diff --git a/core-java/src/test/java/com/baeldung/java/map/MapTest.java b/core-java/src/test/java/com/baeldung/java/map/MapTest.java
index a348869a5c..4642c4cc4d 100644
--- a/core-java/src/test/java/com/baeldung/java/map/MapTest.java
+++ b/core-java/src/test/java/com/baeldung/java/map/MapTest.java
@@ -311,13 +311,7 @@ public class MapTest {
 
     @Test
     public void givenTreeMap_whenOrdersEntriesByComparator_thenCorrect() {
-        TreeMap<Integer, String> map = new TreeMap<>(new Comparator<Integer>() {
-
-            @Override
-            public int compare(Integer o1, Integer o2) {
-                return o2 - o1;
-            }
-        });
+        TreeMap<Integer, String> map = new TreeMap<>(Comparator.reverseOrder());
         map.put(3, "val");
         map.put(2, "val");
         map.put(1, "val");
diff --git a/javaslang/pom.xml b/javaslang/pom.xml
index 57a3c7596e..e111132aec 100644
--- a/javaslang/pom.xml
+++ b/javaslang/pom.xml
@@ -37,4 +37,4 @@
             </plugin>
         </plugins>
     </build>
-</project>
+</project>
\ No newline at end of file