorCookie ec = (EditorCookie) dataObject.getCookie(EditorCookie.class);
if (ec == null) return 0;
ec.prepareDocument().waitFinished();
Document d = ec.getDocument();
if (!(d instanceof StyledDocument)) return 0;
StyledDocument sd = (StyledDocument) d;
return NbDocument.findLineNumber(sd, sd.getLength());
}