// superuser removes the node with childNPath in order to provoke
// events being generated
superuser.getItem(childNPath).remove();
superuser.save();
obsMgr.removeEventListener(listener);
// since the testUser does not have read-permission on the removed
// node, no corresponding event must be generated.
Event[] evts = listener.getEvents(DEFAULT_WAIT_TIMEOUT);
for (int i = 0; i < evts.length; i++) {
if (evts[i].getType() == Event.NODE_REMOVED &&