public void save() throws IOException {
// persistence is a part of the owner
// due to initialization timing issue, it can be null when this method is called
if (owner != null) {
owner.save();
}
}
public void save() throws IOException {
// persistence is a part of the owner
// due to initialization timing issue, it can be null when this method is called
if (owner != null) {
owner.save();
}
}