Better Map Key/Value collection with Java 8

BetterMapKeyValueCollectionWithJava8.java

@Test
public void testBlah() {
    Map<Integer, String> map = new HashMap<>();
    map.put(10, "apple");
    map.put(20, "orange");
    map.put(30, "banana");
    map.put(40, "watermelon");
    map.put(50, "dragonfruit");

    // Using Java 8 Stream
    Tuple2<List<Integer>, List<String>> result = 
    map.entrySet()
        .stream()
        .collect(Tuple.collectors(
            Collectors.mapping(Entry::getKey, Collectors.toList()),
            Collectors.mapping(Entry::getValue, Collectors.toList())
        ));
    
    // Using jOOL Seq
    Tuple2<List<Integer>, List<String>> result = 
    Seq.seq(map)
       .collect(
            Collectors.mapping(Tuple2::v1, Collectors.toList()),
            Collectors.mapping(Tuple2::v2, Collectors.toList())
       );
    
    System.out.println(result);
}