Merge remote-tracking branch 'refs/remotes/iluwatar/master'

event-driven-architecture/etc/eda.ucls

@@ -4,7 +4,7 @@
   <class id="1" language="java" name="com.iluwatar.eda.model.User" project="event-driven-architecture" 
     file="/event-driven-architecture/src/main/java/com/iluwatar/eda/model/User.java" binary="false" 
     corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="937" y="618"/>    
+    <position height="-1" width="-1" x="437" y="535"/>    
     <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
       sort-features="false" accessors="true" visibility="true">      
       <attributes public="true" package="true" protected="true" private="true" static="true"/>      
@@ -15,7 +15,7 @@
     project="event-driven-architecture" 
     file="/event-driven-architecture/src/main/java/com/iluwatar/eda/handler/UserUpdatedEventHandler.java" binary="false" 
     corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="936" y="90"/>    
+    <position height="-1" width="-1" x="763" y="379"/>    
     <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
       sort-features="false" accessors="true" visibility="true">      
       <attributes public="true" package="true" protected="true" private="true" static="true"/>      
@@ -26,17 +26,17 @@
     project="event-driven-architecture" 
     file="/event-driven-architecture/src/main/java/com/iluwatar/eda/handler/UserCreatedEventHandler.java" binary="false" 
     corner="BOTTOM_RIGHT">    
-    <position height="101" width="200" x="41" y="37"/>    
+    <position height="-1" width="-1" x="596" y="272"/>    
     <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
       sort-features="false" accessors="true" visibility="true">      
       <attributes public="true" package="true" protected="true" private="true" static="true"/>      
       <operations public="true" package="true" protected="true" private="true" static="true"/>    
     </display>  
   </class>  
-  <interface id="4" language="java" name="com.iluwatar.eda.framework.Message" project="event-driven-architecture" 
+  <interface id="4" language="java" name="com.iluwatar.eda.framework.Event" project="event-driven-architecture" 
-    file="/event-driven-architecture/src/main/java/com/iluwatar/eda/framework/Message.java" binary="false" 
+    file="/event-driven-architecture/src/main/java/com/iluwatar/eda/framework/Event.java" binary="false" 
     corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="298" y="189"/>    
+    <position height="-1" width="-1" x="188" y="121"/>    
     <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
       sort-features="false" accessors="true" visibility="true">      
       <attributes public="true" package="true" protected="true" private="true" static="true"/>      
@@ -46,7 +46,7 @@
   <interface id="5" language="java" name="com.iluwatar.eda.framework.Handler" project="event-driven-architecture" 
     file="/event-driven-architecture/src/main/java/com/iluwatar/eda/framework/Handler.java" binary="false" 
     corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="532" y="89"/>    
+    <position height="-1" width="-1" x="755" y="58"/>    
     <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
       sort-features="false" accessors="true" visibility="true">      
       <attributes public="true" package="true" protected="true" private="true" static="true"/>      
@@ -56,7 +56,7 @@
   <class id="6" language="java" name="com.iluwatar.eda.framework.EventDispatcher" project="event-driven-architecture" 
     file="/event-driven-architecture/src/main/java/com/iluwatar/eda/framework/EventDispatcher.java" binary="false" 
     corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="613" y="292"/>    
+    <position height="-1" width="-1" x="499" y="122"/>    
     <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
       sort-features="false" accessors="true" visibility="true">      
       <attributes public="true" package="true" protected="true" private="true" static="true"/>      
@@ -66,7 +66,7 @@
   <class id="7" language="java" name="com.iluwatar.eda.event.UserCreatedEvent" project="event-driven-architecture" 
     file="/event-driven-architecture/src/main/java/com/iluwatar/eda/event/UserCreatedEvent.java" binary="false" 
     corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="145" y="618"/>    
+    <position height="-1" width="-1" x="102" y="380"/>    
     <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
       sort-features="false" accessors="true" visibility="true">      
       <attributes public="true" package="true" protected="true" private="true" static="true"/>      
@@ -76,17 +76,17 @@
   <class id="8" language="java" name="com.iluwatar.eda.event.UserUpdatedEvent" project="event-driven-architecture" 
     file="/event-driven-architecture/src/main/java/com/iluwatar/eda/event/UserUpdatedEvent.java" binary="false" 
     corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="769" y="455"/>    
+    <position height="-1" width="-1" x="320" y="382"/>    
     <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
       sort-features="false" accessors="true" visibility="true">      
       <attributes public="true" package="true" protected="true" private="true" static="true"/>      
       <operations public="true" package="true" protected="true" private="true" static="true"/>    
     </display>  
   </class>  
-  <class id="9" language="java" name="com.iluwatar.eda.event.Event" project="event-driven-architecture" 
+  <class id="9" language="java" name="com.iluwatar.eda.event.AbstractEvent" project="event-driven-architecture" 
-    file="/event-driven-architecture/src/main/java/com/iluwatar/eda/event/Event.java" binary="false" 
+    file="/event-driven-architecture/src/main/java/com/iluwatar/eda/event/AbstractEvent.java" binary="false" 
     corner="BOTTOM_RIGHT">    
-    <position height="-1" width="-1" x="299" y="460"/>    
+    <position height="-1" width="-1" x="188" y="240"/>    
     <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
       sort-features="false" accessors="true" visibility="true">      
       <attributes public="true" package="true" protected="true" private="true" static="true"/>      
@@ -94,99 +94,87 @@
     </display>  
   </class>  
   <dependency id="10">    
-    <bendpoint x="869" y="253"/>    
+    <end type="SOURCE" refId="3"/>    
+    <end type="TARGET" refId="1"/>  
+  </dependency>  
+  <dependency id="11">    
+    <end type="SOURCE" refId="2"/>    
+    <end type="TARGET" refId="1"/>  
+  </dependency>  
+  <dependency id="12">    
     <end type="SOURCE" refId="2"/>    
     <end type="TARGET" refId="8"/>  
   </dependency>  
-  <dependency id="11">    
+  <realization id="13">    
-    <bendpoint x="140" y="196"/>    
-    <end type="SOURCE" refId="3"/>    
-    <end type="TARGET" refId="9"/>  
-  </dependency>  
-  <dependency id="12">    
-    <bendpoint x="17" y="90"/>    
-    <bendpoint x="17" y="708"/>    
-    <bendpoint x="939" y="703"/>    
-    <end type="SOURCE" refId="3"/>    
-    <end type="TARGET" refId="1"/>  
-  </dependency>  
-  <dependency id="13">    
-    <bendpoint x="935" y="318"/>    
-    <bendpoint x="936" y="417"/>    
-    <end type="SOURCE" refId="2"/>    
-    <end type="TARGET" refId="1"/>  
-  </dependency>  
-  <dependency id="14">    
-    <bendpoint x="757" y="378"/>    
-    <end type="SOURCE" refId="2"/>    
-    <end type="TARGET" refId="9"/>  
-  </dependency>  
-  <generalization id="15">    
-    <end type="SOURCE" refId="7"/>    
-    <end type="TARGET" refId="9"/>  
-  </generalization>  
-  <association id="16">    
-    <end type="SOURCE" refId="8" navigable="false">      
-      <attribute id="17" name="user"/>      
-      <multiplicity id="18" minimum="0" maximum="1"/>    
-    </end>    
-    <end type="TARGET" refId="1" navigable="true"/>    
-    <display labels="true" multiplicity="true"/>  
-  </association>  
-  <realization id="19">    
     <end type="SOURCE" refId="2"/>    
     <end type="TARGET" refId="5"/>  
   </realization>  
-  <dependency id="20">    
+  <generalization id="14">    
-    <end type="SOURCE" refId="5"/>    
+    <end type="SOURCE" refId="7"/>    
-    <end type="TARGET" refId="9"/>  
-  </dependency>  
-  <dependency id="21">    
-    <bendpoint x="301" y="114"/>    
-    <end type="SOURCE" refId="5"/>    
-    <end type="TARGET" refId="4"/>  
-  </dependency>  
-  <realization id="22">    
-    <end type="SOURCE" refId="9"/>    
-    <end type="TARGET" refId="4"/>  
-  </realization>  
-  <dependency id="23">    
-    <end type="SOURCE" refId="6"/>    
-    <end type="TARGET" refId="9"/>  
-  </dependency>  
-  <generalization id="24">    
-    <end type="SOURCE" refId="8"/>    
     <end type="TARGET" refId="9"/>  
   </generalization>  
-  <dependency id="25">    
+  <realization id="15">    
-    <bendpoint x="141" y="250"/>    
     <end type="SOURCE" refId="3"/>    
-    <end type="TARGET" refId="7"/>  
+    <end type="TARGET" refId="5"/>  
-  </dependency>  
+  </realization>  
-  <association id="26">    
+  <association id="16">    
     <end type="SOURCE" refId="6" navigable="false">      
-      <attribute id="27" name="handlers">        
+      <attribute id="17" name="handlers">        
-        <position height="19" width="56" x="449" y="175"/>      
+        <position height="19" width="56" x="672" y="144"/>      
       </attribute>      
-      <multiplicity id="28" minimum="0" maximum="2147483647">        
+      <multiplicity id="18" minimum="0" maximum="2147483647">        
-        <position height="17" width="23" x="574" y="173"/>      
+        <position height="17" width="23" x="797" y="142"/>      
       </multiplicity>    
     </end>    
     <end type="TARGET" refId="5" navigable="true"/>    
     <display labels="true" multiplicity="true"/>  
   </association>  
-  <association id="29">    
+  <realization id="19">    
-    <end type="SOURCE" refId="7" navigable="false">      
+    <end type="SOURCE" refId="9"/>    
-      <attribute id="30" name="user"/>      
+    <end type="TARGET" refId="4"/>  
-      <multiplicity id="31" minimum="0" maximum="1"/>    
+  </realization>  
+  <dependency id="20">    
+    <end type="SOURCE" refId="6"/>    
+    <end type="TARGET" refId="4"/>  
+  </dependency>  
+  <dependency id="21">    
+    <bendpoint x="187" y="57"/>    
+    <end type="SOURCE" refId="5"/>    
+    <end type="TARGET" refId="4"/>  
+  </dependency>  
+  <association id="22">    
+    <end type="SOURCE" refId="8" navigable="false">      
+      <attribute id="23" name="user">        
+        <position height="0" width="0" x="-500" y="-83"/>      
+      </attribute>      
+      <multiplicity id="24" minimum="0" maximum="1">        
+        <position height="0" width="0" x="-500" y="-83"/>      
+      </multiplicity>    
     </end>    
     <end type="TARGET" refId="1" navigable="true"/>    
     <display labels="true" multiplicity="true"/>  
   </association>  
-  <realization id="32">    
+  <generalization id="25">    
+    <end type="SOURCE" refId="8"/>    
+    <end type="TARGET" refId="9"/>  
+  </generalization>  
+  <association id="26">    
+    <end type="SOURCE" refId="7" navigable="false">      
+      <attribute id="27" name="user">        
+        <position height="0" width="0" x="-500" y="-83"/>      
+      </attribute>      
+      <multiplicity id="28" minimum="0" maximum="1">        
+        <position height="0" width="0" x="-500" y="-83"/>      
+      </multiplicity>    
+    </end>    
+    <end type="TARGET" refId="1" navigable="true"/>    
+    <display labels="true" multiplicity="true"/>  
+  </association>  
+  <dependency id="29">    
+    <bendpoint x="308" y="303"/>    
     <end type="SOURCE" refId="3"/>    
-    <end type="TARGET" refId="5"/>  
+    <end type="TARGET" refId="7"/>  
-  </realization>  
+  </dependency>  
   <classifier-display autosize="true" stereotype="true" package="true" initial-value="true" signature="true" 
     sort-features="false" accessors="true" visibility="true">    
     <attributes public="true" package="true" protected="true" private="true" static="true"/>    

event-driven-architecture/src/main/java/com/iluwatar/eda/App.java

@@ -22,9 +22,9 @@
  */
 package com.iluwatar.eda;
 
-import com.iluwatar.eda.event.Event;
 import com.iluwatar.eda.event.UserCreatedEvent;
 import com.iluwatar.eda.event.UserUpdatedEvent;
+import com.iluwatar.eda.framework.Event;
 import com.iluwatar.eda.framework.EventDispatcher;
 import com.iluwatar.eda.handler.UserCreatedEventHandler;
 import com.iluwatar.eda.handler.UserUpdatedEventHandler;
@@ -53,12 +53,12 @@ public class App {
   public static void main(String[] args) {
 
     EventDispatcher dispatcher = new EventDispatcher();
-    dispatcher.registerChannel(UserCreatedEvent.class, new UserCreatedEventHandler());
+    dispatcher.registerHandler(UserCreatedEvent.class, new UserCreatedEventHandler());
-    dispatcher.registerChannel(UserUpdatedEvent.class, new UserUpdatedEventHandler());
+    dispatcher.registerHandler(UserUpdatedEvent.class, new UserUpdatedEventHandler());
 
     User user = new User("iluwatar");
-    dispatcher.onEvent(new UserCreatedEvent(user));
+    dispatcher.dispatch(new UserCreatedEvent(user));
-    dispatcher.onEvent(new UserUpdatedEvent(user));
+    dispatcher.dispatch(new UserUpdatedEvent(user));
   }
 
 }

event-driven-architecture/src/main/java/com/iluwatar/eda/event/AbstractEvent.java

@@ -23,10 +23,10 @@
 package com.iluwatar.eda.event;
 
 import com.iluwatar.eda.framework.EventDispatcher;
-import com.iluwatar.eda.framework.Message;
+import com.iluwatar.eda.framework.Event;
 
 /**
- * The {@link Event} class serves as a base class for defining custom events happening with your
+ * The {@link AbstractEvent} class serves as a base class for defining custom events happening with your
  * system. In this example we have two types of events defined.
  * <ul>
  *   <li>{@link UserCreatedEvent} - used when a user is created</li>
@@ -34,16 +34,16 @@ import com.iluwatar.eda.framework.Message;
  * </ul>
  * Events can be distinguished using the {@link #getType() getType} method.
  */
-public class Event implements Message {
+public abstract class AbstractEvent implements Event {
 
   /**
    * Returns the event type as a {@link Class} object
    * In this example, this method is used by the {@link EventDispatcher} to
    * dispatch events depending on their type.
    *
-   * @return the Event type as a {@link Class}.
+   * @return the AbstractEvent type as a {@link Class}.
    */
-  public Class<? extends Message> getType() {
+  public Class<? extends Event> getType() {
     return getClass();
   }
 }

event-driven-architecture/src/main/java/com/iluwatar/eda/event/UserCreatedEvent.java

@@ -29,7 +29,7 @@ import com.iluwatar.eda.model.User;
  * This class can be extended to contain details about the user has been created. In this example,
  * the entire {@link User} object is passed on as data with the event.
  */
-public class UserCreatedEvent extends Event {
+public class UserCreatedEvent extends AbstractEvent {
 
   private User user;
 

event-driven-architecture/src/main/java/com/iluwatar/eda/event/UserUpdatedEvent.java

@@ -29,7 +29,7 @@ import com.iluwatar.eda.model.User;
  * This class can be extended to contain details about the user has been updated. In this example,
  * the entire {@link User} object is passed on as data with the event.
  */
-public class UserUpdatedEvent extends Event {
+public class UserUpdatedEvent extends AbstractEvent {
 
   private User user;
 

event-driven-architecture/src/main/java/com/iluwatar/eda/framework/Event.java

@@ -23,15 +23,15 @@
 package com.iluwatar.eda.framework;
 
 /**
- * A {@link Message} is an object with a specific type that is associated
+ * A {@link Event} is an object with a specific type that is associated
  * to a specific {@link Handler}.
  */
-public interface Message {
+public interface Event {
 
   /**
    * Returns the message type as a {@link Class} object. In this example the message type is
    * used to handle events by their type.
    * @return the message type as a {@link Class}.
    */
-  Class<? extends Message> getType();
+  Class<? extends Event> getType();
 }

event-driven-architecture/src/main/java/com/iluwatar/eda/framework/EventDispatcher.java

@@ -22,19 +22,16 @@
  */
 package com.iluwatar.eda.framework;
 
-import com.iluwatar.eda.event.Event;
-
 import java.util.HashMap;
 import java.util.Map;
 
 /**
  * Handles the routing of {@link Event} messages to associated handlers.
  * A {@link HashMap} is used to store the association between events and their respective handlers.
- *
  */
 public class EventDispatcher {
 
-  private Map<Class<? extends Event>, Handler<?>> handlers;
+  private Map<Class<? extends Event>, Handler<? extends Event>> handlers;
 
   public EventDispatcher() {
     handlers = new HashMap<>();
@@ -46,8 +43,8 @@ public class EventDispatcher {
    * @param eventType The {@link Event} to be registered
    * @param handler   The {@link Handler} that will be handling the {@link Event}
    */
-  public void registerChannel(Class<? extends Event> eventType,
+  public <E extends Event> void registerHandler(Class<E> eventType,
-                              Handler<?> handler) {
+                                                Handler<E> handler) {
     handlers.put(eventType, handler);
   }
 
@@ -56,8 +53,12 @@ public class EventDispatcher {
    *
    * @param event The {@link Event} to be dispatched
    */
-  public void onEvent(Event event) {
+  @SuppressWarnings("unchecked")
-    handlers.get(event.getClass()).onEvent(event);
+  public <E extends Event> void dispatch(E event) {
+    Handler<E> handler = (Handler<E>) handlers.get(event.getClass());
+    if (handler != null) {
+      handler.onEvent(event);
+    }
   }
 
 }

event-driven-architecture/src/main/java/com/iluwatar/eda/framework/Handler.java

@@ -22,13 +22,11 @@
  */
 package com.iluwatar.eda.framework;
 
-import com.iluwatar.eda.event.Event;
-
 /**
  * This interface can be implemented to handle different types of messages.
  * Every handler is responsible for a single of type message
  */
-public interface Handler<E extends Message> {
+public interface Handler<E extends Event> {
 
   /**
    * The onEvent method should implement and handle behavior related to the event.
@@ -36,5 +34,5 @@ public interface Handler<E extends Message> {
    * a queue to be consumed by other sub systems.
    * @param event the {@link Event} object to be handled.
    */
-  void onEvent(Event event);
+  void onEvent(E event);
 }

event-driven-architecture/src/main/java/com/iluwatar/eda/handler/UserCreatedEventHandler.java

@@ -22,7 +22,6 @@
  */
 package com.iluwatar.eda.handler;
 
-import com.iluwatar.eda.event.Event;
 import com.iluwatar.eda.event.UserCreatedEvent;
 import com.iluwatar.eda.framework.Handler;
 
@@ -32,9 +31,10 @@ import com.iluwatar.eda.framework.Handler;
 public class UserCreatedEventHandler implements Handler<UserCreatedEvent> {
 
   @Override
-  public void onEvent(Event message) {
+  public void onEvent(UserCreatedEvent event) {
 
-    UserCreatedEvent userCreatedEvent = (UserCreatedEvent) message;
+    System.out.println(String.format(
-    System.out.printf("User with %s has been Created!", userCreatedEvent.getUser().getUsername());
+            "User '%s' has been Created!", event.getUser().getUsername()));
   }
+
 }

event-driven-architecture/src/main/java/com/iluwatar/eda/handler/UserUpdatedEventHandler.java

@@ -22,7 +22,6 @@
  */
 package com.iluwatar.eda.handler;
 
-import com.iluwatar.eda.event.Event;
 import com.iluwatar.eda.event.UserUpdatedEvent;
 import com.iluwatar.eda.framework.Handler;
 
@@ -32,9 +31,9 @@ import com.iluwatar.eda.framework.Handler;
 public class UserUpdatedEventHandler implements Handler<UserUpdatedEvent> {
 
   @Override
-  public void onEvent(Event message) {
+  public void onEvent(UserUpdatedEvent event) {
 
-    UserUpdatedEvent userUpdatedEvent = (UserUpdatedEvent) message;
+    System.out.println(String.format(
-    System.out.printf("User with %s has been Updated!", userUpdatedEvent.getUser().getUsername());
+            "User '%s' has been Updated!", event.getUser().getUsername()));
   }
 }

event-driven-architecture/src/test/java/com/iluwatar/eda/event/UserCreatedEventTest.java

@@ -29,13 +29,13 @@ import org.junit.Test;
 import static org.junit.Assert.assertEquals;
 
 /**
- * {@link UserCreatedEventTest} tests and verifies {@link Event} behaviour.
+ * {@link UserCreatedEventTest} tests and verifies {@link AbstractEvent} behaviour.
  */
 public class UserCreatedEventTest {
 
   /**
-   * This unit test should correctly return the {@link Event} class type when calling the
+   * This unit test should correctly return the {@link AbstractEvent} class type when calling the
-   * {@link Event#getType() getType} method.
+   * {@link AbstractEvent#getType() getType} method.
    */
   @Test
   public void testGetEventType() {

event-driven-architecture/src/test/java/com/iluwatar/eda/framework/EventDispatcherTest.java

@@ -22,7 +22,6 @@
  */
 package com.iluwatar.eda.framework;
 
-import com.iluwatar.eda.framework.EventDispatcher;
 import com.iluwatar.eda.event.UserCreatedEvent;
 import com.iluwatar.eda.event.UserUpdatedEvent;
 import com.iluwatar.eda.handler.UserCreatedEventHandler;
@@ -49,8 +48,8 @@ public class EventDispatcherTest {
     EventDispatcher dispatcher = spy(new EventDispatcher());
     UserCreatedEventHandler userCreatedEventHandler = spy(new UserCreatedEventHandler());
     UserUpdatedEventHandler userUpdatedEventHandler = spy(new UserUpdatedEventHandler());
-    dispatcher.registerChannel(UserCreatedEvent.class, userCreatedEventHandler);
+    dispatcher.registerHandler(UserCreatedEvent.class, userCreatedEventHandler);
-    dispatcher.registerChannel(UserUpdatedEvent.class, userUpdatedEventHandler);
+    dispatcher.registerHandler(UserUpdatedEvent.class, userUpdatedEventHandler);
 
     User user = new User("iluwatar");
 
@@ -58,15 +57,14 @@ public class EventDispatcherTest {
     UserUpdatedEvent userUpdatedEvent = new UserUpdatedEvent(user);
 
     //fire a userCreatedEvent and verify that userCreatedEventHandler has been invoked.
-    dispatcher.onEvent(userCreatedEvent);
+    dispatcher.dispatch(userCreatedEvent);
     verify(userCreatedEventHandler).onEvent(userCreatedEvent);
-    verify(dispatcher).onEvent(userCreatedEvent);
+    verify(dispatcher).dispatch(userCreatedEvent);
 
     //fire a userCreatedEvent and verify that userUpdatedEventHandler has been invoked.
-    dispatcher.onEvent(userUpdatedEvent);
+    dispatcher.dispatch(userUpdatedEvent);
     verify(userUpdatedEventHandler).onEvent(userUpdatedEvent);
-    verify(dispatcher).onEvent(userUpdatedEvent);
+    verify(dispatcher).dispatch(userUpdatedEvent);
   }
 
-
 }

facade/src/main/java/com/iluwatar/facade/DwarvenGoldmineFacade.java

@@ -60,7 +60,7 @@ public class DwarvenGoldmineFacade {
     makeActions(workers, DwarvenMineWorker.Action.GO_HOME, DwarvenMineWorker.Action.GO_TO_SLEEP);
   }
 
-  private void makeActions(Collection<DwarvenMineWorker> workers,
+  private static void makeActions(Collection<DwarvenMineWorker> workers,
       DwarvenMineWorker.Action... actions) {
     for (DwarvenMineWorker worker : workers) {
       worker.action(actions);

factory-kit/src/main/java/com/iluwatar/factorykit/App.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.factorykit;
 
 /**

factory-kit/src/main/java/com/iluwatar/factorykit/Axe.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.factorykit;
 
 public class Axe implements Weapon {

factory-kit/src/main/java/com/iluwatar/factorykit/Bow.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.factorykit;
 
 public class Bow implements Weapon {

factory-kit/src/main/java/com/iluwatar/factorykit/Builder.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.factorykit;
 
 import java.util.function.Supplier;

factory-kit/src/main/java/com/iluwatar/factorykit/Spear.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.factorykit;
 
 public class Spear implements Weapon {

factory-kit/src/main/java/com/iluwatar/factorykit/Sword.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.factorykit;
 
 public class Sword implements Weapon {

factory-kit/src/main/java/com/iluwatar/factorykit/Weapon.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.factorykit;
 
 /**

factory-kit/src/main/java/com/iluwatar/factorykit/WeaponFactory.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.factorykit;
 
 import java.util.HashMap;

factory-kit/src/main/java/com/iluwatar/factorykit/WeaponType.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.factorykit;
 
 /**

factory-kit/src/test/java/com/iluwatar/factorykit/app/AppTest.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.factorykit.app;
 
 import com.iluwatar.factorykit.App;

factory-kit/src/test/java/com/iluwatar/factorykit/factorykit/FactoryKitTest.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.factorykit.factorykit;
 
 import com.iluwatar.factorykit.*;

front-controller/src/main/java/com/iluwatar/front/controller/FrontController.java

@@ -44,7 +44,7 @@ public class FrontController {
     }
   }
 
-  private Class getCommandClass(String request) {
+  private static Class getCommandClass(String request) {
     Class result;
     try {
       result = Class.forName("com.iluwatar.front.controller." + request + "Command");

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

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.monad;
 
 import java.util.Objects;

monad/src/main/java/com/iluwatar/monad/Sex.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.monad;
 
 public enum Sex {

monad/src/main/java/com/iluwatar/monad/User.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.monad;
 
 public class User {

monad/src/main/java/com/iluwatar/monad/Validator.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.monad;
 
 import java.util.ArrayList;

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

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.monad;
 
 import org.junit.Test;

monad/src/test/java/com/iluwatar/monad/MonadTest.java

@@ -1,3 +1,25 @@
+/**
+ * The MIT License
+ * Copyright (c) 2014 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
 package com.iluwatar.monad;
 
 

reactor/src/main/java/com/iluwatar/reactor/app/LoggingHandler.java

@@ -58,7 +58,7 @@ public class LoggingHandler implements ChannelHandler {
     }
   }
 
-  private void sendReply(AbstractNioChannel channel, DatagramPacket incomingPacket, SelectionKey key) {
+  private static void sendReply(AbstractNioChannel channel, DatagramPacket incomingPacket, SelectionKey key) {
     /*
      * Create a reply acknowledgement datagram packet setting the receiver to the sender of incoming
      * message.
@@ -69,12 +69,12 @@ public class LoggingHandler implements ChannelHandler {
     channel.write(replyPacket, key);
   }
 
-  private void sendReply(AbstractNioChannel channel, SelectionKey key) {
+  private static void sendReply(AbstractNioChannel channel, SelectionKey key) {
     ByteBuffer buffer = ByteBuffer.wrap(ACK);
     channel.write(buffer, key);
   }
 
-  private void doLogging(ByteBuffer data) {
+  private static void doLogging(ByteBuffer data) {
     // assuming UTF-8 :(
     System.out.println(new String(data.array(), 0, data.limit()));
   }

reactor/src/main/java/com/iluwatar/reactor/framework/NioReactor.java

@@ -186,7 +186,7 @@ public class NioReactor {
     }
   }
 
-  private void onChannelWritable(SelectionKey key) throws IOException {
+  private static void onChannelWritable(SelectionKey key) throws IOException {
     AbstractNioChannel channel = (AbstractNioChannel) key.attachment();
     channel.flush(key);
   }

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

@@ -89,7 +89,7 @@ public class ReaderWriterLock implements ReadWriteLock {
     return globalMutex.isEmpty();
   }
 
-  private void waitUninterruptibly(Object o) {
+  private static void waitUninterruptibly(Object o) {
     try {
       o.wait();
     } catch (InterruptedException e) {

repository/src/main/java/com/iluwatar/repository/AppConfig.java

@@ -76,7 +76,7 @@ public class AppConfig {
   /**
    * Properties for Jpa
    */
-  private Properties jpaProperties() {
+  private static Properties jpaProperties() {
     Properties properties = new Properties();
     properties.setProperty("hibernate.dialect", "org.hibernate.dialect.H2Dialect");
     properties.setProperty("hibernate.hbm2ddl.auto", "create-drop");