diff --git a/core-java-modules/core-java-collections-4/src/main/java/com/baeldung/maps/initialize/EmptyMapInitializer.java b/core-java-modules/core-java-collections-4/src/main/java/com/baeldung/maps/initialize/EmptyMapInitializer.java
index 3dc644f1af..78819cc21e 100644
--- a/core-java-modules/core-java-collections-4/src/main/java/com/baeldung/maps/initialize/EmptyMapInitializer.java
+++ b/core-java-modules/core-java-collections-4/src/main/java/com/baeldung/maps/initialize/EmptyMapInitializer.java
@@ -32,7 +32,7 @@ public class EmptyMapInitializer {
     return emptyMap;
   }
 
-  public Map createGenericEmptyMapUsingMapsObject() {
+  public Map createGenericEmptyMapUsingGuavaMapsObject() {
     Map genericEmptyMap = Maps.<String, Integer>newHashMap();
     return genericEmptyMap;
   }
@@ -43,6 +43,11 @@ public class EmptyMapInitializer {
     return emptyMapUsingGuava;
   }
 
+  public static Map<String, String> createImmutableMapUsingGuava() {
+	    Map<String, String> emptyImmutableMapUsingGuava = ImmutableMap.of();
+	    return emptyImmutableMapUsingGuava;
+  }
+  
   public SortedMap<String, String> createEmptySortedMap() {
     SortedMap<String, String> sortedMap = Collections.emptySortedMap();
     return sortedMap;
diff --git a/core-java-modules/core-java-collections-4/src/test/java/com/baeldung/maps/initialize/EmptyMapInitializerUnitTest.java b/core-java-modules/core-java-collections-4/src/test/java/com/baeldung/maps/initialize/EmptyMapInitializerUnitTest.java
index cc25205ba7..57183734cb 100644
--- a/core-java-modules/core-java-collections-4/src/test/java/com/baeldung/maps/initialize/EmptyMapInitializerUnitTest.java
+++ b/core-java-modules/core-java-collections-4/src/test/java/com/baeldung/maps/initialize/EmptyMapInitializerUnitTest.java
@@ -28,4 +28,9 @@ public class EmptyMapInitializerUnitTest {
     assertFalse(emptyMapUsingGuava.isEmpty());
   }
 
+  @Test(expected=UnsupportedOperationException.class)
+  public void givenImmutableEmptyMapUsingGuava_whenAddingEntries_throwsException() {
+    Map<String, String> map = EmptyMapInitializer.createImmutableMapUsingGuava();
+    map.put("key", "value");
+  }
 }