How is your setter implemented? In the linked discussion the problem is pretty much that the setter is implemented like
public void setChildList(List childs) {
//dereferences the original (hibernate) list which could cause the exception on commit.
this.childs = childs;
}
instead of
public void setChildList(List childs) {
//keep the (hibernate) list so hibernate can track its changes
this.childs.clear();
this.child.addAll(childs);
}
--- J.
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