// "Replace IntStream.range().mapToObj() with list.get(...).stream()" "true" import java.util.ArrayList; import java.util.List; import java.util.stream.IntStream; public class Test extends ArrayList<String> { public void test(List<List<String>> list) { String[] arr2 = IntStream.range(0, list.get(0).size()) // comment 0 .m<caret>apToObj(index -> list./*comment1*/get(0).get(index) + /*comment2*/"!!!" + // comment3 list.get(0).get(/*comment4*/index)) .toArray(String[]::new); } }