Upgrade Java version to 21 on iteration 7

pom.xml

@@ -66,6 +66,10 @@
             <groupId>jakarta.validation</groupId>
             <artifactId>jakarta.validation-api</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.apache.httpcomponents.client5</groupId>
+            <artifactId>httpclient5</artifactId>
+        </dependency>
 
     </dependencies>
 

src/main/java/com/amazonaws/samples/appconfig/utils/Math1.java

@@ -1,27 +1,28 @@
 //example from https://docs.openrewrite.org/running-recipes/popular-recipe-guides/migrate-to-java-17
 package com.amazonaws.samples.appconfig.utils;
 import java.math.BigDecimal;
+import java.math.RoundingMode;
 
 public class Math1 {
-    Boolean bool = new Boolean(true);
-    Byte b = new Byte("1");
-    Character c = new Character('c');
-    Double d = new Double(1.0);
-    Float f = new Float(1.1f);
-    Long l = new Long(1);
-    Short sh = new Short("12");
+    Boolean bool = Boolean.valueOf(true);
+    Byte b = Byte.valueOf("1");
+    Character c = Character.valueOf('c');
+    Double d = Double.valueOf(1.0);
+    Float f = Float.valueOf(1.1f);
+    Long l = Long.valueOf(1);
+    Short sh = Short.valueOf("12");
     short s3 = 3;
-    Short sh3 = new Short(s3);
-    Integer i = new Integer(1);
+    Short sh3 = Short.valueOf(s3);
+    Integer i = Integer.valueOf(1);
 
     public void divide() {
         BigDecimal bd = BigDecimal.valueOf(10);
         BigDecimal bd2 = BigDecimal.valueOf(2);
-        bd.divide(bd2, BigDecimal.ROUND_DOWN);
-        bd.divide(bd2, 1);
-        bd.divide(bd2, 1, BigDecimal.ROUND_CEILING);
-        bd.divide(bd2, 1, 1);
-        bd.setScale(2, 1);
+        bd.divide(bd2, RoundingMode.DOWN);
+        bd.divide(bd2, RoundingMode.DOWN);
+        bd.divide(bd2, 1, RoundingMode.CEILING);
+        bd.divide(bd2, 1, RoundingMode.DOWN);
+        bd.setScale(2, RoundingMode.DOWN);
     }
 
    }