diff --git a/jsf/src/main/java/com/baeldung/springintegration/controllers/ELSampleBean.java b/jsf/src/main/java/com/baeldung/springintegration/controllers/ELSampleBean.java
index 58dedb08b7..a7ca7d3ede 100644
--- a/jsf/src/main/java/com/baeldung/springintegration/controllers/ELSampleBean.java
+++ b/jsf/src/main/java/com/baeldung/springintegration/controllers/ELSampleBean.java
@@ -4,6 +4,7 @@ import java.util.Random;
 import javax.annotation.PostConstruct;
 import javax.faces.application.Application;
 import javax.faces.application.FacesMessage;
+import javax.el.LambdaExpression;
 import javax.faces.bean.ManagedBean;
 import javax.faces.bean.ViewScoped;
 import javax.faces.component.html.HtmlInputText;
@@ -15,6 +16,7 @@ public class ELSampleBean {
 
     private String firstName;
     private String lastName;
+    private Collection<Integer> numberList;
     private String pageDescription = "This page demos JSF EL Basics";
     public static final String constantField = "THIS_IS_NOT_CHANGING_ANYTIME_SOON";
     private int pageCounter;