BAEL-2755 - Introduction to the Null Object Pattern

patterns/design-patterns/src/main/java/com/baeldung/nullobject/SmsRouter.java

@@ -0,0 +1,10 @@
+package com.baeldung.nullobject;
+
+public class SmsRouter implements Router {
+
+    @Override
+    public void route(Message msg) {
+        System.out.println("Routing to a SMS gate. Msg: " + msg);
+    }
+
+}