docs: improve lockable object

lockable-object/src/main/java/com/iluwatar/lockableobject/App.java

@@ -42,8 +42,8 @@ import lombok.extern.slf4j.Slf4j;
  * the request.
  *
  * <p>In this example, we create a new Lockable object with the SwordOfAragorn implementation of it.
- * Afterwards we create 6 Creatures with the Elf, Orc and Human implementations and assign them each
- * to a Fiend object and the Sword is the target object. Because there is only one Sword and it uses
+ * Afterward we create 6 Creatures with the Elf, Orc and Human implementations and assign them each
+ * to a Fiend object and the Sword is the target object. Because there is only one Sword, and it uses
  * the Lockable Object pattern, only one creature can hold the sword at a given time. When the sword
  * is locked, any other alive Fiends will try to lock, which will result in a race to lock the
  * sword.

lockable-object/src/main/java/com/iluwatar/lockableobject/LockingException.java

@@ -24,11 +24,14 @@
  */
 package com.iluwatar.lockableobject;
 
+import java.io.Serial;
+
 /**
  * An exception regarding the locking process of a Lockable object.
  */
 public class LockingException extends RuntimeException {
 
+  @Serial
   private static final long serialVersionUID = 8556381044865867037L;
 
   public LockingException(String message) {

lockable-object/src/main/java/com/iluwatar/lockableobject/domain/Creature.java

@@ -66,7 +66,7 @@ public abstract class Creature {
     return false;
   }
 
-  /** Terminates the Creature and unlocks all of the Lockable that it posses. */
+  /** Terminates the Creature and unlocks all the Lockable that it possesses. */
   public synchronized void kill() {
     LOGGER.info("{} {} has been slayed!", type, name);
     for (Lockable lockable : instruments) {

lockable-object/src/main/java/com/iluwatar/lockableobject/domain/CreatureStats.java

@@ -24,6 +24,8 @@
  */
 package com.iluwatar.lockableobject.domain;
 
+import lombok.Getter;
+
 /** Attribute constants of each Creature implementation. */
 public enum CreatureStats {
   ELF_HEALTH(90),
@@ -33,13 +35,10 @@ public enum CreatureStats {
   HUMAN_HEALTH(60),
   HUMAN_DAMAGE(60);
 
-  int value;
+  @Getter
+  final int value;
 
-  private CreatureStats(int value) {
+  CreatureStats(int value) {
     this.value = value;
   }
-
-  public int getValue() {
-    return this.value;
-  }
 }

lockable-object/src/main/java/com/iluwatar/lockableobject/domain/Feind.java

@@ -30,7 +30,7 @@ import lombok.NonNull;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-/** A Feind is a creature that all it wants is to posses a Lockable object. */
+/** A Feind is a creature that wants to possess a Lockable object. */
 public class Feind implements Runnable {
 
   private final Creature creature;
@@ -53,12 +53,7 @@ public class Feind implements Runnable {
   @Override
   public void run() {
     if (!creature.acquire(target)) {
-      try {
-        fightForTheSword(creature, target.getLocker(), target);
-      } catch (InterruptedException e) {
-        LOGGER.error(e.getMessage());
-        Thread.currentThread().interrupt();
-      }
+      fightForTheSword(creature, target.getLocker(), target);
     } else {
       LOGGER.info("{} has acquired the sword!", target.getLocker().getName());
     }
@@ -69,11 +64,9 @@ public class Feind implements Runnable {
    *
    * @param reacher as the source creature.
    * @param holder as the foe.
-   * @param sword as the Lockable to posses.
-   * @throws InterruptedException in case of interruption.
+   * @param sword as the Lockable to possess.
    */
-  private void fightForTheSword(Creature reacher, @NonNull Creature holder, Lockable sword)
-      throws InterruptedException {
+  private void fightForTheSword(Creature reacher, @NonNull Creature holder, Lockable sword) {
     LOGGER.info("A duel between {} and {} has been started!", reacher.getName(), holder.getName());
     boolean randBool;
     while (this.target.isLocked() && reacher.isAlive() && holder.isAlive()) {

lockable-object/src/main/java/com/iluwatar/lockableobject/domain/Human.java

@@ -28,7 +28,7 @@ package com.iluwatar.lockableobject.domain;
 public class Human extends Creature {
 
   /**
-   * A constructor that initializes the attributes of an human.
+   * A constructor that initializes the attributes of a human.
    *
    * @param name as the name of the creature.
    */

lockable-object/src/main/java/com/iluwatar/lockableobject/domain/Orc.java

@@ -24,7 +24,7 @@
  */
 package com.iluwatar.lockableobject.domain;
 
-/** A Orc implementation of a Creature. */
+/** An Orc implementation of a Creature. */
 public class Orc extends Creature {
   /**
    * A constructor that initializes the attributes of an orc.