[JAVA-621] core-java-lang-oop-patterns module

* Creation

* Moved code from https://www.baeldung.com/java-composition-aggregation-association

* Moved code from https://www.baeldung.com/java-inheritance-composition

* Moved code from https://www.baeldung.com/java-immutable-object

* Moved code from https://www.baeldung.com/java-deep-copy

* Moved article references to the new README.md

core-java-modules/core-java-lang-oop-2/README.md

@@ -8,8 +8,6 @@ This module contains articles about Object-oriented programming (OOP) in Java
 - [Raw Types in Java](https://www.baeldung.com/raw-types-java)
 - [Marker Interfaces in Java](https://www.baeldung.com/java-marker-interfaces)
 - [Java equals() and hashCode() Contracts](https://www.baeldung.com/java-equals-hashcode-contracts)
-- [Immutable Objects in Java](https://www.baeldung.com/java-immutable-object)
-- [Inheritance and Composition (Is-a vs Has-a relationship) in Java](https://www.baeldung.com/java-inheritance-composition)
 - [Static and Default Methods in Interfaces in Java](https://www.baeldung.com/java-static-default-methods)
 - [Abstract Classes in Java](https://www.baeldung.com/java-abstract-class)
 - [[<-- Prev]](/core-java-modules/core-java-lang-oop)[[More -->]](/core-java-modules/core-java-lang-oop-3)

core-java-modules/core-java-lang-oop-3/README.md

@@ -8,7 +8,6 @@ This module contains articles about Object-oriented programming (OOP) in Java
 - [Guide to the super Java Keyword](https://www.baeldung.com/java-super)
 - [Guide to the this Java Keyword](https://www.baeldung.com/java-this)
 - [Java ‘public’ Access Modifier](https://www.baeldung.com/java-public-keyword)
-- [Composition, Aggregation, and Association in Java](https://www.baeldung.com/java-composition-aggregation-association)
 - [Nested Classes in Java](https://www.baeldung.com/java-nested-classes)
 - [A Guide to Inner Interfaces in Java](https://www.baeldung.com/java-inner-interfaces)
 - [Java Classes and Objects](https://www.baeldung.com/java-classes-objects)

core-java-modules/core-java-lang-oop-modules/core-java-lang-oop-patterns/README.md

@@ -0,0 +1,9 @@
+## Core Java Lang OOP - Patterns
+
+This module contains articles about Object-oriented programming (OOP) patterns in Java
+
+### Relevant Articles: 
+- [Composition, Aggregation, and Association in Java](https://www.baeldung.com/java-composition-aggregation-association)
+- [Inheritance and Composition (Is-a vs Has-a relationship) in Java](https://www.baeldung.com/java-inheritance-composition)
+- [Immutable Objects in Java](https://www.baeldung.com/java-immutable-object)
+- [How to Make a Deep Copy of an Object in Java](https://www.baeldung.com/java-deep-copy)

core-java-modules/core-java-lang-oop-modules/core-java-lang-oop-patterns/pom.xml

@@ -0,0 +1,45 @@
+<?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">
+    <parent>
+        <artifactId>core-java-lang-oop-modules</artifactId>
+        <groupId>com.baeldung.core-java-lang-oop-modules</groupId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>core-java-lang-oop-patterns</artifactId>
+    <name>core-java-lang-oop-patterns</name>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>${jackson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <version>${gson.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj-core.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <gson.version>2.8.2</gson.version>
+        <assertj-core.version>3.10.0</assertj-core.version>
+    </properties>
+</project>

core-java-modules/core-java-lang-oop-modules/pom.xml

@@ -16,5 +16,6 @@
 
     <modules>
         <module>core-java-lang-oop-constructors</module>
+        <module>core-java-lang-oop-patterns</module>
     </modules>
 </project>