diff --git a/lombok-modules/lombok-2/src/main/java/com/baeldung/lombok/standardexception/CustomException.java b/lombok-modules/lombok-2/src/main/java/com/baeldung/lombok/standardexception/CustomException.java
new file mode 100644
index 0000000000..bee85b3398
--- /dev/null
+++ b/lombok-modules/lombok-2/src/main/java/com/baeldung/lombok/standardexception/CustomException.java
@@ -0,0 +1,7 @@
+package com.baeldung.lombok.standardexception;
+
+import lombok.experimental.StandardException;
+
+@StandardException
+public class CustomException extends NumberFormatException {
+}
diff --git a/lombok-modules/lombok-2/src/main/java/com/baeldung/lombok/standardexception/CustomNumberFormatException.java b/lombok-modules/lombok-2/src/main/java/com/baeldung/lombok/standardexception/CustomNumberFormatException.java
new file mode 100644
index 0000000000..fbd98cac16
--- /dev/null
+++ b/lombok-modules/lombok-2/src/main/java/com/baeldung/lombok/standardexception/CustomNumberFormatException.java
@@ -0,0 +1,11 @@
+package com.baeldung.lombok.standardexception;
+
+public class CustomNumberFormatException extends NumberFormatException {
+    public CustomNumberFormatException() {
+        super();
+    }
+
+    public CustomNumberFormatException(String s) {
+        super(s);
+    }
+}
\ No newline at end of file