diff --git a/core-java-11/README.md b/core-java-11/README.md
index a4b0e0e59c..d68a1c87eb 100644
--- a/core-java-11/README.md
+++ b/core-java-11/README.md
@@ -7,3 +7,4 @@
 - [Exploring the New HTTP Client in Java 9 and 11](https://www.baeldung.com/java-9-http-client)
 - [An Introduction to Epsilon GC: A No-Op Experimental Garbage Collector](https://www.baeldung.com/jvm-epsilon-gc-garbage-collector)
 - [Guide to jlink](https://www.baeldung.com/jlink)
+- [Transforming an Empty String into an Empty Optional](https://www.baeldung.com/java-empty-string-to-empty-optional)