📍Use lombok, reformat, and optimize the code (#1560)

* Use lombok, reformat, and optimize the code

* Fix merge conflicts and some sonar issues

Co-authored-by: va1m <va1m@email.com>

chain/README.md

@@ -68,8 +68,8 @@ public enum RequestType {
 Then the request handler hierarchy
 
 ```java
+@Slf4j
 public abstract class RequestHandler {
-  private static final Logger LOGGER = LoggerFactory.getLogger(RequestHandler.class);
   private final RequestHandler next;
 
   public RequestHandler(RequestHandler next) {

chain/src/main/java/com/iluwatar/chain/App.java

@@ -47,6 +47,5 @@ public class App {
     king.makeRequest(new Request(RequestType.DEFEND_CASTLE, "defend castle"));
     king.makeRequest(new Request(RequestType.TORTURE_PRISONER, "torture prisoner"));
     king.makeRequest(new Request(RequestType.COLLECT_TAX, "collect tax"));
-
   }
 }

chain/src/main/java/com/iluwatar/chain/RequestHandler.java

@@ -23,22 +23,18 @@
 
 package com.iluwatar.chain;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+import lombok.AllArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 
 /**
  * RequestHandler.
  */
+@Slf4j
+@AllArgsConstructor
 public abstract class RequestHandler {
 
-  private static final Logger LOGGER = LoggerFactory.getLogger(RequestHandler.class);
-
   private final RequestHandler next;
 
-  public RequestHandler(RequestHandler next) {
-    this.next = next;
-  }
-
   /**
    * Request handler.
    */

chain/src/main/java/com/iluwatar/chain/RequestType.java

@@ -28,6 +28,8 @@ package com.iluwatar.chain;
  */
 public enum RequestType {
 
-  DEFEND_CASTLE, TORTURE_PRISONER, COLLECT_TAX
+  DEFEND_CASTLE,
+  TORTURE_PRISONER,
+  COLLECT_TAX
 
 }

chain/src/test/java/com/iluwatar/chain/OrcKingTest.java

@@ -33,7 +33,7 @@ import org.junit.jupiter.api.Test;
  *
  * @author Jeroen Meulemeester
  */
-public class OrcKingTest {
+class OrcKingTest {
 
   /**
    * All possible requests
@@ -45,7 +45,7 @@ public class OrcKingTest {
   );
 
   @Test
-  public void testMakeRequest() {
+  void testMakeRequest() {
     final var king = new OrcKing();
 
     REQUESTS.forEach(request -> {