_propOrderIterator = propOrderIterator;
if(requiredSet == null){
_processedSet = null;
}
else {
<BUG>_processedSet = FastSet.newSet(Order.LEXICAL).linked().downcast();
</BUG>
}
}
}

_propOrderIterator = propOrderIterator;
if(requiredSet == null){
_processedSet = null;
