TypeInfo listElemTypeInfo = valueTypeInfo.getListElementTypeInfo();
for (int i = 0; i < list.size(); i++) {
list.set(i, deserializeField(list.get(i), listElemTypeInfo, ext));
}
return list.toArray();
}
/**
* deserialize the struct stored in 'value' ext : the hive mapping(s) seen so far before 'value' is encountered.