private GroupAvailability getGroupAvailability() { return (GroupAvailability) getModule().getAvailabilityPolicy();
private ExpressionGroupAvailability getGroupAvailability() { return (ExpressionGroupAvailability) getModule().getAvailabilityPolicy();
    private GroupAvailability getGroupAvailability() {        return (GroupAvailability) getModule().getAvailabilityPolicy();    }