pmd:RedundantFieldInitializer - Redundant-Field-Initializer

caching/src/main/java/com/iluwatar/caching/CacheStore.java

@@ -31,7 +31,7 @@ import java.util.ArrayList;
  */
 public class CacheStore {
 
-  static LruCache cache = null;
+  static LruCache cache;
 
   private CacheStore() {
   }

caching/src/main/java/com/iluwatar/caching/LruCache.java

@@ -50,8 +50,8 @@ public class LruCache {
 
   int capacity;
   HashMap<String, Node> cache = new HashMap<>();
-  Node head = null;
-  Node end = null;
+  Node head;
+  Node end;
 
   public LruCache(int capacity) {
     this.capacity = capacity;

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

@@ -44,7 +44,7 @@ public class Request {
    * Indicates if the request is handled or not. A request can only switch state from unhandled to
    * handled, there's no way to 'unhandle' a request
    */
-  private boolean handled = false;
+  private boolean handled;
 
   /**
    * Create a new request of the given type and accompanied description.

fluentinterface/src/main/java/com/iluwatar/fluentinterface/fluentiterable/lazy/DecoratingIterator.java

@@ -32,7 +32,7 @@ public abstract class DecoratingIterator<TYPE> implements Iterator<TYPE> {
 
   protected final Iterator<TYPE> fromIterator;
 
-  private TYPE next = null;
+  private TYPE next;
 
   /**
    * Creates an iterator that decorates the given iterator.

fluentinterface/src/main/java/com/iluwatar/fluentinterface/fluentiterable/lazy/LazyFluentIterable.java

@@ -111,7 +111,7 @@ public class LazyFluentIterable<TYPE> implements FluentIterable<TYPE> {
       @Override
       public Iterator<TYPE> iterator() {
         return new DecoratingIterator<TYPE>(iterable.iterator()) {
-          int currentIndex = 0;
+          int currentIndex;
 
           @Override
           public TYPE computeNext() {
@@ -156,7 +156,7 @@ public class LazyFluentIterable<TYPE> implements FluentIterable<TYPE> {
           private int stopIndex;
           private int totalElementsCount;
           private List<TYPE> list;
-          private int currentIndex = 0;
+          private int currentIndex;
 
           @Override
           public TYPE computeNext() {

model-view-presenter/src/main/java/com/iluwatar/model/view/presenter/FileLoader.java

@@ -37,7 +37,7 @@ public class FileLoader {
   /**
    * Indicates if the file is loaded or not.
    */
-  private boolean loaded = false;
+  private boolean loaded;
 
   /**
    * The name of the file that we want to load.

monostate/src/main/java/com/iluwatar/monostate/LoadBalancer.java

@@ -35,8 +35,8 @@ import java.util.List;
 
 public class LoadBalancer {
   private static List<Server> servers = new ArrayList<>();
-  private static int id = 0;
-  private static int lastServedId = 0;
+  private static int id;
+  private static int lastServedId;
 
   static {
     servers.add(new Server("localhost", 8081, ++id));

producer-consumer/src/main/java/com/iluwatar/producer/consumer/Producer.java

@@ -34,7 +34,7 @@ public class Producer {
 
   private final String name;
 
-  private int itemId = 0;
+  private int itemId;
 
   public Producer(String name, ItemQueue queue) {
     this.name = name;

reader-writer-lock/src/main/java/com/iluwatar/reader/writer/lock/ReaderWriterLock.java

@@ -40,7 +40,7 @@ public class ReaderWriterLock implements ReadWriteLock {
 
   private Object readerMutex = new Object();
 
-  private int currentReaderCount = 0;
+  private int currentReaderCount;
 
   /**
    * Global mutex is used to indicate that whether reader or writer gets the lock in the moment.

reader-writer-lock/src/main/java/com/iluwatar/reader/writer/lock/Writer.java

@@ -29,7 +29,7 @@ import java.util.concurrent.locks.Lock;
  */
 public class Writer implements Runnable {
 
-  private Lock writeLock = null;
+  private Lock writeLock;
 
   private String name;
 

singleton/src/main/java/com/iluwatar/singleton/ThreadSafeLazyLoadedIvoryTower.java

@@ -31,7 +31,7 @@ package com.iluwatar.singleton;
  */
 public class ThreadSafeLazyLoadedIvoryTower {
 
-  private static ThreadSafeLazyLoadedIvoryTower instance = null;
+  private static ThreadSafeLazyLoadedIvoryTower instance;
 
   private ThreadSafeLazyLoadedIvoryTower() {}
 

twin/src/main/java/com/iluwatar/twin/BallItem.java

@@ -30,7 +30,7 @@ package com.iluwatar.twin;
  */
 public class BallItem extends GameItem {
 
-  private boolean isSuspended = false;
+  private boolean isSuspended;
 
   private BallThread twin;