import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
 
class Test {
    public static void main(String[] args) {
        List<String> strings = new ArrayList<>();
        List<Item> items = strings.stream().map(tqsScore -> new Item(new HashMap())).collect(Collectors.toList());
    }
}
 
class Item {
    public Map<String, String> metadata;
 
    Item(Map<String, String> metadata) {
        this.metadata = metadata;
    }
}

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