diff --git a/webapps/examples/WEB-INF/classes/SessionExample.java b/webapps/examples/WEB-INF/classes/SessionExample.java
index 60eaa2e03e4b..14e7c9701c84 100644
--- a/webapps/examples/WEB-INF/classes/SessionExample.java
+++ b/webapps/examples/WEB-INF/classes/SessionExample.java
@@ -18,7 +18,6 @@
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.net.URLEncoder;
-import java.nio.charset.StandardCharsets;
 import java.util.Date;
 import java.util.Enumeration;
 import java.util.ResourceBundle;
@@ -113,7 +112,7 @@ public void doGet(HttpServletRequest request, HttpServletResponse response) thro
             out.println(HTMLFilter.filter(name) + " = " + HTMLFilter.filter(value));
             out.print("<a href=\"");
             out.print(HTMLFilter.filter(
-                    response.encodeURL("SessionExample?dataname=" + URLEncoder.encode(name, StandardCharsets.UTF_8))));
+                    response.encodeURL("SessionExample?dataname=" + URLEncoder.encode(name, "UTF-8"))));
             out.println("\" >delete</a>");
             out.println("<br>");
         }