boolean write_concurrency, boolean is_named, EInternalPID heirPID, EObject heirData) {
super(owner, type, tid, aname, access, keypos,
is_named, heirPID, heirData,
type == Native.am_set
? EPersistentInsertionOrderedMap.EMPTY
: new PersistentTreeMap(null, EObject.ERLANG_ORDERING));
this.ordered = type != Native.am_set;
}