diff --git a/core/src/main/java/org/apache/struts2/components/Date.java b/core/src/main/java/org/apache/struts2/components/Date.java
index 6500ef5f6..3c89ce43f 100644
--- a/core/src/main/java/org/apache/struts2/components/Date.java
+++ b/core/src/main/java/org/apache/struts2/components/Date.java
@@ -23,6 +23,7 @@ package org.apache.struts2.components;
 
 import com.opensymphony.xwork2.ActionContext;
 import com.opensymphony.xwork2.TextProvider;
+import com.opensymphony.xwork2.util.LocalizedTextUtil;
 import com.opensymphony.xwork2.util.ValueStack;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -291,8 +292,17 @@ public class Date extends ContextBean {
                 date = ((Calendar) dateObject).getTime();
             } else {
                 if (devMode) {
-                    LOG.error("Expression [{}] passed to <s:date/> tag which was evaluated to [{}]({}) isn't instance of java.util.Date nor java.util.Calendar!",
-                            name, dateObject, (dateObject != null ? dateObject.getClass() : "null"));
+                    String developerNotification = LocalizedTextUtil.findText(
+                            Date.class,
+                            "devmode.notification",
+                            ActionContext.getContext().getLocale(),
+                            "Developer Notification:\n{0}",
+                            new Object[]{
+                                    "Expression [" + name + "] passed to <s:date/> tag which was evaluated to [" + dateObject + "]("
+                                            + (dateObject != null ? dateObject.getClass() : "null") + ") isn't instance of java.util.Date nor java.util.Calendar!"
+                            }
+                    );
+                    LOG.warn(developerNotification);
                 } else {
                     LOG.debug("Expression [{}] passed to <s:date/> tag which was evaluated to [{}]({}) isn't instance of java.util.Date nor java.util.Calendar!",
                             name, dateObject, (dateObject != null ? dateObject.getClass() : "null"));