addEvent(new RemoveEvent(this, target, rev, source, event));
addEvent(new RemoveEvent(this, target, rev, source, event), pending);
    private void reverseUpdateOld(PropertyEvent event, Object target) {        Object source = event.getObject();        Role role = (Role) event.getProperty();        Role rev = role.getReverse();        if (rev.isCollection()) {            addEvent(new RemoveEvent(this, target, rev, source, event));        } else {            addEvent(new SetEvent(this, target, rev, null, event));        }    }