Fixed checkstyle code quality issues

null-object/src/test/java/com/iluwatar/nullobject/TreeTest.java

@@ -32,13 +32,13 @@ public class TreeTest extends StdOutTest {
   private static final Node TREE_ROOT;
 
   static {
-    final NodeImpl level1_b = new NodeImpl("level1_b", NullNode.getInstance(), NullNode.getInstance());
+    final NodeImpl level1B = new NodeImpl("level1_b", NullNode.getInstance(), NullNode.getInstance());
-    final NodeImpl level2_b = new NodeImpl("level2_b", NullNode.getInstance(), NullNode.getInstance());
+    final NodeImpl level2B = new NodeImpl("level2_b", NullNode.getInstance(), NullNode.getInstance());
-    final NodeImpl level3_a = new NodeImpl("level3_a", NullNode.getInstance(), NullNode.getInstance());
+    final NodeImpl level3A = new NodeImpl("level3_a", NullNode.getInstance(), NullNode.getInstance());
-    final NodeImpl level3_b = new NodeImpl("level3_b", NullNode.getInstance(), NullNode.getInstance());
+    final NodeImpl level3B = new NodeImpl("level3_b", NullNode.getInstance(), NullNode.getInstance());
-    final NodeImpl level2_a = new NodeImpl("level2_a", level3_a, level3_b);
+    final NodeImpl level2A = new NodeImpl("level2_a", level3A, level3B);
-    final NodeImpl level1_a = new NodeImpl("level1_a", level2_a, level2_b);
+    final NodeImpl level1A = new NodeImpl("level1_a", level2A, level2B);
-    TREE_ROOT = new NodeImpl("root", level1_a, level1_b);
+    TREE_ROOT = new NodeImpl("root", level1A, level1B);
   }
 
   /**

poison-pill/src/test/java/com/iluwatar/poison/pill/ConsumerTest.java

@@ -17,10 +17,10 @@ public class ConsumerTest extends StdOutTest {
   @Test
   public void testConsume() throws Exception {
     final Message[] messages = new Message[]{
-            createMessage("you", "Hello!"),
+        createMessage("you", "Hello!"),
-            createMessage("me", "Hi!"),
+        createMessage("me", "Hi!"),
-            Message.POISON_PILL,
+        Message.POISON_PILL,
-            createMessage("late_for_the_party", "Hello? Anyone here?"),
+        createMessage("late_for_the_party", "Hello? Anyone here?"),
     };
 
     final MessageQueue queue = new SimpleMessageQueue(messages.length);

private-class-data/src/test/java/com/iluwatar/privateclassdata/StewTest.java

@@ -18,8 +18,8 @@ public class StewTest extends StdOutTest {
   @Test
   public void testMix() {
     final ImmutableStew stew = new ImmutableStew(1, 2, 3, 4);
-    final String expectedMessage = "Mixing the immutable stew we find: 1 potatoes, " +
+    final String expectedMessage = "Mixing the immutable stew we find: 1 potatoes, "
-            "2 carrots, 3 meat and 4 peppers";
+        + "2 carrots, 3 meat and 4 peppers";
 
     final InOrder inOrder = inOrder(getStdOutMock());
     for (int i = 0; i < 20; i++) {

producer-consumer/src/test/java/com/iluwatar/producer/consumer/ConsumerTest.java

@@ -30,7 +30,7 @@ public class ConsumerTest extends StdOutTest {
     for (int id = 0; id < ITEM_COUNT; id++) {
       consumer.consume();
       inOrder.verify(getStdOutMock())
-              .println("Consumer [consumer] consume item [" + id + "] produced by [producer]");
+          .println("Consumer [consumer] consume item [" + id + "] produced by [producer]");
     }
 
     inOrder.verifyNoMoreInteractions();

proxy/src/test/java/com/iluwatar/proxy/WizardTowerProxyTest.java

@@ -15,10 +15,10 @@ public class WizardTowerProxyTest extends StdOutTest {
   @Test
   public void testEnter() throws Exception {
     final Wizard[] wizards = new Wizard[]{
-            new Wizard("Gandalf"),
+        new Wizard("Gandalf"),
-            new Wizard("Dumbledore"),
+        new Wizard("Dumbledore"),
-            new Wizard("Oz"),
+        new Wizard("Oz"),
-            new Wizard("Merlin")
+        new Wizard("Merlin")
     };
 
     final WizardTowerProxy tower = new WizardTowerProxy();

proxy/src/test/java/com/iluwatar/proxy/WizardTowerTest.java

@@ -15,10 +15,10 @@ public class WizardTowerTest extends StdOutTest {
   @Test
   public void testEnter() throws Exception {
     final Wizard[] wizards = new Wizard[]{
-            new Wizard("Gandalf"),
+        new Wizard("Gandalf"),
-            new Wizard("Dumbledore"),
+        new Wizard("Dumbledore"),
-            new Wizard("Oz"),
+        new Wizard("Oz"),
-            new Wizard("Merlin")
+        new Wizard("Merlin")
     };
 
     final WizardTower tower = new WizardTower();

service-locator/src/test/java/com/iluwatar/servicelocator/ServiceLocatorTest.java

@@ -2,7 +2,11 @@ package com.iluwatar.servicelocator;
 
 import org.junit.Test;
 
-import static org.junit.Assert.*;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertTrue;
 
 /**
  * Date: 12/29/15 - 19:07 PM
@@ -26,7 +30,7 @@ public class ServiceLocatorTest {
   @Test
   public void testServiceCache() {
     final String[] serviceNames = new String[]{
-            "jndi/serviceA", "jndi/serviceB"
+        "jndi/serviceA", "jndi/serviceB"
     };
 
     for (final String serviceName : serviceNames) {

state/src/test/java/com/iluwatar/state/AppTest.java

@@ -1,17 +1,15 @@
 package com.iluwatar.state;
 
-import org.junit.Ignore;
 import org.junit.Test;
 
 /**
- * 
+ *
  * Application test
  *
  */
 public class AppTest {
 
   @Test
-  @Ignore
   public void test() {
     String[] args = {};
     App.main(args);