From 6b0ea75cda35af9ad49e8512d371ca9ae1bb5a5d Mon Sep 17 00:00:00 2001
From: sheryllresulta <48046330+sheryllresulta@users.noreply.github.com>
Date: Mon, 18 Mar 2019 18:50:24 +0800
Subject: [PATCH] Update README.md

---
 patterns/README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/patterns/README.md b/patterns/README.md
index 9a15cdff02..1c9a59ea21 100644
--- a/patterns/README.md
+++ b/patterns/README.md
@@ -1,3 +1,4 @@
 ### Relevant Articles:
 - [A Guide to the Front Controller Pattern in Java](http://www.baeldung.com/java-front-controller-pattern)
 - [Introduction to Intercepting Filter Pattern in Java](http://www.baeldung.com/intercepting-filter-pattern-in-java)
+- [Introduction to the Null Object Pattern](https://www.baeldung.com/java-null-object-pattern)