Merge branch 'master' into message-channel

README.md

@@ -6,26 +6,23 @@
 
 [![Join the chat at https://gitter.im/iluwatar/java-design-patterns](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/iluwatar/java-design-patterns?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
-![Build status](https://travis-ci.org/iluwatar/java-design-patterns.svg?branch=master) [![Coverage Status](https://coveralls.io/repos/iluwatar/java-design-patterns/badge.svg?branch=master)](https://coveralls.io/r/iluwatar/java-design-patterns?branch=master) <a href="https://scan.coverity.com/projects/5634">
+[![Build status](https://travis-ci.org/iluwatar/java-design-patterns.svg?branch=master)](https://travis-ci.org/iluwatar/java-design-patterns) [![Coverage Status](https://coveralls.io/repos/iluwatar/java-design-patterns/badge.svg?branch=master)](https://coveralls.io/r/iluwatar/java-design-patterns?branch=master) <a href="https://scan.coverity.com/projects/5634">
   <img alt="Coverity Scan Build Status"
        src="https://scan.coverity.com/projects/5634/badge.svg"/>
 </a>
 
 
-#### Browse and view all of the patterns on our Website: [iluwatar.github.io/java-design-patterns/](https://iluwatar.github.io/java-design-patterns/)
-
 <a name="top"/>
 
 # <a name="toc">Table of Contents</a>
  - <a href="#introduction">Introduction</a>
+ - <a href="#contribute">How to contribute</a>
  - <a href="#faq">Frequently Asked Questions</a>
- - <a href="#how-to-contribute">How to contribute</a>
- - <a href="#versioning">Versioning</a>
  - <a href="#credits">Credits</a>
  - <a href="#license">License</a>
 
 
-## <a name="introduction">Introduction</a>
+# <a name="introduction">Introduction</a> [&#8593;](#top)
 
 Design patterns are formalized best practices that the programmer can use to
 solve common problems when designing an application or system.
@@ -38,6 +35,11 @@ problems, and it also improves code readability for coders and architects who
 are familiar with the patterns.
 
 
+# <a name="contribute">How to contribute</a> [&#8593;](#top)
+
+If you are willing to contribute to the project you will find the relevant information in our [developer wiki](https://github.com/iluwatar/java-design-patterns/wiki).
+
+
 # <a name="faq">Frequently asked questions</a> [&#8593;](#top)
 
 **<a id="Q1">Q: What is the difference between State and Strategy patterns?</a>**
@@ -97,98 +99,6 @@ blocked waiting for available object from the pool. This is not the case with
 Flyweight.
 
 
-
-# <a name="how-to-contribute">How to contribute</a> [&#8593;](#top)
-
-**To work on a new pattern** you need to do the following steps:
-
-1. If there is no issue for the new pattern yet, raise new issue. Comment on
-   the issue that you are working on it so that others don't start work on the
-   same thing.
-2. Fork the repository.
-3. Create a new folder for the pattern. The rough structure of the new folder would be as follows:
-    * etc (every resource related to the pattern, like diagrams)
-    * src (the source code of the pattern)
-    * index.md (the description of the pattern)
-    * pom.xml (the maven pom.xml)
-4. Implement the code changes in your fork. Remember to add sufficient comments
-   documenting the implementation. Reference the issue id e.g. #52 in your
-   commit messages.
-5. Format the code according to [Google Java Style Guide](https://google.github.io/styleguide/javaguide.html)
-   * [Eclipse configuration](https://github.com/google/styleguide/blob/gh-pages/eclipse-java-google-style.xml)
-   * [IntelliJ configuration](https://github.com/google/styleguide/blob/gh-pages/intellij-java-google-style.xml)
-6. Create a simple class diagram from your example code and put it inside of the etc folder.
-7. Add description of the pattern in index.md and link to the class diagram.
-   (Attention, all internal links must be relative to the pattern subdirectory, else the links dont link properly on the website)
-8. Create a pull request.
-
-**Structure of the index.md file**
-
-```markdown
---- # this is so called 'Yaml Front Matter', read up on it here: http://jekyllrb.com/docs/frontmatter/
-layout: pattern # layout must allways be pattern
-title: Best Pattern Ever # the properly formatted title
-folder: best-pattern-ever # the folder name in which this pattern lies
-permalink: /patterns/best-pattern-ever/ # the permalink to the pattern, to keep this uniform please stick to /patterns/FOLDER/
-
-# both categories and tags are Yaml Lists
-# you can either just pick one or write a list with '-'s
-# usable categories and tags are listed here: https://github.com/iluwatar/java-design-patterns/blob/gh-pages/_config.yml
-categories: creational # categories of the pattern
-tags: # tags of the pattern
- - best
- - ever
- - awesome
----
-
-**Intent:** Makes your code awesome
-
-![alt text](./etc/best_pattern.png "Best Pattern Ever")
-
-**Applicability:** Use the Best Pattern Ever pattern when
-
-* you want to be the best
-* you need to ...
-
-**Real world examples:**
-
-* [Nowhere](http://no.where.com)
-```
-
-**To add a new category or tag** you need to edit the _config.yml file of the gh-pages branch.
-In there you should find 2 yaml lists with the respective names 'category-list' and 'tag-list'
-
-**To work on one of the non-pattern issues** you need to do the following steps:
-
-1. Check that the issue has "help wanted" badge
-2. Comment on the issue that you are working on it
-3. Fork the repository.
-4. Implement the code changes in your fork. Remember to add sufficient comments
-   documenting the implementation. Reference the issue id e.g. #52 in your
-   commit messages.
-5. Create a pull request.
-
-**For creating/editing UML diagrams** you need [ObjectAid UML Explorer for Eclipse](http://www.objectaid.com/home).
-
-**For inspiration** check out the following sources:
-
-* there is a good list of design patterns at [Wikipedia](http://en.wikipedia.org/wiki/Software_design_pattern)
-* Martin Fowler's [Catalog of Patterns of Enterprise Application Architecture](http://martinfowler.com/eaaCatalog/)
-* [pattern language for microservices](http://microservices.io/patterns/index.html)
-* Microsoft's [Cloud Design Patterns](http://download.microsoft.com/download/B/B/6/BB69622C-AB5D-4D5F-9A12-B81B952C1169/CloudDesignPatternsBook-PDF.pdf)
-
-**Links to patterns applied in real world applications** are welcome. The links
-should be added to the corresponding section of the `index.md`.
-
-
-# <a name="versioning">Versioning</a> [&#8593;](#top)
-
-Java-design-patterns project uses [semantic versioning](http://semver.org/)
-scheme. However, version numbers in this project do not signify binary releases
-(since we don't make any) but rather milestones achieved on the roadmap. In
-other words, version numbers are used only for project planning sake.
-
-
 # <a name="credits">Credits</a> [&#8593;](#top)
 
 * [Design Patterns: Elements of Reusable Object-Oriented Software](http://www.amazon.com/Design-Patterns-Elements-Reusable-Object-Oriented/dp/0201633612)

abstract-factory/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>abstract-factory</artifactId>
   <dependencies>

adapter/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>adapter</artifactId>
   <dependencies>

async-method-invocation/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>async-method-invocation</artifactId>
   <dependencies>

bridge/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>bridge</artifactId>
   <dependencies>

builder/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>builder</artifactId>
   <dependencies>

business-delegate/pom.xml

@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.5.0</version>
+		<version>1.6.0</version>
 	</parent>
 	<artifactId>business-delegate</artifactId>
 	<dependencies>

callback/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>callback</artifactId>
   <dependencies>

chain/index.md

@@ -1,8 +1,8 @@
 ---
 layout: pattern
 title: Chain of responsibility
-folder: chain-of-responsibility
+folder: chain
-permalink: /patterns/chain-of-responsibility/
+permalink: /patterns/chain/
 categories: Behavioral
 tags: Java
 ---
@@ -11,7 +11,7 @@ tags: Java
 more than one object a chance to handle the request. Chain the receiving
 objects and pass the request along the chain until an object handles it.
 
-![alt text](./chain/etc/chain_1.png "Chain of Responsibility")
+![alt text](./etc/chain_1.png "Chain of Responsibility")
 
 **Applicability:** Use Chain of Responsibility when
 

chain/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>chain</artifactId>
   <dependencies>

command/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>command</artifactId>
   <dependencies>

composite/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>composite</artifactId>
   <dependencies>

dao/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>dao</artifactId>
   <dependencies>

decorator/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>decorator</artifactId>
   <dependencies>

dependency-injection/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>dependency-injection</artifactId>
   <dependencies>

double-checked-locking/pom.xml

@@ -3,7 +3,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>double-checked-locking</artifactId>
   <dependencies>

double-dispatch/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>double-dispatch</artifactId>
   <dependencies>

event-aggregator/pom.xml

@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.5.0</version>
+		<version>1.6.0</version>
 	</parent>
 	<artifactId>event-aggregator</artifactId>
 	<dependencies>

execute-around/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>execute-around</artifactId>
   <dependencies>

facade/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>facade</artifactId>
   <dependencies>

factory-method/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>factory-method</artifactId>
   <dependencies>

flux/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>flux</artifactId>
   <dependencies>

flyweight/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>flyweight</artifactId>
   <dependencies>

front-controller/pom.xml

@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.5.0</version>
+		<version>1.6.0</version>
 	</parent>
 	<artifactId>front-controller</artifactId>
 	<dependencies>

half-sync-half-async/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>half-sync-half-async</artifactId>
   <dependencies>

intercepting-filter/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>intercepting-filter</artifactId>
   <dependencies>

interpreter/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>interpreter</artifactId>
   <dependencies>

iterator/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>iterator</artifactId>
   <dependencies>

layers/pom.xml

@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.5.0</version>
+		<version>1.6.0</version>
 	</parent>
 	<groupId>com.iluwatar.layers</groupId>
 	<artifactId>layers</artifactId>

lazy-loading/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>lazy-loading</artifactId>
   <dependencies>

mediator/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>mediator</artifactId>
   <dependencies>

memento/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>memento</artifactId>
   <dependencies>

model-view-controller/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>model-view-controller</artifactId>
   <dependencies>

model-view-controller/src/main/java/com/iluwatar/model/view/controller/with/observer/App.java

@@ -0,0 +1,29 @@
+package com.iluwatar.model.view.controller.with.observer;
+
+/**
+ * 
+ * In this second example the model-view relationship is different. This time we use the Observer pattern to notify
+ * the {@link GiantView} each time the {@link GiantModel} is changed. This way the {@link GiantController} responsibilities
+ * are narrowed and it only needs to modify the {@link GiantModel} according to the user input.
+ * 
+ */
+public class App {
+	
+	/**
+	 * Program entry point
+	 * @param args command line args
+	 */
+    public static void main( String[] args ) {
+    	// create model, view and controller
+    	GiantModel giant = new GiantModel(Health.HEALTHY, Fatigue.ALERT, Nourishment.SATURATED);
+    	GiantView view = new GiantView();
+    	GiantController controller = new GiantController(giant, view);
+    	// initial display
+    	controller.updateView();
+    	// controller receives some interactions that affect the giant
+    	// model modifications trigger the view rendering automatically
+    	controller.setHealth(Health.WOUNDED);
+    	controller.setNourishment(Nourishment.HUNGRY);
+    	controller.setFatigue(Fatigue.TIRED);
+    }
+}

model-view-controller/src/main/java/com/iluwatar/model/view/controller/with/observer/Fatigue.java

@@ -0,0 +1,22 @@
+package com.iluwatar.model.view.controller.with.observer;
+
+/**
+ * 
+ * Fatigue enumeration
+ *
+ */
+public enum Fatigue {
+
+	ALERT("alert"), TIRED("tired"), SLEEPING("sleeping");
+	
+	private String title;
+	
+	Fatigue(String title) {
+		this.title = title;
+	}
+
+	@Override
+	public String toString() {
+		return title;
+	}	
+}

model-view-controller/src/main/java/com/iluwatar/model/view/controller/with/observer/GiantController.java

@@ -0,0 +1,46 @@
+package com.iluwatar.model.view.controller.with.observer;
+
+/**
+ * 
+ * GiantController updates the giant model.
+ *
+ */
+public class GiantController {
+
+	private GiantModel giant;
+	private GiantView view;
+
+	public GiantController(GiantModel giant, GiantView view) {
+		this.giant = giant;
+		this.view = view;
+		this.giant.registerObserver(this.view);
+	}
+	
+	public Health getHealth() {
+		return giant.getHealth();
+	}
+
+	public void setHealth(Health health) {
+		this.giant.setHealth(health);
+	}
+
+	public Fatigue getFatigue() {
+		return giant.getFatigue();
+	}
+
+	public void setFatigue(Fatigue fatigue) {
+		this.giant.setFatigue(fatigue);
+	}
+
+	public Nourishment getNourishment() {
+		return giant.getNourishment();
+	}
+
+	public void setNourishment(Nourishment nourishment) {
+		this.giant.setNourishment(nourishment);
+	}
+	
+	public void updateView() {
+		this.view.displayGiant(giant);
+	}
+}

model-view-controller/src/main/java/com/iluwatar/model/view/controller/with/observer/GiantModel.java

@@ -0,0 +1,63 @@
+package com.iluwatar.model.view.controller.with.observer;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 
+ * GiantModel contains the giant data.
+ *
+ */
+public class GiantModel {
+	
+	private Health health;
+	private Fatigue fatigue;
+	private Nourishment nourishment;
+	private List<GiantModelObserver> observers = new ArrayList<>();
+
+	GiantModel(Health health, Fatigue fatigue, Nourishment nourishment) {
+		this.health = health;
+		this.fatigue = fatigue;
+		this.nourishment = nourishment;	
+	}
+
+	public Health getHealth() {
+		return health;
+	}
+
+	public void setHealth(Health health) {
+		this.health = health;
+		notifyObservers();
+	}
+
+	public Fatigue getFatigue() {
+		return fatigue;
+	}
+
+	public void setFatigue(Fatigue fatigue) {
+		this.fatigue = fatigue;
+		notifyObservers();
+	}
+
+	public Nourishment getNourishment() {
+		return nourishment;
+	}
+
+	public void setNourishment(Nourishment nourishment) {
+		this.nourishment = nourishment;
+		notifyObservers();
+	}
+	
+	@Override
+	public String toString() {
+		return String.format("The giant looks %s, %s and %s.", health, fatigue, nourishment);
+	}
+	
+	public void registerObserver(GiantModelObserver observer) {
+		observers.add(observer);
+	}
+	
+	private void notifyObservers() {
+		observers.stream().forEach((GiantModelObserver o) -> o.modelChanged(this));
+	}
+}

model-view-controller/src/main/java/com/iluwatar/model/view/controller/with/observer/GiantModelObserver.java

@@ -0,0 +1,12 @@
+package com.iluwatar.model.view.controller.with.observer;
+
+/**
+ * 
+ * GiantModelObserver is the interface for delivering update notifications.
+ *
+ */
+public interface GiantModelObserver {
+	
+	void modelChanged(GiantModel model);
+
+}

model-view-controller/src/main/java/com/iluwatar/model/view/controller/with/observer/GiantView.java

@@ -0,0 +1,18 @@
+package com.iluwatar.model.view.controller.with.observer;
+
+/**
+ * 
+ * GiantView displays the giant
+ *
+ */
+public class GiantView implements GiantModelObserver {
+
+	public void displayGiant(GiantModel giant) {
+		System.out.println(giant);
+	}
+
+	@Override
+	public void modelChanged(GiantModel model) {
+		displayGiant(model);
+	}
+}

model-view-controller/src/main/java/com/iluwatar/model/view/controller/with/observer/Health.java

@@ -0,0 +1,22 @@
+package com.iluwatar.model.view.controller.with.observer;
+
+/**
+ * 
+ * Health enumeration
+ *
+ */
+public enum Health {
+	
+	HEALTHY("healthy"), WOUNDED("wounded"), DEAD("dead");
+	
+	private String title;
+	
+	Health(String title) {
+		this.title = title;
+	}
+
+	@Override
+	public String toString() {
+		return title;
+	}
+}

model-view-controller/src/main/java/com/iluwatar/model/view/controller/with/observer/Nourishment.java

@@ -0,0 +1,22 @@
+package com.iluwatar.model.view.controller.with.observer;
+
+/**
+ * 
+ * Nourishment enumeration
+ *
+ */
+public enum Nourishment {
+
+	SATURATED("saturated"), HUNGRY("hungry"), STARVING("starving");
+	
+	private String title;
+	
+	Nourishment(String title) {
+		this.title = title;
+	}
+
+	@Override
+	public String toString() {
+		return title;
+	}	
+}

model-view-controller/src/test/java/com/iluwatar/model/view/controller/with/observer/AppTest.java

@@ -0,0 +1,19 @@
+package com.iluwatar.model.view.controller.with.observer;
+
+import org.junit.Test;
+
+import com.iluwatar.model.view.controller.with.observer.App;
+
+/**
+ * 
+ * Application test
+ *
+ */
+public class AppTest {
+	
+	@Test
+	public void test() {
+		String[] args = {};
+		App.main(args);
+	}
+}

model-view-presenter/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>model-view-presenter</artifactId>
   <name>model-view-presenter</name>

multiton/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>multiton</artifactId>
   <dependencies>

naked-objects/dom/pom.xml

@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.5.0</version>
+		<version>1.6.0</version>
 	</parent>
 
 	<artifactId>naked-objects-dom</artifactId>

naked-objects/fixture/pom.xml

@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.5.0</version>
+		<version>1.6.0</version>
 	</parent>
 
 	<artifactId>naked-objects-fixture</artifactId>

naked-objects/integtests/pom.xml

@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.5.0</version>
+		<version>1.6.0</version>
 	</parent>
 
 	<artifactId>naked-objects-integtests</artifactId>

naked-objects/pom.xml

@@ -15,7 +15,7 @@
 	<parent>
 		<artifactId>java-design-patterns</artifactId>
 		<groupId>com.iluwatar</groupId>
-		<version>1.5.0</version>
+		<version>1.6.0</version>
 	</parent>
 
 	<artifactId>naked-objects</artifactId>
@@ -350,17 +350,17 @@
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-dom</artifactId>
-				<version>1.5.0</version>
+				<version>1.6.0</version>
 			</dependency>
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-fixture</artifactId>
-				<version>1.5.0</version>
+				<version>1.6.0</version>
 			</dependency>
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-webapp</artifactId>
-				<version>1.5.0</version>
+				<version>1.6.0</version>
 			</dependency>
 
 		</dependencies>

naked-objects/webapp/pom.xml

@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.5.0</version>
+		<version>1.6.0</version>
 	</parent>
 
 	<artifactId>naked-objects-webapp</artifactId>

null-object/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>null-object</artifactId>
   <dependencies>

object-pool/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>object-pool</artifactId>
   <dependencies>

observer/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>observer</artifactId>
   <dependencies>

poison-pill/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>poison-pill</artifactId>
   <dependencies>

pom.xml

@@ -4,7 +4,7 @@
 
 	<groupId>com.iluwatar</groupId>
 	<artifactId>java-design-patterns</artifactId>
-	<version>1.5.0</version>
+	<version>1.6.0</version>
 	<packaging>pom</packaging>
 
 	<properties>

private-class-data/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>private-class-data</artifactId>
   <dependencies>

property/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>property</artifactId>
   <dependencies>

prototype/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>prototype</artifactId>
   <dependencies>

proxy/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>proxy</artifactId>
   <dependencies>

repository/pom.xml

@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.5.0</version>
+		<version>1.6.0</version>
 	</parent>
 	<artifactId>repository</artifactId>
 	<dependencies>

resource-acquisition-is-initialization/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>resource-acquisition-is-initialization</artifactId>
   <dependencies>

servant/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>servant</artifactId>
   <dependencies>

service-layer/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>service-layer</artifactId>
   <dependencies>

service-locator/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>service-locator</artifactId>
   <dependencies>

singleton/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>singleton</artifactId>
   <dependencies>

specification/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>specification</artifactId>
   <dependencies>

state/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>state</artifactId>
   <dependencies>

step-builder/pom.xml

@@ -6,7 +6,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>step-builder</artifactId>
   <dependencies>

strategy/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>strategy</artifactId>
   <dependencies>

template-method/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>template-method</artifactId>
   <dependencies>

thread-pool/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>thread-pool</artifactId>
   <dependencies>

tolerant-reader/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>tolerant-reader</artifactId>
   <dependencies>

visitor/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.5.0</version>
+    <version>1.6.0</version>
   </parent>
   <artifactId>visitor</artifactId>
   <dependencies>