move design patterns to new module (#4206)

* move design patterns to new module

* fix logger import

core-java/src/main/java/com/baeldung/designpatterns/creational/abstractfactory/Color.java

@@ -1,5 +0,0 @@
-package com.baeldung.designpatterns.creational.abstractfactory;
-
-public interface Color {
-    String getColor();
-}

core-java/src/main/java/com/baeldung/designpatterns/creational/factory/Polygon.java

@@ -1,5 +0,0 @@
-package com.baeldung.designpatterns.creational.factory;
-
-public interface Polygon {
-    String getType();
-}

core-java/src/main/java/com/baeldung/numberofdigits/NumberOfDigitsDriver.java

@@ -1,10 +1,12 @@
 package com.baeldung.numberofdigits;
 
-import static com.baeldung.designpatterns.util.LogerUtil.LOG;
+import org.apache.log4j.Logger;
 
 public class NumberOfDigitsDriver {
     private static NumberOfDigits numberOfDigits;
     
+    private static Logger LOG = Logger.getLogger(NumberOfDigitsDriver.class);
+    
     static {
         numberOfDigits = new NumberOfDigits();
     }

patterns/design-patterns/pom.xml

@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
-    <groupId>com.baeldung.pattern.templatemethod</groupId>
+    <groupId>com.baeldung</groupId>
-    <artifactId>pattern.templatemethod</artifactId>
+    <artifactId>design-patterns</artifactId>
     <version>1.0</version>
     <packaging>jar</packaging>
     <parent>
-        <groupId>com.baeldung.patterns</groupId>
+        <groupId>com.baeldung</groupId>
         <artifactId>patterns-parent</artifactId>
         <version>1.0.0-SNAPSHOT</version>
         <relativePath>..</relativePath>
@@ -31,10 +31,22 @@
             <version>3.8.0</version>
             <scope>test</scope>
         </dependency>
+          <dependency>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+            <version>${log4j.version}</version>
+        </dependency>
+           <dependency>
+            <groupId>com.googlecode.grep4j</groupId>
+            <artifactId>grep4j</artifactId>
+            <version>${grep4j.version}</version>
+        </dependency>
     </dependencies>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
+        <log4j.version>1.2.17</log4j.version>
+          <grep4j.version>1.8.7</grep4j.version>
     </properties>
 </project>

patterns/design-patterns/src/main/java/com/baeldung/adapter/AdapterPatternDriver.java

@@ -1,6 +1,6 @@
-package com.baeldung.designpatterns.adapter;
+package com.baeldung.adapter;
 
-import static com.baeldung.designpatterns.util.LogerUtil.LOG;
+import static com.baeldung.util.LogerUtil.LOG;
 
 public class AdapterPatternDriver {
     

patterns/design-patterns/src/main/java/com/baeldung/adapter/AstonMartin.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.adapter;
+package com.baeldung.adapter;
 
 public class AstonMartin implements Movable {
     @Override

patterns/design-patterns/src/main/java/com/baeldung/adapter/BugattiVeyron.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.adapter;
+package com.baeldung.adapter;
 
 public class BugattiVeyron implements Movable {
     @Override

patterns/design-patterns/src/main/java/com/baeldung/adapter/McLaren.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.adapter;
+package com.baeldung.adapter;
 
 public class McLaren implements Movable {
     @Override

patterns/design-patterns/src/main/java/com/baeldung/adapter/Movable.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.adapter;
+package com.baeldung.adapter;
 
 public interface Movable {
     // returns speed in MPH 

patterns/design-patterns/src/main/java/com/baeldung/adapter/MovableAdapter.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.adapter;
+package com.baeldung.adapter;
 
 public interface MovableAdapter {
     // returns speed in KMPH 

patterns/design-patterns/src/main/java/com/baeldung/adapter/MovableAdapterImpl.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.adapter;
+package com.baeldung.adapter;
 
 public class MovableAdapterImpl implements MovableAdapter {
     private Movable luxuryCars;

patterns/design-patterns/src/main/java/com/baeldung/bridge/Blue.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.bridge;
+package com.baeldung.bridge;
 
 public class Blue implements Color {
     @Override

patterns/design-patterns/src/main/java/com/baeldung/bridge/BridgePatternDriver.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.bridge;
+package com.baeldung.bridge;
 
 public class BridgePatternDriver {
 

patterns/design-patterns/src/main/java/com/baeldung/bridge/Color.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.bridge;
+package com.baeldung.bridge;
 
 public interface Color {
     String fill();

patterns/design-patterns/src/main/java/com/baeldung/bridge/Red.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.bridge;
+package com.baeldung.bridge;
 
 public class Red implements Color {
 

patterns/design-patterns/src/main/java/com/baeldung/bridge/Shape.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.bridge;
+package com.baeldung.bridge;
 
 public abstract class Shape {
     protected Color color;

patterns/design-patterns/src/main/java/com/baeldung/bridge/Square.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.bridge;
+package com.baeldung.bridge;
 
 public class Square extends Shape {
 

patterns/design-patterns/src/main/java/com/baeldung/bridge/Triangle.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.bridge;
+package com.baeldung.bridge;
 
 public class Triangle extends Shape {
 

patterns/design-patterns/src/main/java/com/baeldung/composite/CompositeDemo.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.composite;
+package com.baeldung.composite;
 
 /**
  * Created by Gebruiker on 5/3/2018.

patterns/design-patterns/src/main/java/com/baeldung/composite/Department.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.composite;
+package com.baeldung.composite;
 
 /**
  * Created by Gebruiker on 5/1/2018.

patterns/design-patterns/src/main/java/com/baeldung/composite/FinancialDepartment.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.composite;
+package com.baeldung.composite;
 
 /**
  * Created by Gebruiker on 5/1/2018.

patterns/design-patterns/src/main/java/com/baeldung/composite/HeadDepartment.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.composite;
+package com.baeldung.composite;
 
 import java.util.ArrayList;
 import java.util.List;

patterns/design-patterns/src/main/java/com/baeldung/composite/SalesDepartment.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.composite;
+package com.baeldung.composite;
 
 /**
  * Created by Gebruiker on 5/1/2018.

patterns/design-patterns/src/main/java/com/baeldung/creational/abstractfactory/AbstractFactory.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.abstractfactory;
+package com.baeldung.creational.abstractfactory;
 
 public interface AbstractFactory {
     Animal getAnimal(String toyType) ;

patterns/design-patterns/src/main/java/com/baeldung/creational/abstractfactory/AbstractPatternDriver.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.abstractfactory;
+package com.baeldung.creational.abstractfactory;
 
 public class AbstractPatternDriver {
     public static void main(String[] args) {

patterns/design-patterns/src/main/java/com/baeldung/creational/abstractfactory/Animal.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.abstractfactory;
+package com.baeldung.creational.abstractfactory;
 
 public interface Animal {
     String getType();

patterns/design-patterns/src/main/java/com/baeldung/creational/abstractfactory/AnimalFactory.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.abstractfactory;
+package com.baeldung.creational.abstractfactory;
 
 public class AnimalFactory implements AbstractFactory {
 

patterns/design-patterns/src/main/java/com/baeldung/creational/abstractfactory/Brown.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.abstractfactory;
+package com.baeldung.creational.abstractfactory;
 
 public class Brown implements Color {
 

patterns/design-patterns/src/main/java/com/baeldung/creational/abstractfactory/Color.java

@@ -0,0 +1,5 @@
+package com.baeldung.creational.abstractfactory;
+
+public interface Color {
+    String getColor();
+}

patterns/design-patterns/src/main/java/com/baeldung/creational/abstractfactory/ColorFactory.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.abstractfactory;
+package com.baeldung.creational.abstractfactory;
 
 public class ColorFactory implements AbstractFactory {
 

patterns/design-patterns/src/main/java/com/baeldung/creational/abstractfactory/Dog.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.abstractfactory;
+package com.baeldung.creational.abstractfactory;
 
 public class Dog implements Animal {
 

patterns/design-patterns/src/main/java/com/baeldung/creational/abstractfactory/Duck.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.abstractfactory;
+package com.baeldung.creational.abstractfactory;
 
 public class Duck implements Animal {
 

patterns/design-patterns/src/main/java/com/baeldung/creational/abstractfactory/FactoryProvider.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.abstractfactory;
+package com.baeldung.creational.abstractfactory;
 
 public class FactoryProvider {
     public static AbstractFactory getFactory(String choice){

patterns/design-patterns/src/main/java/com/baeldung/creational/abstractfactory/White.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.abstractfactory;
+package com.baeldung.creational.abstractfactory;
 
 public class White implements Color {
 

patterns/design-patterns/src/main/java/com/baeldung/creational/builder/BankAccount.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.builder;
+package com.baeldung.creational.builder;
 
 public class BankAccount {
     private String name;

patterns/design-patterns/src/main/java/com/baeldung/creational/builder/BuilderPatternDriver.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.builder;
+package com.baeldung.creational.builder;
 
 public class BuilderPatternDriver {
     public static void main(String[] args) {

patterns/design-patterns/src/main/java/com/baeldung/creational/factory/FactoryDriver.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.factory;
+package com.baeldung.creational.factory;
 
 public class FactoryDriver {
     public static void main(String[] args) {

patterns/design-patterns/src/main/java/com/baeldung/creational/factory/Heptagon.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.factory;
+package com.baeldung.creational.factory;
 
 public class Heptagon implements Polygon {
 

patterns/design-patterns/src/main/java/com/baeldung/creational/factory/Octagon.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.factory;
+package com.baeldung.creational.factory;
 
 public class Octagon implements Polygon {
 

patterns/design-patterns/src/main/java/com/baeldung/creational/factory/Pentagon.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.factory;
+package com.baeldung.creational.factory;
 
 public class Pentagon implements Polygon {
 

patterns/design-patterns/src/main/java/com/baeldung/creational/factory/Polygon.java

@@ -0,0 +1,5 @@
+package com.baeldung.creational.factory;
+
+public interface Polygon {
+    String getType();
+}

patterns/design-patterns/src/main/java/com/baeldung/creational/factory/PolygonFactory.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.factory;
+package com.baeldung.creational.factory;
 
 public class PolygonFactory {
     public Polygon getPolygon(int numberOfSides) {

patterns/design-patterns/src/main/java/com/baeldung/creational/factory/Square.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.factory;
+package com.baeldung.creational.factory;
 
 public class Square implements Polygon {
 

patterns/design-patterns/src/main/java/com/baeldung/creational/factory/Triangle.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.factory;
+package com.baeldung.creational.factory;
 
 public class Triangle implements Polygon {
 

patterns/design-patterns/src/main/java/com/baeldung/creational/singleton/Singleton.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.singleton;
+package com.baeldung.creational.singleton;
 
 public class Singleton  {    
     private Singleton() {}

patterns/design-patterns/src/main/java/com/baeldung/creational/singleton/SingletonDriver.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.creational.singleton;
+package com.baeldung.creational.singleton;
 
 public class SingletonDriver {
     public static void main(String[] args) {

patterns/design-patterns/src/main/java/com/baeldung/decorator/BubbleLights.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.decorator;
+package com.baeldung.decorator;
 
 public class BubbleLights extends TreeDecorator {
 

patterns/design-patterns/src/main/java/com/baeldung/decorator/ChristmasTree.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.decorator;
+package com.baeldung.decorator;
 
 public interface ChristmasTree {
     String decorate();

patterns/design-patterns/src/main/java/com/baeldung/decorator/ChristmasTreeImpl.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.decorator;
+package com.baeldung.decorator;
 
 public class ChristmasTreeImpl implements ChristmasTree {
 

patterns/design-patterns/src/main/java/com/baeldung/decorator/DecoratorPatternDriver.java

@@ -1,6 +1,6 @@
-package com.baeldung.designpatterns.decorator;
+package com.baeldung.decorator;
 
-import static com.baeldung.designpatterns.util.LogerUtil.LOG;
+import static com.baeldung.util.LogerUtil.LOG;
 
 public class DecoratorPatternDriver {
 

patterns/design-patterns/src/main/java/com/baeldung/decorator/Garland.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.decorator;
+package com.baeldung.decorator;
 
 public class Garland extends TreeDecorator {
 

patterns/design-patterns/src/main/java/com/baeldung/decorator/TreeDecorator.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.decorator;
+package com.baeldung.decorator;
 
 public abstract class TreeDecorator implements ChristmasTree {
     private ChristmasTree tree;

patterns/design-patterns/src/main/java/com/baeldung/facade/CarEngineFacade.java

@@ -1,6 +1,6 @@
-package com.baeldung.pattern.facade;
+package com.baeldung.facade;
 
-import com.baeldung.pattern.facade.carsystem.*;
+import com.baeldung.facade.carsystem.*;
 
 public class CarEngineFacade {
     private static final Integer DEFAULT_COOLING_TEMP = 90;

patterns/design-patterns/src/main/java/com/baeldung/facade/carsystem/AirFlowController.java

@@ -1,4 +1,4 @@
-package com.baeldung.pattern.facade.carsystem;
+package com.baeldung.facade.carsystem;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

patterns/design-patterns/src/main/java/com/baeldung/facade/carsystem/AirFlowMeter.java

@@ -1,4 +1,4 @@
-package com.baeldung.pattern.facade.carsystem;
+package com.baeldung.facade.carsystem;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -8,6 +8,6 @@ public class AirFlowMeter {
     private static final Logger LOGGER = LoggerFactory.getLogger(AirFlowMeter.class);
 
     public void getMeasurements() {
-        LOGGER.info("Getting air measurements...");
+        LOGGER.info("Getting air measurements..");
     }
 }

patterns/design-patterns/src/main/java/com/baeldung/facade/carsystem/CatalyticConverter.java

@@ -1,4 +1,4 @@
-package com.baeldung.pattern.facade.carsystem;
+package com.baeldung.facade.carsystem;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

patterns/design-patterns/src/main/java/com/baeldung/facade/carsystem/CoolingController.java

@@ -1,4 +1,4 @@
-package com.baeldung.pattern.facade.carsystem;
+package com.baeldung.facade.carsystem;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -28,7 +28,7 @@ public class CoolingController {
     }
 
     public void stop() {
-        LOGGER.info("Stopping Cooling Controller...");
+        LOGGER.info("Stopping Cooling Controller..");
         radiator.off();
     }
 }

patterns/design-patterns/src/main/java/com/baeldung/facade/carsystem/FuelInjector.java

@@ -1,4 +1,4 @@
-package com.baeldung.pattern.facade.carsystem;
+package com.baeldung.facade.carsystem;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -18,6 +18,6 @@ public class FuelInjector {
     }
 
     public void off() {
-        LOGGER.info("Stopping Fuel injector...");
+        LOGGER.info("Stopping Fuel injector..");
     }
 }

patterns/design-patterns/src/main/java/com/baeldung/facade/carsystem/FuelPump.java

@@ -1,4 +1,4 @@
-package com.baeldung.pattern.facade.carsystem;
+package com.baeldung.facade.carsystem;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -8,6 +8,6 @@ public class FuelPump {
     private static final Logger LOGGER = LoggerFactory.getLogger(FuelPump.class);
 
     public void pump() {
-        LOGGER.info("Fuel Pump is pumping fuel...");
+        LOGGER.info("Fuel Pump is pumping fuel..");
     }
 }

patterns/design-patterns/src/main/java/com/baeldung/facade/carsystem/Radiator.java

@@ -1,4 +1,4 @@
-package com.baeldung.pattern.facade.carsystem;
+package com.baeldung.facade.carsystem;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

patterns/design-patterns/src/main/java/com/baeldung/facade/carsystem/Starter.java

@@ -1,4 +1,4 @@
-package com.baeldung.pattern.facade.carsystem;
+package com.baeldung.facade.carsystem;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -8,6 +8,6 @@ public class Starter {
     private static final Logger LOGGER = LoggerFactory.getLogger(Starter.class);
 
     public void start() {
-        LOGGER.info("Starting...");
+        LOGGER.info("Starting..");
     }
 }

patterns/design-patterns/src/main/java/com/baeldung/facade/carsystem/TemperatureSensor.java

@@ -1,4 +1,4 @@
-package com.baeldung.pattern.facade.carsystem;
+package com.baeldung.facade.carsystem;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -7,7 +7,7 @@ public class TemperatureSensor {
     private static final Logger LOGGER = LoggerFactory.getLogger(TemperatureSensor.class);
 
     public void getTemperature(){
-        LOGGER.info("Getting temperature from the sensor...");
+        LOGGER.info("Getting temperature from the sensor..");
     }
 
 }

patterns/design-patterns/src/main/java/com/baeldung/flyweight/Car.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.flyweight;
+package com.baeldung.flyweight;
 
 import java.awt.Color;
 
@@ -53,7 +53,7 @@ public class Car implements Vehicle {
 	/*
 	 * (non-Javadoc)
 	 * 
-	 * @see com.baeldung.designpatterns.flyweight.Vehicle#start()
+	 * @see com.baeldung.flyweight.Vehicle#start()
 	 */
 	@Override
 	public void start() {
@@ -64,7 +64,7 @@ public class Car implements Vehicle {
 	/*
 	 * (non-Javadoc)
 	 * 
-	 * @see com.baeldung.designpatterns.flyweight.Vehicle#stop()
+	 * @see com.baeldung.flyweight.Vehicle#stop()
 	 */
 	@Override
 	public void stop() {
@@ -75,7 +75,7 @@ public class Car implements Vehicle {
 	/*
 	 * (non-Javadoc)
 	 * 
-	 * @see com.baeldung.designpatterns.flyweight.Vehicle#getColor()
+	 * @see com.baeldung.flyweight.Vehicle#getColor()
 	 */
 	@Override
 	public Color getColor() {

patterns/design-patterns/src/main/java/com/baeldung/flyweight/Engine.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.flyweight;
+package com.baeldung.flyweight;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

patterns/design-patterns/src/main/java/com/baeldung/flyweight/Vehicle.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.flyweight;
+package com.baeldung.flyweight;
 
 import java.awt.Color;
 

patterns/design-patterns/src/main/java/com/baeldung/flyweight/VehicleFactory.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.flyweight;
+package com.baeldung.flyweight;
 
 import java.awt.Color;
 import java.util.HashMap;

patterns/design-patterns/src/main/java/com/baeldung/observer/Channel.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.observer;
+package com.baeldung.observer;
 
 public interface Channel {
     public void update(Object o);

patterns/design-patterns/src/main/java/com/baeldung/observer/NewsAgency.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.observer;
+package com.baeldung.observer;
 
 import java.util.ArrayList;
 import java.util.List;

patterns/design-patterns/src/main/java/com/baeldung/observer/NewsChannel.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.observer;
+package com.baeldung.observer;
 
 public class NewsChannel implements Channel {
 

patterns/design-patterns/src/main/java/com/baeldung/observer/ONewsAgency.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.observer;
+package com.baeldung.observer;
 
 import java.util.Observable;
 

patterns/design-patterns/src/main/java/com/baeldung/observer/ONewsChannel.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.observer;
+package com.baeldung.observer;
 
 import java.util.Observable;
 import java.util.Observer;

patterns/design-patterns/src/main/java/com/baeldung/observer/PCLNewsAgency.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.observer;
+package com.baeldung.observer;
 
 import java.beans.PropertyChangeListener;
 import java.beans.PropertyChangeSupport;

patterns/design-patterns/src/main/java/com/baeldung/observer/PCLNewsChannel.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.observer;
+package com.baeldung.observer;
 
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;

patterns/design-patterns/src/main/java/com/baeldung/proxy/ExpensiveObject.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.proxy;
+package com.baeldung.proxy;
 
 public interface ExpensiveObject {
     void process();

patterns/design-patterns/src/main/java/com/baeldung/proxy/ExpensiveObjectImpl.java

@@ -1,6 +1,6 @@
-package com.baeldung.designpatterns.proxy;
+package com.baeldung.proxy;
 
-import static com.baeldung.designpatterns.util.LogerUtil.LOG;;
+import static com.baeldung.util.LogerUtil.LOG;;
 
 public class ExpensiveObjectImpl implements ExpensiveObject {
 
@@ -14,7 +14,7 @@ public class ExpensiveObjectImpl implements ExpensiveObject {
     }
 
     private void heavyInitialConfiguration() {
-        LOG.info("Loading initial configuration...");
+        LOG.info("Loading initial configuration..");
     }
 
 }

patterns/design-patterns/src/main/java/com/baeldung/proxy/ExpensiveObjectProxy.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.proxy;
+package com.baeldung.proxy;
 
 public class ExpensiveObjectProxy implements ExpensiveObject{
     private static ExpensiveObject object;

patterns/design-patterns/src/main/java/com/baeldung/proxy/ProxyPatternDriver.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.proxy;
+package com.baeldung.proxy;
 
 public class ProxyPatternDriver {
     public static void main(String[] args) {

patterns/design-patterns/src/main/java/com/baeldung/service/locator/Cache.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.service.locator;
+package com.baeldung.service.locator;
 
 import java.util.ArrayList;
 import java.util.List;

patterns/design-patterns/src/main/java/com/baeldung/service/locator/EmailService.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.service.locator;
+package com.baeldung.service.locator;
 
 /**
  * Created by Gebruiker on 4/20/2018.

patterns/design-patterns/src/main/java/com/baeldung/service/locator/InitialContext.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.service.locator;
+package com.baeldung.service.locator;
 
 /**
  * Created by Gebruiker on 4/20/2018.

patterns/design-patterns/src/main/java/com/baeldung/service/locator/Main.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.service.locator;
+package com.baeldung.service.locator;
 
 /**
  * Created by Gebruiker on 4/20/2018.

patterns/design-patterns/src/main/java/com/baeldung/service/locator/MessagingService.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.service.locator;
+package com.baeldung.service.locator;
 
 public interface MessagingService {
 

patterns/design-patterns/src/main/java/com/baeldung/service/locator/SMSService.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.service.locator;
+package com.baeldung.service.locator;
 
 /**
  * Created by Gebruiker on 4/20/2018.

patterns/design-patterns/src/main/java/com/baeldung/service/locator/ServiceLocator.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.service.locator;
+package com.baeldung.service.locator;
 
 /**
  * Created by Gebruiker on 4/20/2018.

patterns/design-patterns/src/main/java/com/baeldung/singleton/ClassSingleton.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.singleton;
+package com.baeldung.singleton;
 
 public class ClassSingleton {
 

patterns/design-patterns/src/main/java/com/baeldung/singleton/EnumSingleton.java

@@ -1,4 +1,4 @@
-package com.baeldung.designpatterns.singleton;
+package com.baeldung.singleton;
 
 public enum EnumSingleton {