Major Description
As result of some further optimalization in the core of the Jetspeed engine, a PortletWindow is not always automatically created anymore for page fragments (this used to be the case with Jetspeed 2.2.0).
Specifically, for Portlets which have had no interaction yet and therefore no PortletWindowRequestNavigationalState no PortletWindow will be instantiated.
Therefore the PortletEventCoordinationService no longer can assume a PortletWindow already will be available for potential PortletEvent page fragments (without which a PortletEvent cannot be delivered).