diff --git a/core-java-modules/core-java-lang-oop-2/src/test/java/com/baeldung/accessmodifiers/PublicAccessModifierUnitTest.java b/core-java-modules/core-java-lang-oop-2/src/test/java/com/baeldung/accessmodifiers/PublicAccessModifierUnitTest.java
index c9664283a7..a2d891ac93 100644
--- a/core-java-modules/core-java-lang-oop-2/src/test/java/com/baeldung/accessmodifiers/PublicAccessModifierUnitTest.java
+++ b/core-java-modules/core-java-lang-oop-2/src/test/java/com/baeldung/accessmodifiers/PublicAccessModifierUnitTest.java
@@ -4,6 +4,8 @@ import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.TestInstance;
 import org.junit.jupiter.api.TestInstance.Lifecycle;
 import com.baeldung.accessmodifiers.publicmodifier.ListOfThree;
+import com.baeldung.accessmodifiers.publicmodifier.Student;
+
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 import static org.junit.jupiter.api.Assertions.assertEquals;
@@ -28,6 +30,15 @@ public class PublicAccessModifierUnitTest {
         assertEquals(2147483647, Integer.MAX_VALUE); //static field
     }
     
+    @Test
+    public void whenChangingStudentInternalRepresentation_clientCodeWillNotBreak() {
+        
+        Student student = new Student();
+        student.setGrade(100);
+        
+        assertEquals(100, student.getGrade());
+    }
+    
     @Test
     public void whenUsingEntrySet_keyValuePairsAreReturned() {