diff --git a/core-java-modules/core-java-collections-set/pom.xml b/core-java-modules/core-java-collections-set/pom.xml
index 4c1b880f31..21b1b87ebe 100644
--- a/core-java-modules/core-java-collections-set/pom.xml
+++ b/core-java-modules/core-java-collections-set/pom.xml
@@ -1,5 +1,4 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<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>
 	<artifactId>core-java-collections-set</artifactId>
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/src/main/java/com/baeldung/set/CopySets.java
index 0a173cb772..950ae41357 100644
--- a/core-java-modules/core-java-collections-set/src/main/java/com/baeldung/set/CopySets.java
+++ b/core-java-modules/core-java-collections-set/src/main/java/com/baeldung/set/CopySets.java
@@ -11,54 +11,55 @@ import com.google.gson.Gson;
 
 public class CopySets {
 
-	// Copy Constructor
-	public static <T> Set<T> copyByConstructor(Set<T> original) {
-		Set<T> copy = new HashSet<>(original);
-		return copy;
-	}
+    // Copy Constructor
+    public static <T> Set<T> copyByConstructor(Set<T> original) {
+        Set<T> copy = new HashSet<>(original);
+        return copy;
+    }
 
-	// Set.addAll
-	public static <T> Set<T> copyBySetAddAll(Set<T> original) {
-		Set<T> copy = new HashSet<>();
-		copy.addAll(original);
-		return copy;
-	}
+    // Set.addAll
+    public static <T> Set<T> copyBySetAddAll(Set<T> original) {
+        Set<T> copy = new HashSet<>();
+        copy.addAll(original);
+        return copy;
+    }
 
-	// Set.clone
-	public static <T> Set<T> copyBySetClone(HashSet<T> original) {
-		Set<T> copy = (Set<T>) original.clone();
-		return copy;
-	}
+    // Set.clone
+    public static <T> Set<T> copyBySetClone(HashSet<T> original) {
+        Set<T> copy = (Set<T>) original.clone();
+        return copy;
+    }
 
-	// JSON
-	public static <T> Set<T> copyByJson(Set<T> original) {
-		Gson gson = new Gson();
-		String jsonStr = gson.toJson(original);
-		Set<T> copy = gson.fromJson(jsonStr, Set.class);
+    // JSON
+    public static <T> Set<T> copyByJson(Set<T> original) {
+        Gson gson = new Gson();
+        String jsonStr = gson.toJson(original);
+        Set<T> copy = gson.fromJson(jsonStr, Set.class);
 
-		return copy;
-	}
+        return copy;
+    }
 
-	// Apache Commons Lang
-	public static <T extends Serializable> Set<T> copyByApacheCommonsLang(Set<T> original) {
-		Set<T> copy = new HashSet<>();
-		for (T item : original) {
-			copy.add((T) SerializationUtils.clone(item));
-		}
-		return copy;
-	}
+    // Apache Commons Lang
+    public static <T extends Serializable> Set<T> copyByApacheCommonsLang(Set<T> original) {
+        Set<T> copy = new HashSet<>();
+        for (T item : original) {
+            copy.add((T) SerializationUtils.clone(item));
+        }
+        return copy;
+    }
 
-	// Collectors.toSet
-	public static <T extends Serializable> Set<T> copyByCollectorsToSet(Set<T> original) {
-		Set<T> copy = original.stream().collect(Collectors.toSet());
+    // Collectors.toSet
+    public static <T extends Serializable> Set<T> copyByCollectorsToSet(Set<T> original) {
+        Set<T> copy = original.stream()
+            .collect(Collectors.toSet());
 
-		return copy;
-	}
+        return copy;
+    }
 
-	// Using Java 10
-	public static <T> Set<T> copyBySetCopyOf(Set<T> original) {
-		Set<T> copy = Set.copyOf(original);
-		return copy;
-	}
+    // Using Java 10
+    public static <T> Set<T> copyBySetCopyOf(Set<T> original) {
+        Set<T> copy = Set.copyOf(original);
+        return copy;
+    }
 
 }