[eclipse-ee4j#620]Stream.toList() only available from Java 16 on, rep…

…laced it in CollectionsTest, use collect(Collectors.toList()).

Signed-off-by: Anton Pinsky <[email protected]>

src/test/java/org/eclipse/yasson/defaultmapping/collections/CollectionsTest.java

@@ -114,9 +114,9 @@ public void listOfMapsOfListsOfMaps() {
             IntStream.range(0, 3).boxed().collect(Collectors.toMap(String::valueOf, j ->
                 IntStream.range(0, 3).mapToObj(k ->
                     new HashMap<>(Map.of("first", 1, "second", 2, "third", 3))
-                ).toList()
+                ).collect(Collectors.toList())
             ))
-        ).toList();
+        ).collect(Collectors.toList());
 
         String expected = "[{\"0\":[{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2}],\"1\":[{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2}],\"2\":[{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2}]},{\"0\":[{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2}],\"1\":[{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2}],\"2\":[{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2}]},{\"0\":[{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2}],\"1\":[{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2}],\"2\":[{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2},{\"third\":3,\"first\":1,\"second\":2}]}]";
         assertEquals(expected, nullableJsonb.toJson(listOfMapsOfListsOfMaps));