diff --git a/core-java-modules/core-java-collections-set-2/README.md b/core-java-modules/core-java-collections-set-2/README.md
index 1eed6238249c..698ff5229972 100644
--- a/core-java-modules/core-java-collections-set-2/README.md
+++ b/core-java-modules/core-java-collections-set-2/README.md
@@ -2,9 +2,11 @@
 
 - [Using Streams to Collect Into a TreeSet](https://www.baeldung.com/java-stream-collect-into-treeset)
 - [A Guide to LinkedHashSet in Java](https://www.baeldung.com/java-linkedhashset)
-- [Sorting a HashSet in Java](https://www.baeldung.com/java-sort-hashset)
-- [How to Get First Item From a Java Set](https://www.baeldung.com/first-item-set)
 - [Cartesian Product of Any Number of Sets in Java](https://www.baeldung.com/java-cartesian-product-sets)
 - [How to Get Index of an Item in Java Set](https://www.baeldung.com/java-set-element-find-index)
 - [Check if an Element Is Present in a Set in Java](https://www.baeldung.com/java-set-membership)
+- [Set Operations in Java](http://www.baeldung.com/set-operations-in-java)
+- [HashSet and TreeSet Comparison](http://www.baeldung.com/java-hashset-vs-treeset)
+- [Copying Sets in Java](https://www.baeldung.com/java-copy-sets)
+- [Immutable Set in Java](https://www.baeldung.com/java-immutable-set)
 - More articles: [[<-- prev]](/core-java-modules/core-java-collections-set)
diff --git a/core-java-modules/core-java-collections-set-2/pom.xml b/core-java-modules/core-java-collections-set-2/pom.xml
index 1e82174d0ae6..0cc9b99e1e01 100644
--- a/core-java-modules/core-java-collections-set-2/pom.xml
+++ b/core-java-modules/core-java-collections-set-2/pom.xml
@@ -25,6 +25,21 @@
             <artifactId>commons-collections4</artifactId>
             <version>${commons-collections4.version}</version>
         </dependency>
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <version>${gson.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-collections4</artifactId>
+            <version>${commons-collections4.version}</version>
+        </dependency>
 
         <dependency>
             <groupId>org.testng</groupId>
@@ -42,5 +57,7 @@
             </plugin>
         </plugins>
     </build>
-
+    <properties>
+        <gson.version>2.11.0</gson.version>
+    </properties>
 </project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-collections-set/src/main/java/com/baeldung/set/CopySets.java b/core-java-modules/core-java-collections-set-2/src/main/java/com/baeldung/set/CopySets.java
similarity index 100%
rename from core-java-modules/core-java-collections-set/src/main/java/com/baeldung/set/CopySets.java
rename to core-java-modules/core-java-collections-set-2/src/main/java/com/baeldung/set/CopySets.java
diff --git a/core-java-modules/core-java-collections-set/src/main/java/com/baeldung/set/UnmodifiableSet.java b/core-java-modules/core-java-collections-set-2/src/main/java/com/baeldung/set/UnmodifiableSet.java
similarity index 100%
rename from core-java-modules/core-java-collections-set/src/main/java/com/baeldung/set/UnmodifiableSet.java
rename to core-java-modules/core-java-collections-set-2/src/main/java/com/baeldung/set/UnmodifiableSet.java
diff --git a/core-java-modules/core-java-collections-set/src/test/java/com/baeldung/java/set/SetUnitTest.java b/core-java-modules/core-java-collections-set-2/src/test/java/com/baeldung/java/set/SetUnitTest.java
similarity index 100%
rename from core-java-modules/core-java-collections-set/src/test/java/com/baeldung/java/set/SetUnitTest.java
rename to core-java-modules/core-java-collections-set-2/src/test/java/com/baeldung/java/set/SetUnitTest.java
diff --git a/core-java-modules/core-java-collections-set/src/test/java/com/baeldung/set/SetExamplesUnitTest.java b/core-java-modules/core-java-collections-set-2/src/test/java/com/baeldung/set/SetExamplesUnitTest.java
similarity index 100%
rename from core-java-modules/core-java-collections-set/src/test/java/com/baeldung/set/SetExamplesUnitTest.java
rename to core-java-modules/core-java-collections-set-2/src/test/java/com/baeldung/set/SetExamplesUnitTest.java
diff --git a/core-java-modules/core-java-collections-set/src/test/java/com/baeldung/set/SetOperationsUnitTest.java b/core-java-modules/core-java-collections-set-2/src/test/java/com/baeldung/set/SetOperationsUnitTest.java
similarity index 100%
rename from core-java-modules/core-java-collections-set/src/test/java/com/baeldung/set/SetOperationsUnitTest.java
rename to core-java-modules/core-java-collections-set-2/src/test/java/com/baeldung/set/SetOperationsUnitTest.java
diff --git a/core-java-modules/core-java-collections-set/README.md b/core-java-modules/core-java-collections-set/README.md
index bec98538ec5c..1363bae97145 100644
--- a/core-java-modules/core-java-collections-set/README.md
+++ b/core-java-modules/core-java-collections-set/README.md
@@ -3,13 +3,10 @@
 This module contains articles about the Java Set collection
 
 ### Relevant Articles: 
-- [Set Operations in Java](http://www.baeldung.com/set-operations-in-java)
-- [HashSet and TreeSet Comparison](http://www.baeldung.com/java-hashset-vs-treeset)
 - [A Guide to HashSet in Java](http://www.baeldung.com/java-hashset)
 - [A Guide to TreeSet in Java](http://www.baeldung.com/java-tree-set)
 - [Initializing HashSet at the Time of Construction](http://www.baeldung.com/java-initialize-hashset)
 - [Guide to EnumSet](https://www.baeldung.com/java-enumset)
-- [Set Operations in Java](https://www.baeldung.com/java-set-operations)
-- [Copying Sets in Java](https://www.baeldung.com/java-copy-sets)
-- [Immutable Set in Java](https://www.baeldung.com/java-immutable-set)
 - [Find the Difference Between Two Sets](https://www.baeldung.com/java-difference-between-sets)
+- [Sorting a HashSet in Java](https://www.baeldung.com/java-sort-hashset)
+- [How to Get First Item From a Java Set](https://www.baeldung.com/first-item-set)
diff --git a/core-java-modules/core-java-collections-set-2/src/test/java/com/baeldung/firstitemfromset/GetFirstItemFromSetUnitTest.java b/core-java-modules/core-java-collections-set/src/test/java/com/baeldung/firstitemfromset/GetFirstItemFromSetUnitTest.java
similarity index 100%
rename from core-java-modules/core-java-collections-set-2/src/test/java/com/baeldung/firstitemfromset/GetFirstItemFromSetUnitTest.java
rename to core-java-modules/core-java-collections-set/src/test/java/com/baeldung/firstitemfromset/GetFirstItemFromSetUnitTest.java
diff --git a/core-java-modules/core-java-collections-set-2/src/test/java/com/baeldung/hashset/sorting/HashSetUnitTest.java b/core-java-modules/core-java-collections-set/src/test/java/com/baeldung/hashset/sorting/HashSetUnitTest.java
similarity index 100%
rename from core-java-modules/core-java-collections-set-2/src/test/java/com/baeldung/hashset/sorting/HashSetUnitTest.java
rename to core-java-modules/core-java-collections-set/src/test/java/com/baeldung/hashset/sorting/HashSetUnitTest.java